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(2693) 评论(0) 推荐(0)
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