All Database Solutions on Gang of Coders

Total of 983 Database Solutions

What is the difference between "INNER JOIN" and "OUTER JOIN"?

Sql Database Join Inner Join Outer Join

How can I list the tables in a SQLite database file that was opened with ATTACH?

Sql Database Sqlite Metadata

Laravel Database Schema, Nullable Foreign

Php Mysql Database Laravel

Microservices with shared database? using multiple ORM's?

Database Database Design Orm Architecture Microservices

Android Room Persistence library and Kotlin

Database Kotlin Kapt Android Room

Alternatives to Toad

Database Oracle

Database - Data Versioning

Database Database Design Versioning

Does dropping a table in MySQL also drop the indexes?

Mysql Database Indexing Sql Drop

Is it a good idea to use an integer column for storing US ZIP codes in a database?

Database Database Design Types Street Address Postal Code

How do I drop a table from SQLite3 in DJango?

Database Django Sqlite

Changing Table Engine in MySQL

Mysql Database Innodb Myisam

Using Solr search index as a database - is this "wrong"?

Java Mysql Database Solr

What is the difference between logical data model and conceptual data model?

Database Database Design

PostgreSQL database service

Windows Database Postgresql

How do I create a HashCode in .net (c#) for a string that is safe to store in a database?

C#.Net Database Hashcode Gethashcode

How to migrate a PostgreSQL database into a SQLServer one?

Sql Server Database Postgresql Migration

Synchronous database queries with Node.js

Database node.js Synchronous

Change primary key column in SQL Server

Sql Sql Server Database Shared Hosting

row-level trigger vs statement-level trigger

Generate insert script for selected records?

Sql Database Sql Server-2008

Why is "close existing connections to destination database" grayed out on SQL Server 2012 Management Studio?

Sql Server Database Sql Server-2012 Ssms Database Restore

How to get a count of number of documents in a collection with Cloud Firestore

Database Firebase Google Cloud-Firestore

Concepts of backref and back_populate in SQLalchemy?

Python Database Sqlalchemy

What is the best way to implement soft deletion?

Sql Database Database Design Backup

How should I store a GUID in Oracle?

Database Oracle Guid

Are MongoDB and CouchDB perfect substitutes?

Mongodb Couchdb Database

Selecting rows where remainder (modulo) is 1 after division by 2?

Sql Database Select Where Clause Modulus

How can I modify the size of column in a MySQL table?

Mysql Database Alter Table

How can I put a database under git (version control)?

Database Git Version Control Postgresql

How to schedule a stored procedure in MySQL

Mysql Database Stored Procedures Mysql Routines

H2 database error: Database may be already in use: "Locked by another process"

Java Database H2

What is difference between foreign key and reference key?

Sql Database Foreign Keys

Error in contrasts when defining a linear model in R

Database R Statistics

How to fix a collation conflict in a SQL Server query?

Sql Server Database Collation

Postgres Error: More than one row returned by a subquery used as an expression

Sql Database Postgresql Subquery Dblink

Mongoose: Schema vs Model?

node.js Mongodb Postgresql Mongoose Database

Adding a new value to an existing ENUM Type

Database Postgresql Enums

Database on a personal github page

Database Github

cx_Oracle: How do I iterate over a result set?

Python Sql Database Oracle Cx Oracle

Best way to understand complex SQL statements?

What are the limitations to SQL Server Compact? (Or - how does one choose a database to use on MS platforms?)

Sql Server Database Visual Studio-2008 Sql Server-Ce

Test User Data (Fake Data)

Database Testing Test Data

How do I shrink my SQL Server Database?

Sql Server Database Shrink Msde2000

Hibernate and no PK

Java Database Hibernate Jpa

Difference between stored procedures and user defined functions

Sql Database Stored Procedures

How to check if a database exists in SQL Server?

Sql Server Database Tsql

Is there any boolean type in Oracle databases?

Sql Database Oracle Boolean Sqldatatypes

What's faster, SELECT DISTINCT or GROUP BY in MySQL?

Mysql Sql Database Group By Distinct

At what point is it worth using a database?

C++Sql Database Qt User Interface

How can I set default storage engine used by MySQL?

Mysql Database Innodb

Variable table name in sqlite

Python Database Sqlite

Online databases for trying out Oracle SQL queries?

Sql Database Oracle

When to use MongoDB

Mysql Mongodb Database Design Relational Database Database

Why is a primary-foreign key relation required when we can join without it?

How to use an user variables in MySQL LIKE clause?

Mysql Sql Database

How do you query DynamoDB?

Database Nosql Amazon Dynamodb

Android SQLite Example

Android Database Sqlite Sqliteopenhelper

How to substring a MySQL table column

Inserting a record into a table with a column declared with the SERIAL function

Database Postgresql

Display all views on oracle database

Database Oracle View Oracle Sqldeveloper

Laravel : Migrations & Seeding for production data

Php Database Laravel Laravel 4 Database Migration

What is the difference between "wait-die" and "wound-wait" deadlock prevention algorithms?

Database Deadlock Database Deadlocks

UNIQUE constraint failed: sqlite database : android

Java Android Database Sqlite Unique Constraint

The Next-gen Databases

Sql Database Nosql Non Relational-Database

Postgresql: how to create table only if it does not already exist?

Sql Database Postgresql

What is the difference between JOIN and UNION?

Sql Database Join Union

Why do we need a temporal database?

Database Temporal Database

Laying out a database schema for a calendar application

Database Schema Calendar Normalization

How to store articles or other large texts in a database

Postgres Alter Column Integer to Boolean

Database Postgresql

Why are foreign keys more used in theory than in practice?

Sql Database Foreign Keys

Should I write table and column names ALWAYS lower case?

Database Database Design

Using a database table as a queue

Sql Database Sql Server-2008 Queue

What is the difference between a lock and a latch in the context of concurrent access to a database?

Database Concurrency Locking

How to enter special characters like "&" in oracle database?

