To get the total number of rows in a MySQL database, you can use aggregate function SUM() along with inbuilt column TABLE_ROWS from INFORMATION_SCHEMA.TABLES.
The syntax is as follows−
SELECT SUM(TABLE_ROWS) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = database();
Let’s say we are using the database with the name ‘sample’.
Now we will get the total number of rows in a MySQL database−
mysql> SELECT SUM(TABLE_ROWS) FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = database();
This will produce the following output−
+-----------------+ | SUM(TABLE_ROWS) | +-----------------+ | 2043 | +-----------------+ 1 row in set (22.11 sec)