全データベースの全テーブル
mysql> select table_name, table_rows from information_schema.TABLES;
データベース毎
mysql> select table_name, table_rows from information_schema.TABLES where table_schema = 'DB名';
mysql> select table_name, table_rows from information_schema.TABLES;
mysql> select table_name, table_rows from information_schema.TABLES where table_schema = 'DB名';