Sql Database Oracle Oracle Sqldeveloper

phpMyAdmin Removing an index

Database Indexing Phpmyadmin Unique

AWS RDS instance upgrade down time

Mysql Database Amazon Web-Services Amazon Rds

Clone MySQL database

Mysql Database Mysqldump

Improving OFFSET performance in PostgreSQL

Database Postgresql Query Optimization

django set DateTimeField to server's current time

Python Database Django

What does ON UPDATE RESTRICT do?

Mysql Database Database Design

Vendor code 17002 to connect to SQLDeveloper

Database Connect Oracle Sqldeveloper

What is a database index?

Database Indexing

Check if list contains item from other list in EntityFramework

C#Database Linq Entity Framework

A SQLiteConnection object for database was leaked! Please fix your application

Java Android Database Sqlite

SELECT and UPDATE multiple records in oriento / orientjs and transaction in waterline

Database sails.js Orientdb Waterline Sails Orientdb

Sharing databases between projects within Intellij

Database Intellij Idea Sharing Projects

SQLite Performance Benchmark -- why is :memory: so slow...only 1.5X as fast as disk?

Python Database Sqlite Memory Benchmarking

Ideas on database design for capturing audit trails

Database Database Design Audit

Using Rails Migration on different database than standard "production" or "development"

Ruby on-Rails Ruby Database Migration

Explaining why "Just add another column to the DB" is a bad idea, to non programmers

Sql Database Architecture Communication Normalization

How to count number of occurrences for all different values in database column?

Sql Database Postgresql

Alternatives to Entity-Attribute-Value (EAV)?

Database Database Design Data Structures Data Modeling Entity Attribute-Value

Can table columns with a Foreign Key be NULL?

Sql Mysql Database Foreign Keys

Migrate database from Postgres to MySQL

Mysql Database Postgresql

Know relationships between all the tables of database in SQL Server

Sql Sql Server Database Tsql

Display dynamic image from database or remote source with p:graphicImage and StreamedContent

Database Image Jsf Jsf 2 Primefaces

Where does H2's Embedded Databases Store the data?

Java Database Jdbc H2 Embedded Database

selecting rows with id from another table

Mysql Sql Database

General-purpose databases that never delete or update data in-place

Database Immutability Survey Database Versioning Datomic

Easy way to view postgresql dump files?

Database Postgresql 9.1 Pg Dump

Import postgres database without roles

Sql Database Postgresql Import Psql

How to persist a graph data structure in a relational database?

Database Graph Relational Database

PostgreSQL error when trying to create an extension

Database Postgresql

List database tables with SQLAlchemy

Python Database Sqlalchemy

PostgreSQL Get a random datetime/timestamp between two datetime/timestamp

Sql Database Postgresql Datetime Timestamp

Does MySQL index foreign key columns automatically?

Mysql Database Indexing

Handling very large data with mysql

Mysql Database Performance Indexing Partitioning

Postgresql Docker role does not exist

Database Postgresql Docker

Xml or Sqlite, When to drop Xml for a Database?

Best Practice for Designing User Roles and Permission System?

Mysql Database Database Design

Why restrict the length of a password?

Database Security Web Applications Passwords

Create SQL Server CE database file programmatically

C#.Net Sql Server Database Sql Server-Ce

Multiple databases in Rails

Ruby on-Rails Database Activerecord

What is the difference between graph-based databases and object-oriented databases?

Database Db4o Neo4j Graph Databases Object Oriented-Database

Database design for a social networking site

Database Database Design Social Networking

Is it good database design to have admin users in the same table as front-end users?

Sql Sql Server Database Database Design Data Modeling

update one table with data from another

How do I update an android sqlite database column value to null using ContentValues?

Android Sql Database Sqlite

Displaying a Table in Django from Database

Django Database

create table with sequence.nextval in oracle

Sql Database Oracle Plsql

Why do SQL databases use a write-ahead log over a command log?

Sql Database Logging Transactions Voltdb

Maximum concurrent connections to MySQL

Create a view with ORDER BY clause

Sql Server Database Tsql View Sql Server-2008-R2

Show values from a MySQL database table inside a HTML table on a webpage

Php Mysql Database Html Table

Rails checking if a record exists in database

Ruby on-Rails Database Null

Is Microsoft dropping support for SDF database files in Visual Studio?

Database Visual Studio Sql Server-Ce

Warning: mysqli_connect(): (HY000/1045): Access denied for user 'username'@'localhost' (using password: YES)

Php Mysql Database Phpmyadmin Localhost

using sqlalchemy to load csv file into a database

Python Database Sqlalchemy

Scaling Postgres horizontally

Database Postgresql Horizontal Scaling

AWS: Why does my RDS instance keep starting after I turned it off?

Database Amazon Web-Services Aws Lambda

How to resolve ORA-011033: ORACLE initialization or shutdown in progress

Database Oracle

Is writing server log files to a database a good idea?

Database Logging Log Analysis Log Files

What is the difference between Unique Key and Index with IsUnique=Yes?

Sql Server Database

What's the point of using Amazon SimpleDB?

Database Amazon Web-Services Amazon Simpledb

Data Warehouse Considerations: When and Why?

Database Database Design Data Warehouse

What is the most clever and easy approach to sync data between multiple entities?

Database Algorithm Mobile Synchronization

Can a database table be without a primary key?

Mysql Sql Server Database

How to store MySQL query results in another Table?

Mysql Sql Database

How to do database unit testing?

Database Unit Testing Database Testing

Extreme wait-time when taking a SQL Server database offline

Database Sql Server-2005 Performance

Why do you create a View in a database?

Sql Sql Server Database Tsql

What is the difference between a primary key and a index key

Database Primary Key

What column type should be used to store serialized data in a mysql db?

SQL Server giving logins(users) db_owner access to database

Sql Sql Server Database

django OneToOne reverse access

Database Django One to-One

How to visualize database tables in postgresql using pgAdmin?

Sql Database Postgresql Pgadmin

Database partitioning - Horizontal vs Vertical - Difference between Normalization and Row Splitting?

Database Database Design Database Performance Sharding Database Partitioning

How can I import a .sql file into my Heroku postgres database?

Database Postgresql Heroku Import

Version of SQLite used in Android?

