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Total of 62 Primary Key Solutions
How can I do 'insert if not exists' in MySQL?
Mysql
Sql
Sql Insert
Primary Key
Unique Constraint
Sqlite primary key on multiple columns
Sqlite
Primary Key
Ddl
Composite Primary-Key
How to reset postgres' primary key sequence when it falls out of sync?
Postgresql
Primary Key
Database Sequence
Unable to update the EntitySet - because it has a DefiningQuery and no <UpdateFunction> element exist
C#
asp.net
.Net
Entity Framework
Primary Key
What's the Hi/Lo algorithm?
Database
Algorithm
Primary Key
Identifier
Hilo
Can I have multiple primary keys in a single table?
Database
Database Design
Primary Key
Composite Primary-Key
What are the best practices for using a GUID as a primary key, specifically regarding performance?
Sql Server
Entity Framework
Database Design
Primary Key
Guid
SQL Server add auto increment primary key to existing table
Sql Server
Sql Server-2008
Primary Key
Alter Table
difference between primary key and unique key
Mysql
Sql
Database
Primary Key
Unique Key
What is Hash and Range Primary Key?
Hash
Amazon Dynamodb
Primary Key
Database
Nosql
Difference between Key, Primary Key, Unique Key and Index in MySQL
Mysql
Indexing
Primary Key
Unique Key
Sqlperformance
How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
Postgresql
Primary Key
Auto Increment
Django queries - id vs pk
Django
Orm
Primary Key
Add primary key to existing table
Sql
Sql Server
Sql Server-2008
Constraints
Primary Key
How to properly create composite primary keys - MYSQL
Mysql
Primary Key
Myisam
Composite Key
Composite Primary-Key
ALTER TABLE to add a composite primary key
Mysql
Sql
Primary Key
Alter Table
Composite Primary-Key
Remove Primary Key in MySQL
Mysql
Sql
Database Design
Primary Key
Mysql Error-1075
Strings as Primary Keys in SQL Database
Sql
Database
Database Design
String
Primary Key
Is there a REAL performance difference between INT and VARCHAR primary keys?
Mysql
Performance
Primary Key
Innodb
Myisam
Surrogate vs. natural/business keys
Database
Database Design
Primary Key
Key
Insert auto increment primary key to existing table
Mysql
Primary Key
Is an index needed for a primary key in SQLite?
Sqlite
Indexing
Primary Key
How can I define a composite primary key in SQL?
Sql
Primary Key
Composite Primary-Key
SQL - many-to-many table primary key
Sql
Primary Key
Many to-Many
UUID max character length
Oracle
Primary Key
Uuid
Entity Framework and SQL Server View
Entity Framework
Sql Server-2005
.Net 3.5
Primary Key
Sql View
Is it fine to have foreign key as primary key?
Database
Foreign Keys
Primary Key
Updating MySQL primary key
Mysql
Primary Key
Why use multiple columns as primary keys (composite primary key)
Database Design
Relational Database
Primary Key
Ddl
Database Table
How can I alter a primary key constraint using SQL syntax?
Sql
Sql Server
Primary Key
Composite Primary-Key
sql primary key and index
Sql
Sql Server
Tsql
Indexing
Primary Key
Using a UUID as a primary key in Django models (generic relations impact)
Django
Django Models
Primary Key
Content Type
Uuid
Foreign key referring to primary keys across multiple tables?
Sql
Foreign Keys
Primary Key
Why does select SCOPE_IDENTITY() return a decimal instead of an integer?
Sql Server
Primary Key
Scope Identity
Reset PostgreSQL primary key to 1
Postgresql
Primary Key
Reset
ADO.NET Entity Framework: Update Wizard will not add tables
.Net
Visual Studio-2008
Entity Framework
ado.net
Primary Key
How to retrieve the last autoincremented ID from a SQLite table?
Database
Sqlite
Primary Key
Auto Increment
Junction Table
How to get primary key of table?
Php
Mysql
Primary Key
How do you like your primary keys?
Algorithm
Database Design
Relational Database
Primary Key
Ddl
Using Rails, how can I set my primary key to not be an integer-typed column?
Ruby on-Rails
Database
Migration
Primary Key
Auto Increment after delete in MySQL
Sql
Mysql
Primary Key
Auto Increment
Can a foreign key refer to a primary key in the same table?
Sql
Foreign Keys
Primary Key
Can I use VARCHAR as the PRIMARY KEY?
Mysql
Sql
Primary Key
Unique
Varchar
SQL: set existing column as Primary Key in MySQL
Mysql
Sql
Indexing
Primary Key
What are the performance improvement of Sequential Guid over standard Guid?
Database
Primary Key
Guid
SQL Server: how to add new identity column and populate column with ids?
Sql
Sql Server
Primary Key
Database Cursor
MySQL - Meaning of "PRIMARY KEY", "UNIQUE KEY" and "KEY" when used together while creating a table
Mysql
Sql Server
Primary Key
Unique Key
CREATE TABLE AS with PRIMARY KEY in one statement (PostgreSQL)
Postgresql
Primary Key
Create Table
How to reset the primary key of a table?
Mysql
Primary Key
Best way to reset an Oracle sequence to the next value in an existing column?
Sql
Oracle
Oracle10g
Primary Key
Sequence
How can I set two primary key fields for my models in Django?
Python
Django
Django Models
Model
Primary Key
make an ID in a mysql table auto_increment (after the fact)
Mysql
Primary Key
Auto Increment
is primary key automatically indexed in postgresql?
Postgresql
Indexing
Primary Key
Composite Primary Key On Table Variable In Stored Procedure
Sql
Sql Server
Sql Server-2008
Stored Procedures
Primary Key
Primary key for multiple column in PostgreSQL?
Postgresql
Database Design
Primary Key
Ddl
Composite Primary-Key
Determine a table's primary key using TSQL
Sql
Sql Server
Tsql
Primary Key
Change Primary Key
Sql
Oracle
Primary Key
Change primary key in PostgreSQL table
Postgresql
Primary Key
Primary & Foreign Keys in pgAdmin
Postgresql
Foreign Keys
Primary Key
Pgadmin
Composite Primary Key performance drawback in MySQL
Mysql
Performance
Primary Key
Composite Key
When should I use primary key or index?
Sql
Primary Key
Indexing
What is the difference between a primary key and a index key
Database
Primary Key