How to get size of mysql database?
MysqlDatabaseMysql Problem Overview
How to get size of a mysql database?
Suppose the target database is called "v3".
Mysql Solutions
Solution 1 - Mysql
Run this query and you'll probably get what you're looking for:
SELECT table_schema "DB Name",
ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) "DB Size in MB"
FROM information_schema.tables
GROUP BY table_schema;
This query comes from the mysql forums, where there are more comprehensive instructions available.
Solution 2 - Mysql
It can be determined by using following MySQL command
SELECT table_schema AS "Database", SUM(data_length + index_length) / 1024 / 1024 AS "Size (MB)" FROM information_schema.TABLES GROUP BY table_schema
Result
Database Size (MB)
db1 11.75678253
db2 9.53125000
test 50.78547382
Get result in GB
SELECT table_schema AS "Database", SUM(data_length + index_length) / 1024 / 1024 / 1024 AS "Size (GB)" FROM information_schema.TABLES GROUP BY table_schema
Solution 3 - Mysql
Alternatively, if you are using phpMyAdmin, you can take a look at the sum of the table sizes in the footer of your database structure tab. The actual database size may be slightly over this size, however it appears to be consistent with the table_schema method mentioned above.
Screen-shot :
Solution 4 - Mysql
Alternatively you can directly jump into data directory and check for combined size of v3.myd, v3. myi and v3. frm files (for myisam) or v3.idb & v3.frm (for innodb).
Solution 5 - Mysql
To get a result in MB:
SELECT
SUM(ROUND(((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024), 2)) AS "SIZE IN MB"
FROM INFORMATION_SCHEMA.TABLES
WHERE
TABLE_SCHEMA = "SCHEMA-NAME";
To get a result in GB:
SELECT
SUM(ROUND(((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024 / 1024), 2)) AS "SIZE IN GB"
FROM INFORMATION_SCHEMA.TABLES
WHERE
TABLE_SCHEMA = "SCHEMA-NAME";
Solution 6 - Mysql
mysqldiskusage --server=root:MyPassword@localhost pics
+----------+----------------+
| db_name | total |
+----------+----------------+
| pics | 1,179,131,029 |
+----------+----------------+
If not installed, this can be installed by installing the mysql-utils package which should be packaged by most major distributions.
Solution 7 - Mysql
First login to MySQL using
mysql -u username -p
> Command to Display the size of a single Database along with its table in MB.
SELECT table_name AS "Table",
ROUND(((data_length + index_length) / 1024 / 1024), 2) AS "Size (MB)"
FROM information_schema.TABLES
WHERE table_schema = "database_name"
ORDER BY (data_length + index_length) DESC;
Change database_name to your Database
> Command to Display all the Databases with its > size in MB.
SELECT table_schema AS "Database",
ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS "Size (MB)"
FROM information_schema.TABLES
GROUP BY table_schema;
Solution 8 - Mysql
If you want the list of all database sizes sorted, you can use :
SELECT *
FROM (SELECT table_schema AS `DB Name`,
ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) AS `DB Size in MB`
FROM information_schema.tables
GROUP BY `DB Name`) AS tmp_table
ORDER BY `DB Size in MB` DESC;
Solution 9 - Mysql
Go into the mysql data directory and run du -h --max-depth=1 | grep databasename