Database Android Sqlite Schema Migration

What are database normal forms and can you give examples?

Database Database Design Database Normalization

Does it make sense to dockerize (containerize) databases?

Database Virtualization Docker

mongoose difference of findOneAndUpdate and update

Database Mongodb Mongoose Sql Update

Remove double quotes from the return of a function in PostgreSQL

Json Database Postgresql Function

Entity Framework core - Contains is case sensitive or case insensitive?

C#Database Postgresql Linq Entity Framework-Core

Compare a date string to datetime in SQL Server?

Sql Server Database Tsql Datetime

Why is SELECT * considered harmful?

How to list all databases in the mongo shell?

Database Mongodb Mongodb Query

How can I do a BEFORE UPDATED trigger with sql server?

Sql Sql Server Database Triggers Sql Server-Express

First name, middle name, last name. Why not Full Name?

Database Database Design User Interface

Database structure and source control - best practice

Database Version Control

How to store an array into mysql?

Php Mysql Database

What are the benefits of using database cursor?

Sql Database Database Cursor

Right way to close WPF GUI application: GetCurrentProcess().Kill(), Environment.Exit(0) or this.Shutdown()

C#Wpf Database Exception Handling Close Application

Max length for client ip address

Sql Database Database Design

Drop default constraint on a column in TSQL

Sql Sql Server Database Tsql

data block size in HDFS, why 64MB?

Database Hadoop Mapreduce Block Hdfs

SQL Server 2008 R2 Stuck in Single User Mode

Sql Sql Server Database Sql Server-2008 Database Deployment

What is the difference between single and double quotes in SQL?

Sql Database Quotes

difference between primary key and unique key

Mysql Sql Database Primary Key Unique Key

What is the datatype bytea and when would I use it?

Database Postgresql Definition Bytea

How to drop softDeletes from a table in a migration

Php Database Laravel Laravel Migrations

Which version of PostgreSQL am I running?

Linux Database Postgresql

How do I list all the columns in a table?

Sql Mysql Sql Server Database Oracle

What is Hash and Range Primary Key?

Hash Amazon Dynamodb Primary Key Database Nosql

How do I interpret precision and scale of a number in a database?

Sql Database Decimal Scale Precision

Backup/Restore a dockerized PostgreSQL database

Database Postgresql Backup Docker

What's the best practice for primary keys in tables?

Sql Sql Server Database Relational

What does ON [PRIMARY] mean?

Sql Sql Server Database Database Design

CAP theorem - Availability and Partition Tolerance

Database Nosql Consistency Availability

SQL server query to get the list of columns in a table along with Data types, NOT NULL, and PRIMARY KEY constraints

Sql Sql Server Database Sql Server-2005 Custom Data-Type

Storing JSON in database vs. having a new column for each key

Mysql Sql Sql Server Database Optimization

Correct use of transactions in SQL Server

Sql Sql Server Database Tsql Transactions

Entity Framework and Connection Pooling

.Net Database Entity Framework ado.net Connection Pooling

What's the difference between MyISAM and InnoDB?

Mysql Database Innodb Myisam

What's wrong with foreign keys?

Database Database Design Foreign Keys Referential Integrity Data Integrity

How to compare dates in datetime fields in Postgresql?

Sql Database Postgresql Date

Is there a .NET/C# wrapper for SQLite?

C#.Net Database Sqlite

How to randomly select rows in SQL?

Sql Database Random

Good PHP ORM Library?

Php Database Orm

Need to list all triggers in SQL Server database with table name and table's schema

Sql Sql Server Database Tsql Triggers

Is the primary key automatically indexed in MySQL?

Mysql Database Indexing Key

Advantages and disadvantages of GUID / UUID database keys

Database Guid Uuid

Count the occurrences of DISTINCT values

Mysql Sql Database Distinct

Django Model - Case-insensitive Query / Filtering

Database Django Django Models Filtering

Fastest way to count exact number of rows in a very large table?

How to cache data in a MVC application

asp.net Mvc Database Caching

The ALTER TABLE statement conflicted with the FOREIGN KEY constraint

Sql Sql Server Database Foreign Keys

How do I quickly rename a MySQL database (change schema name)?

Mysql Database Innodb Rename

Find rows that have the same value on a column in MySQL

Sql Mysql Database

Create a new database with MySQL Workbench

Mysql Database Mysql Workbench

First-time database design: am I overengineering?

Mysql Database Database Design Schema Database Normalization

MySQL dump by query

Sql Mysql Database

Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.sock) in

Php Mysql Database

Best way to check for "empty or null value"

Sql Database Postgresql Null Coalesce

Safely remove migration In Laravel

Php Database Laravel Artisan Migrate

Use email address as primary key?

Sql Database Database Design Postgresql

What did MongoDB not being ACID compliant before v4 really mean?

Sql Mongodb Acid Database Nosql

Best way to work with dates in Android SQLite

Android Sql Database Sqlite Date

Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?

Sql Database Postgresql Indexing Unique Constraint

Table is marked as crashed and should be repaired

Mysql Database Wordpress

Optimise PostgreSQL for fast testing

Sql Database Performance Postgresql Database Tuning

Foreign key constraints: When to use ON UPDATE and ON DELETE

Mysql Sql Database Foreign Keys

phpMyAdmin - Error > Incorrect format parameter?

What is an ORM, how does it work, and how should I use one?

Database Orm Language Agnostic

How to create user for a db in postgresql?

Database Postgresql Authentication Connection

Query to list number of records in each table in a database

Sql Server Database

When NOT to use Cassandra?

Database Rdbms Nosql Cassandra

MySQL: Cloning a MySQL database on the same MySql instance

Mysql Database Copy Clone

Difference between set with {merge: true} and update

Database Firebase Google Cloud-Firestore

JOIN queries vs multiple queries

Mysql Database Join Query Optimization

Explanation of BASE terminology

Database Nosql Terminology Definition Base Db

How do I get the "id" after INSERT into MySQL database with Python?

Python Mysql Database

Location of my.cnf file on macOS

Mysql Database Macos

H2 in-memory database. Table not found

Java Database H2

What are best practices for multi-language database design?

