MYSQL 指定数据库查询所有表行数。

SELECT CONCAT('union all  select  ''', TABLE_SCHEMA ,''' as db ,''',TABLE_NAME,''' as tbname, count(1) as rows from ', TABLE_SCHEMA ,'.',TABLE_NAME )  AS SqlExe FROM information_schema.TABLES AS t WHERE t.TABLE_TYPE = 'BASE TABLE'AND t.TABLE_SCHEMA = 'AdDataCenter'

-- 因为直接访问视图时，mysql数据统计不精确。