mysql case when记录

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小记

当type=8时，startname从users表获取，当type=13时，startname从warehouse表获取

$sql = ‘select id,start, type, (case
                   when type = ? THEN
                    (select truename
                       from users
                      where users.id = start  limit 1)
                   when type = ? then
                    (select name
                       from warehouse wh
                      where wh.id = start limit 1)
                 end) AS startname, (
                   select name
                       from warehouse wh
                      where wh.id = destination
                  ) AS endname
                 FROM terminal_operation where type in (?,?)‘;
$res = DB::select($sql, [8,13,8,13]);

mysql case when记录

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原文地址：https://www.cnblogs.com/yin5th/p/10249113.html