Sql Database Database Design

What resources exist for Database performance-tuning?

Mysql Sql Server Database Oracle Postgresql

What is the difference between Non-Repeatable Read and Phantom Read?

Database Oracle Transactions Isolation Level Transaction Isolation

What is best tool to compare two SQL Server databases (schema and data)?

Sql Sql Server Database Compare

Possibility of duplicate Mongo ObjectId's being generated in two different collections?

Mongodb Database Nosql

Connect to a heroku database with pgadmin

Database Postgresql Heroku Pgadmin

How to configure postgresql for the first time?

Linux Database Postgresql Configuration

What should every developer know about databases?

Database Language Agnostic Database Design

How do I create a MongoDB dump of my database?

Database Mongodb Database Dump

delete_all vs destroy_all?

Ruby on-Rails Ruby Database Activerecord

"where 1=1" statement

Mysql Sql Database

Strings as Primary Keys in SQL Database

Sql Database Database Design String Primary Key

The object 'DF__' is dependent on column '' - Changing int to double

Sql Sql Server Database Entity Framework Entity Framework-4

Fastest hash for non-cryptographic uses?

Php Database Security Hash

MyISAM versus InnoDB

Mysql Database Performance Innodb Myisam

Store images in a MongoDB database

Mongodb Database

What is sharding and why is it important?

Database Terminology

Generate table relationship diagram from existing schema (SQL Server)

Sql Server Database Diagram

How can I get column names from a table in Oracle?

Sql Database Oracle

How to use mongoimport to import csv

Database Mongodb Csv Import Mongoimport

Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc

Why should I use document based database instead of relational database?

Database Couchdb Relational Non Relational-Database

How do I move a redis database from one server to another?

Database Redis Data Migration Database Migration

Copy values from one column to another in the same table

How to check if a table exists in a given schema

Sql Database Postgresql Information Schema Search Path

How does the HyperLogLog algorithm work?

Database Algorithm Math Data Structures Hyperloglog

How to find the mysql data directory from command line in windows

Mysql Database Linux Windows Command Line

How to check which locks are held on a table

Sql Sql Server Database Performance Sql Server-2005

Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?

Database Database Design Types Varchar

Generate the ERD for an existing database

Database Postgresql Erd

Reset identity seed after deleting records in SQL Server

Sql Sql Server Database Sql Server-2008 Azure Sql-Database

Database, Table and Column Naming Conventions?

Database Database Design Language Agnostic Naming Conventions

What's the difference between identifying and non-identifying relationships?

Database Database Design Data Modeling Identifying Relationship

Import SQL file into mysql

Mysql Sql Database Windows Import

How do I automatically update a timestamp in PostgreSQL

Database Postgresql Timestamp

Difference between database and schema

Sql Server Database Sql Server-2005 Database Schema

Binary Data in MySQL

Mysql Database Binary Data Data Storage

What is the difference between a schema and a table and a database?

Database Schema Definition Database Table

How to find out the MySQL root password

Maximum number of records in a MySQL database table

Mysql Database Limit Database Table

Is it possible to specify the schema when connecting to postgres with JDBC?

Java Database Postgresql Jdbc Database Schema

Storing time-series data, relational or non?

Database Nosql Relational Database Time Series Non Relational-Database

Easiest way to copy a table from one database to another?

How SID is different from Service name in Oracle tnsnames.ora

Database Oracle Service Administration Sid

How do I reset a sequence in Oracle?

Sql Database Oracle Sequence

List all sequences in a Postgres db 8.1 with SQL

Sql Database Postgresql Migration Sequences

What scalability problems have you encountered using a NoSQL data store?

Database Nosql Key Value-Store Graph Databases Distributed Database

Is it better to use multiple databases with one schema each, or one database with multiple schemas?

Database Database Design Postgresql Database Permissions

Throw an error preventing a table update in a MySQL trigger

Mysql Database Triggers

Surrogate vs. natural/business keys

Database Database Design Primary Key Key

Storing money in a decimal column - what precision and scale?

Sql Database Database Design Currency

Find duplicate records in MongoDB

Mongodb Aggregation Framework Database

How to do an INNER JOIN on multiple columns

What is a good choice of database for a small .NET application?

Mongodb Sqlite Vistadb Eloquera Database

How can I tell where mongoDB is storing data? (its not in the default /data/db!)

Mongodb Directory Database

What's the difference between findAndModify and update in MongoDB?

Database Mongodb Sql Update

How to think in data stores instead of databases?

Database Google App-Engine Google Cloud-Platform Google Cloud-Datastore

What is database pooling?

Database Database Connection Connection Pooling

Right query to get the current number of connections in a PostgreSQL DB

Sql Database Postgresql Dbconnection

PDO get the last ID inserted

Php Mysql Database Pdo

How to empty a redis database?

Database Nosql Redis

Postgres: clear entire database before re-creating / re-populating from bash script

Database Backup Postgresql

Relational table naming convention

Database Database Design Coding Style Naming Conventions Relational Database

Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints

C#asp.net Sql Database Informix

IN vs OR in the SQL WHERE Clause

Bulk insert with SQLAlchemy ORM

Python Mysql Database Orm Sqlalchemy

SQL, Postgres OIDs, What are they and why are they useful?

Sql Database Performance Postgresql

Difference between scaling horizontally and vertically for databases

Database Database Design Nosql Scalability

How to do a batch insert in MySQL

Mysql Sql Database Insert

Is there any NoSQL data store that is ACID compliant?

Database Nosql Acid

Elastic search, multiple indexes vs one index and types for different data sets?

Database Search Elasticsearch

Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?

Sql Database Postgresql Jdbc Ddl

Foreign Key naming scheme

Database Naming Conventions Foreign Keys

What is the difference between an ORM and an ODM?

Database Orm Odm

How do ACID and database transactions work?

Database Transactions Acid

Pros and Cons of SQLite and Shared Preferences

Android Database Sqlite Sharedpreferences Data Storage

Difference between 3NF and BCNF in simple terms (must be able to explain to an 8-year old)

Database Relational Database Database Normalization 3nf

What does GRANT USAGE ON SCHEMA do exactly?

