mysql一条sql查询多个表数据量
摘要：
select (select count(*) from device0 where status != 0),(select count(*) from device1 where status != 0),(select count(*) from device2 where status != 阅读全文
posted @ 2017-09-06 12:03 长风剑客 阅读(2655) 评论(0) 推荐(0) 编辑
