[置顶] MYSQL分享：获取缺失主键表信息语句。

SELECT a.`TABLE_SCHEMA` AS DB_NAME , a.`TABLE_NAME` , a.`TABLE_ROWS` ,a.`ENGINE`  -- , a.* 

FROM 

information_schema.`TABLES` a

LEFT JOIN  information_schema.`TABLE_CONSTRAINTS` b

	ON a.`TABLE_NAME` = b.`TABLE_NAME` AND a.`TABLE_SCHEMA` = b.`TABLE_SCHEMA` 

WHERE b.`TABLE_SCHEMA` IS NULL 

AND a.`TABLE_TYPE` = 'BASE TABLE'

AND a.`TABLE_SCHEMA` NOT IN ('information_schema','test','mysql','performance_schema')

ORDER BY DB_NAME ,a.`TABLE_ROWS` DESC ;