Database Postgresql Schema Sql Grant Database Permissions

Implementing Comments and Likes in database

Mysql Database Design Patterns Database Design

What is NoSQL, how does it work, and what benefits does it provide?

Multiple Indexes vs Multi-Column Indexes

Sql Server Database Indexing

MongoDB vs. Cassandra

Mongodb Database Design Cassandra Database

What's wrong with nullable columns in composite primary keys?

Database Database Design

What's the recommended way to connect to MySQL from Go?

Mysql Database Go

Difference between Fact table and Dimension table?

Database Data Warehouse Business Intelligence Fact Table

How to unit test an object with database queries

Database Unit Testing

Exposing database IDs - security risk?

Database Security

What is the difference between a database and a data warehouse?

Database Data Warehouse

How do I find out my MySQL URL, host, port and username?

Java Mysql Database Jdbc Database Connection

How do I alter the position of a column in a PostgreSQL database table?

Sql Database Postgresql Alter Table

How to get english language word database?

Reset the database (purge all), then seed a database

Ruby on-Rails Database Seeding

Store query result in a variable using in PL/pgSQL

Database Postgresql Stored Procedures Plpgsql Postgresql 9.1

Mongoose and multiple database in single node.js project

Javascript node.js Mongodb Mongoose Database

'IF' in 'SELECT' statement - choose output value based on column values

Mysql Sql Database

SQL query to find record with ID not in another table

Sql Database Postgresql

What is the best place for storing uploaded images, SQL database or disk file system?

Database Filesystems Image Uploading Binaryfiles

What should I name a table that maps two tables together?

Sql Database Database Design Naming Conventions Data Modeling

What is a database transaction?

Database Concurrency Transactions Theory Failover

How to write a simple database engine

Sql Database Theory Database Engine

Copying data from one SQLite database to another

Database Sqlite

NoSql vs Relational database

Database Database Design Nosql Relational Database Rdbms

How can I avoid concurrency problems when using SQLite on Android?

Android Database Sqlite

Database cluster and load balancing

Database Load Balancing Cluster Computing Database Agnostic

A migration to add unique constraint to a combination of columns

Ruby on-Rails Database

What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?

Sql Server Database Tsql Collation

Is there a way to set an "expiry" time, after which a data entry is automatically deleted in PostgreSQL?

Database Postgresql Ttl

Can you get DB username, pw, database name in Rails?

Ruby on-Rails Ruby Database Activerecord Environment

SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?

Sql Database Database Design Cascade Relation

What is the difference between SQL and MySQL?

Mysql Sql Database

How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?

Mysql Database Database Replication

Select last N rows from MySQL

Is mongodb running?

Mongodb Unix Database Nosql

How to design a database for User Defined Fields?

Sql Database Database Design User Defined-Fields

Is there a MySQL option/feature to track history of changes to records?

Sequelize.js: how to use migrations and sync

Database node.js Database Migration sequelize.js

SQLAlchemy: cascade delete

Python Database Sqlalchemy

MySQL: ignore errors when importing?

Mysql Database Import

How to drop columns using Rails migration

Ruby on-Rails Ruby Database Activerecord Rails Migrations

How to get size of mysql database?

Difference between rake db:migrate db:reset and db:schema:load

Ruby on-Rails Ruby Database Rake

Solutions for INSERT OR UPDATE on SQL Server

Sql Sql Server Database Insert Upsert

Swapping column values in MySQL

How can I add comments in MySQL?

Mysql Database Comments

Where does mongodb stand in the CAP theorem?

Mongodb Cap Theorem Database Nosql

What is the most efficient way to store tags in a database?

Database Database Design Tags Data Modeling Tagging

Deleting all records in a database table

Ruby on-Rails Ruby Database Ruby on-Rails-3

How does database indexing work?

Sql Database Performance Indexing Database Indexes

Using git repository as a database backend

Database Git Database Performance Database Replication Document Database

Why is it not advisable to have the database and web server on the same machine?

Database Security Networking Infrastructure Hardware Infrastructure

What is the difference between CHARACTER VARYING and VARCHAR in PostgreSQL?

Database Postgresql Varchar Varying

How to Get True Size of MySQL Database?

Mysql Database Size Byte Storage

Good tool to visualise database schema?

Mysql Database Database Design Schema Visualization

Export Postgresql table data using pgAdmin

Database Postgresql Export Pgadmin

How to move a model between two Django apps (Django 1.7)

Python Mysql Database Django Schema Migration

LINQ to SQL Left Outer Join

.Net Database Linq Linq to-Sql

Lightweight Javascript DB for use in Node.js

Javascript Database Key Value-Store

Primary key or Unique index?

Sql Database Database Design

Reorder / reset auto increment primary key

What is an MDF file?

Mdf Sql Server Database File

mysql: see all open connections to a given database?

How can I check if a View exists in a Database?

Sql Sql Server Database Stored Procedures View

Entity Framework .Remove() vs. .DeleteObject()

C#Database Entity Framework Orm

How to find largest objects in a SQL Server database?

Sql Server Database

Storing Data in MySQL as JSON

Mysql Json Database

Ruby on Rails: How do I add a not null constraint to an existing column using a migration?

Ruby on-Rails Database Migration Constraints Notnull

The backend version is not supported to design database diagrams or tables

Sql Sql Server Database Ssms

How do you debug MySQL stored procedures?

Mysql Database Debugging Stored Procedures

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What is the best way to seed a database in Rails?

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How to simulate a DB for testing (Java)?

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How do databases work internally?

Database Reference Internals

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Database Image Theory Storage Blob

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Android database encryption

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Java Database Content Management Jcr

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When or why would you use a right outer join instead of left?

Sql Database Right Join

When shouldn't you use a relational database?

Sql Database Nosql Relational Database

Best method to store Enum in Database

C#Database Visual Studio Database Design Enums

How many columns is too many columns?

Database Database Design Database Performance

Does MySQL ignore null values on unique constraints?

