标签: sql sql-server join inner-join where-clause
选择met.metno,eps.sn,el.ed 从埃尔 内部连接在eps.sn = met.sn上相遇 内部加入eps 在el.epid = eps.epid 其中el.etid = 1002 and el.ed>'2017-01-03' and el.ed <'2018-07-05'
答案 0 :(得分:2)
where子句后还有一个inner join。先进行连接(FROM,然后进行WHERE
inner join
FROM
WHERE