我正在尝试执行以下查询。share set holder = 22 where SHARE_ID IN (select SHARE_ID from SHARE WHERE holder=1 LIMIT 10)#1235 - This version of MySQL doesn't yet support 'LIMIT & IN/ALL/ANY/SOME subquery'
我有一个嵌套查询,并尝试查看查询中是否有任何全表扫描。delete from ACCESS where ACCESS.MESSAGEID in (select ID from MESSAGE where MESSAGE.CID = 'xzy67sd’)\Gkey: ACCESS_ID1 ref: const
select ci.cardno from taccount ac,tcardinfo ci where ac.accountno = ci.accountno)或任何其他方式选择多个字段 请注意,不是两个查询(主查询和子查询)中的关系。子查询取值取决于主查询的数据。主查询是多表连接的数据集,子查询也是多表连接的数据集