Mysql Database Unique Constraint

Can't import database through phpmyadmin file size too large

Mysql Database Apache Phpmyadmin Wampserver

How do I get the creation date of a MySQL table?

Mysql Sql Sql Server Database

How do I get the total number of unique pairs of a set in the database?

Switching from SQLite to MySQL with Flask SQLAlchemy

Python Mysql Database Sqlite Flask Sqlalchemy

How to pg_dump an RDS Postgres database?

Database Postgresql Amazon Web-Services

Detected resolved migration not applied to database on flyway

Database Flyway

SQLite as a production database for a low-traffic site?

Database Sqlite Production Environment

When and why are database joins expensive?

Database Performance Join Relational Database Denormalization

How to compare only Date without Time in DateTime types in Linq to SQL with Entity Framework?

C#.Net Database Entity Framework Linq to-Sql

Database/SQL: How to store longitude/latitude data?

Sql Mysql Database Performance Sqlperformance

Business Logic in Database versus Code?

Database Architecture Methodology N Tier-Architecture

How is the data in a MongoDB database stored on disk?

Mongodb Database

Looking for Thesaurus Data

Database Thesaurus

MySQL stored procedures use them or not to use them

Mysql Database Performance Database Design Stored Procedures

How to implement a db listener in Java

Java Database Listener

What's a PostgreSQL "Cluster" and how do I create one?

Sql Database Postgresql Postgresql 9.1

Usecases: InfluxDB vs. Prometheus

Database Influxdb Prometheus

Get the Last Inserted Id Using Laravel Eloquent

Php Database Laravel Eloquent

What's the difference between CharField and TextField in Django?

Sql Django Database Storage

Composite primary keys versus unique object ID field

Ruby on-Rails Database Design Patterns Database Design

Best way to save a ordered List to the Database while keeping the ordering

C#Database Nhibernate Sql Order-By

Which one to use, int or Integer

Java Database Performance Types Primitive

mysql server port number

Php Mysql Database Database Connection Port Number

In Django models.py, what's the difference between default, null, and blank?

Python Database Django String Integer

Case Sensitive collation in MySQL

Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]

Java Database Hibernate

How can I force entity framework to insert identity columns?

asp.net Sql Server Database Entity Framework Ef Code-First

PostgreSQL: Drop PostgreSQL database through command line

Database Postgresql

Cassandra: text vs varchar

Database Cassandra

Which SQL query is better, MATCH AGAINST or LIKE?

Sql Mysql Database Search

Best practices to store CreditCard information into DataBase

Mysql Database Security Database Design Credit Card

Query if Android database exists!

Android Database

How to dump mysql table structure without data with a SQL query?

how to use Blob datatype in Postgres

Database Postgresql

PostgreSQL: SQL script to get a list of all tables that have a particular column as foreign key

Sql Database Postgresql Foreign Keys

Django Model() vs Model.objects.create()

Python Django Database Django Models

Doing a WHERE .. IN subquery in Doctrine 2

Sql Database Doctrine Orm

Best representation of an ordered list in a database?

Database Database Design Rdbms

Create mysql table directly from CSV file using the CSV Storage engine?

Mysql Database Csv Storage Engines

Dataset - Vehicle make/model/year (free)

Composite Primary Keys : Good or Bad?

Sql Database Database Design Relational Database

Starting and populating a Postgres container in Docker

Database Postgresql Docker

Where can I find sample databases with common formatted data that I can use in multiple database engines?

Database Sample

What are the performance improvement of Sequential Guid over standard Guid?

Database Primary Key Guid

Large public datasets?

Database Performance Dataset Benchmarking

What are the options for storing hierarchical data in a relational database?

Sql Database Tree Relational Database Hierarchical Data

Compare two MySQL databases

Mysql Database Diff

In what way does denormalization improve database performance?

Database Performance Database Design Normalization Denormalization

Spring Security 3 database authentication with Hibernate

Database Hibernate Authentication Spring Security

Naming of boolean column in database table

Sql Server Database Database Design Naming Conventions

Why does VARCHAR need length specification?

Sql Database Varchar

Meaning of "n:m" and "1:n" in database design

Mysql Database Foreign Keys Relationship

IllegalArgumentException: the bind value at index 1 is null

Android Database Sqlite Android Contentprovider

Practical example for each type of database (real cases)

Database Nosql Relational Database

Rails :include vs. :joins

Ruby on-Rails Ruby Database Join Rails Activerecord

Swap unique indexed column values in database

What is a Covered Index?

Sql Database Indexing

Stored procedures/DB schema in source control

Sql Server Database Version Control

What is the purpose of constraint naming

Sql Database Constraints Naming

What is MYSQL Partitioning?

Mysql Database Partitioning

disable NOTICES in psql output

Database Postgresql Verbosity

Why use JPA instead of writing the SQL query using JDBC?

Java Database Jpa Jdbc Orm

I need a client side browser database. What are my options

Database Web Applications Plugins Html

MongoDB normalization, foreign key and joining

Mongodb Foreign Keys Normalization Database Nosql

auto increment ID in H2 database

Database Auto Increment H2

Can I remove transients in the wp_options table of my WordPress install?

Mysql Database Wordpress

What's the difference between TRUNCATE and DELETE in SQL

Sql Database Truncate

Error Code: 2013. Lost connection to MySQL server during query

Mysql Sql Database Mysql Workbench

What datatype to use when storing latitude and longitude data in SQL databases?

Sql Database Geocoding Latitude Longitude

What is difference between SQLite and SQL

Android Sql Database Sqlite

Using COALESCE to handle NULL values in PostgreSQL

Sql Database Postgresql Null Coalesce

Cloud Firestore deep get with subcollection

Database Firebase Google Cloud-Platform Google Cloud-Firestore Data Modeling

What is the best way to store media files on a database?

Mysql Database Audio Multimedia

Could someone please explain LDAP?

Database Ldap Protocols

What databases do the World Wide Web's biggest sites run on?

Database Database Design Web Applications Scalability

MySQL GROUP BY two columns

Sql Mysql Database

T-SQL Cast versus Convert

Sql Sql Server Database Tsql

Auto Generate Database Diagram MySQL

Mysql Database Database Design Diagram

Python: Number of rows affected by cursor.execute("SELECT ...)

Python Sql Rows Database

How to get all table names from a database?

Java Database Jdbc Database Metadata

Fill database tables with a large amount of test data

MySQL - Replace Character in Columns

Mysql Sql Database

What is the biggest ID number that autoincrement can produce in mysql

Mysql Database Integer Auto Increment

Case statement in MySQL

Mysql Sql Database Case

What are horizontal and vertical partitions in database and what is the difference?

MongoDB opposite of $addToSet

Mongodb Database

MySQL : ERROR 1215 (HY000): Cannot add foreign key constraint

Mysql Sql Database

Failed to connect to mysql at 127.0.0.1:3306 with user root access denied for user 'root'@'localhost'(using password:YES)

Mysql Database Connection

What are the performance characteristics of sqlite with very large database files?

Database Performance Sqlite

How do I index a database column

Sql Database Indexing

What are the advantages of using a single database for EACH client?

Database Database Design Multi Tenant

What is a good OO C++ wrapper for sqlite

C++Database Sqlite

How to store a list in a db column

Oracle DB: How can I write query ignoring case?

Sql Database Oracle

Questions every good Database/SQL developer should be able to answer

Cannot add a NOT NULL column with default value NULL in Sqlite3

Ruby on-Rails Database Sqlite Sqlite3 Ruby

Populating django field with pre_save()?

Python Database Django Model Triggers

Bulk/batch update/upsert in PostgreSQL

Sql Database Postgresql Insert Sql Update

Conditional INSERT INTO statement in postgres

Database Postgresql Conditional Statements Sql Insert

Postgres - Transpose Rows to Columns

Sql Database Postgresql Crosstab Transpose

Android: Cannot perform this operation because the connection pool has been closed

Java Android Database Sqlite Singleton

Persist Security Info Property=true and Persist Security Info Property=false

C#Database Ms Access Database Connection Connection String

Why doesn't Oracle tell you WHICH table or view does not exist?

Sql Database Oracle Ora 00942

How do I test database-related code with NUnit?

C#Database Unit Testing Tdd Nunit

What is the easiest way to ignore a JPA field during persistence?

Java Database Hibernate Jpa

Difference Between Schema / Database in MySQL

Mysql Database Schema Database Schema

When to use CouchDB vs RDBMS

Database Couchdb Rdbms

How can I store and retrieve images from a MySQL database using PHP?

Php Mysql Database Blob

Advantages / Disadvantages of pconnect option in CodeIgniter

Php Database Performance Codeigniter

How do I do a "NOT IN" query in Mongo?

Mongodb Database

How to duplicate a MySQL database on the same server

Mysql Database Sync Replicate

Format date in MySQL SELECT as ISO 8601

Mysql Database Date Format Iso8601

Generating a single Entity from existing database using symfony2 and doctrine

Php Database Symfony Doctrine

MySQL - One To One Relationship?

Mysql Sql Database Database Design One to-One

Composite Primary key vs additional "ID" column?

Sql Sql Server Database Database Design

SQLite insert speed slows as number of records increases due to an index

Database Optimization Sqlite Insert

Liquibase lock - reasons?

Database Oracle Liquibase

Select MongoDB documents where a field either does not exist, is null, or is false?

Mongodb Mongodb Query Database

How to stop insertion of Duplicate documents in a mongodb collection

Mongodb Mongodb Query Database Nosql

Mongodb: Failed to connect to 127.0.0.1:27017, reason: errno:10061

Windows Mongodb Database Nosql

TypeError: tuple indices must be integers, not str

Python Sql Database

How do you write a case insensitive query for both MySQL and Postgres?

Mysql Ruby on-Rails Database Postgresql Heroku

MySQL foreign key to allow NULL?

Mysql Database Null Foreign Keys Referential Integrity

How to select data of a table from another database in SQL Server?

Sql Sql Server Database Linked Server

Log to database instead of log files

Ruby on-Rails Database Logging

What are OLTP and OLAP. What is the difference between them?

Database Database Design Database Schema Olap Oltp

Postgresql find total disk space used by a database

Database Postgresql Diskspace

Laravel 4 db seed specific seeder file

Database Laravel 4

How to get the trigger(s) associated with a view or a table in PostgreSQL

Sql Database Postgresql

Altering column size in SQL Server

Sql Sql Server Database Tsql Alter Table

docker-compose with multiple databases

Database Docker Docker Compose

Star-Schema Design

Database Design Patterns Data Warehouse Star Schema Dimensional Modeling

Is there a dbunit-like framework that doesn't suck for java/scala?

Java Database Testing Scala Dbunit

Can HTML5 databases and localStorage be shared across subdomains?

Database Html Dns Subdomain Local Storage

What does "slug" mean

Database Couchdb

Should OLAP databases be denormalized for read performance?

Database Database Design Data Modeling Olap Data Warehouse

move table from one schema to another schema ?

What's the best separator/delimiter character(s) for a plaintext db file?

Database Sqlite Delimiter

Best place to close database connection

Android Database Sqlite

How to execute a .sql script from bash

Mysql Database Linux Bash

Codeigniter - multiple database connections

Mysql Database Codeigniter

Is there a powerful database system for time series data?

Database Performance Time Series

oracle - what statements need to be committed?

Sql Database Oracle Session Commit

Update Query with INNER JOIN between tables in 2 different databases on 1 server

Sql Server Database Syntax Inner Join

Fabric.js - how to save canvas on server with custom attributes

Database Json Savechanges Fabricjs

Difference between Stream Replication and logical replication

Database Postgresql Database Replication

Using etcd as primary store/database?

Database Kubernetes Etcd

Altering database tables in Django

Database Django

How to check if mysql database exists

Mysql Database Exists

MySQL not using indexes with WHERE IN clause?

Sql Mysql Ruby on-Rails Database Optimization

How to release possible Postgres row locks?

Sql Database Postgresql

Generate a resultset of incrementing dates in TSQL

Sql Sql Server Database Sql Server-2005 Tsql

How can I find MAX with relational algebra?

Database Relational Database Relational Algebra

What's the difference between the name argument in @Entity and @Table when using JPA?

Java Database Jpa Annotations Persistence

How do I make a MySQL database run completely in memory?

How to do version control for SQL Server database?

Sql Server Database Svn Version Control

Replace Into Query Syntax

Mysql Sql Database Replace

Derived account balance vs stored account balance for a simple bank account?

Database Database Design Derived Table

Transactions for read-only DB access?

Database Transactions Data Access

When should I use stored procedures?

Sql Database Stored Procedures

How do I backup a database file to the SD card on Android?

Database Android Backup Sd Card

Proper Repository Pattern Design in PHP?

Php Database Laravel Repository Repository Pattern

What does character set and collation mean exactly?

Mysql Database Database Design Character Set

Which key/value store is the most promising/stable?

Python Ruby Database Comparison

Unique key with NULLs

Mysql Database Null Relational Model

Drawable to byte[]

Android Database Drawable Android Bitmap

How to roll back migrations using Flyway?

Java Database Flyway Rollback

Cursor adapter and sqlite example

Android Database Sqlite Android Layout Android Cursoradapter

MongoDB vs. Cassandra vs. MySQL for real-time advertising platform

Mongodb Database Design Cassandra Database Nosql

Why should I avoid loops when designing relationships for a database?

Database Database Design Loops Data Modeling Entity Relationship

PHPExcel and Text Wrapping

Php Mysql Database Phpexcel

What is difference between primary index and secondary index exactly?

Mysql Database Oracle Indexing

Rename a table in MySQL

Mysql Database Table Rename

How big can a MySQL database get before performance starts to degrade

Mysql Database Database Performance

Grant privileges on future tables in PostgreSQL?

Sql Database Postgresql

No UseDatabaseErrorPage() extension method in Net Core 3.0

C#.Net Database Visual Studio .Net Core

How do I alter a mysql table column defaults?

Mysql Database Timestamp Alter

Securly Storing OpenID identifiers and OAuth tokens

Database Security Encryption Openid Oauth

What's the best database structure to keep multilingual data?

Mysql Database Localization Translation Multilingual

What are the differences between B trees and B+ trees?

Database Data Structures

What are the differences between a superkey and a candidate key?

converting database from mysql to mongoDb

Mysql Mongodb Database

IP address storing in MySQL database using PHP

Php Mysql Database Ip Field

Simple export and import of a SQLite database on Android

Java Android Database Sqlite

Can I rollback a transaction I've already committed? (data loss)

Database Postgresql Data Recovery

What is the syntax meaning of RAISERROR()

Sql Sql Server Database Sql Server-2008 Sql Server-2008-R2

List all values of a certain field in mongodb

Mongodb Mongodb Query Database

Laravel nested relationships

Php Mysql Database Laravel

Import psycopg2 Library not loaded: libssl.1.0.0.dylib

Python Database Postgresql Python 2.7 Postgresql 9.3

How to connect to a local database in SQL Server Management Studio?

Sql Server Database Ssms

Can't export my database from mysql workbench

Mysql Database Export Mysql Workbench

Anyone using CouchDB?

Database Couchdb

How to get a value from the last inserted row?

Java Database Postgresql Jdbc

What is a View in Oracle?

Database Oracle Views

Django persistent database connection

Python Database Django Mod Wsgi Persistent

Threaded Django task doesn't automatically handle transactions or db connections?

Python Database Django Multithreading Transactions

Database schema design for a double entry accounting system?

Database Database Design Accounting

View all foreign key constraints for entire MySQL database

Mysql Foreign Keys Database

What's the difference between " = null" and " IS NULL"?

Is DbContext the same as DataContext?

C#Database Entity Framework-4

What MySQL drivers are available for node.js?

Javascript Mysql Database node.js

What is the best practice in naming your "user" table?

Database Database Design Naming Conventions

"Cannot drop database because it is currently in use". How to fix?

Database Unit Testing Entity Framework Entity Framework-4.1 Database Connection

sqlite3.OperationalError: unable to open database file

Python Database Django Sqlite Django Settings

Database design: 3 types of users, separate or one table?

Mysql Database Database Design User Interface Relational Database

Database design for user settings

Mysql Sql Server Database Database Design Relational Database

How to automatically destroy django test database

Python Database Django Testing Hudson

phpMyAdmin Duplicate Table

Php Database Phpmyadmin

How to increase MySQL connections(max_connections)?

Mysql Database Sockets Database Connection

How to use multiple databases in Laravel

Php Mysql Laravel Database

Job for mysqld.service failed See "systemctl status mysqld.service"

Mysql Linux Database Amazon Web-Services

PreparedStatements and performance

Java Database Performance Prepared Statement

in general, should every table in a database have an identity field to use as a PK?

Sql Database Database Design

What does =* mean?

Sql Sql Server Database Tsql

sqlite select with condition on date

Sql Database Sqlite Date

Calculate Time Difference Between Two Rows

Sql Server Database Difference Between-Rows

Why use SQL database?

Sql Database Database Design Data Structures

What effects does using a binary collation have?

Mysql Database Binary String Comparison Collation

PG::ConnectionBad - could not connect to server: Connection refused

Ruby on-Rails Ruby Database Postgresql Database Connection

How do I test Rails migrations?

Ruby on-Rails Database Testing

Share SQLite database between 2 android apps?

Android Database Sqlite Sharing

Conditional logic in PostDeployment.sql script using SQLCMD

Sql Database Sql Server-2008 Sqlcmd

Why no many-to-many relationships?

How can I iterate over ManyToManyField?

Python Database Django Orm Model

Where to find practical well-designed database schema examples to learn from?

Optimistic locking in MySQL

Mysql Sql Locking Database Optimistic

What do these Copy Only Backup options mean?

Sql Server Database Sql Server-2008

Find duplicate column value in sqlite

Database Sqlite

How to execute multiple queries using psql command from bash shell?

Database Postgresql Shell