子查询问题! select * from mail_member m1 where m1.mail_id in (select mail_id from mail_member) 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 是: where 不是 whileselect * from mail_member m1 where m1.mail_id in (select m2.mail_id from mail_member m2) 呵呵SELECT select_list[ INTO new_table ] FROM table_source [ WHERE search_condition ] [ GROUP BY group_by_expression ] [ HAVING search_condition ] [ ORDER BY order_expression [ ASC | DESC ] ] 可以在查询之间使用 UNION 运算符,以将查询的结果组合成单个结果集。语法SELECT statement ::= < query_expression > [ ORDER BY { order_by_expression | column_position [ ASC | DESC ] } [ ,...n ] ] [ COMPUTE { { AVG | COUNT | MAX | MIN | SUM } ( expression ) } [ ,...n ] [ BY expression [ ,...n ] ] ] [ FOR { BROWSE | XML { RAW | AUTO | EXPLICIT } [ , XMLDATA ] [ , ELEMENTS ] [ , BINARY base64 ] } ] [ OPTION ( < query_hint > [ ,...n ]) ] < query expression > ::= { < query specification > | ( < query expression > ) } [ UNION [ ALL ] < query specification | ( < query expression > ) [...n ] ]< query specification > ::= SELECT [ ALL | DISTINCT ] [ { TOP integer | TOP integer PERCENT } [ WITH TIES ] ] < select_list > [ INTO new_table ] [ FROM { < table_source > } [ ,...n ] ] [ WHERE < search_condition > ] [ GROUP BY [ ALL ] group_by_expression [ ,...n ] [ WITH { CUBE | ROLLUP } ] ] [HAVING <search_condition>] where 写成 while 但是你这个查询语句,没有任何意义啊。 while改为where.如果还提示,可能你'('的中英切换不对。 语句写错了,while --》where 即可! 是笔误吗?呵~~~while -->> whereselect * from mail_member m1 where m1.mail_id in (select m2.mail_id from mail_member m2) 初学SQL,问个关于多字段索引的问题,望指教 问一个数据库的问题 SQL Server中能不能设像WinXp中的检查点,用于恢复数据到某一点?如有如何做? adodc数据源记录太多,滚动条无法正常工作 多表查询的一个问题 求助:SQL数据导入问题。 从数据库之间导入表,索引什么的都丢了。请问有什么好的办法可以将几张表完全复制到另一个数据库中么? sql 2005 中的integration services 作用? 请问有谁做过将foxpro6.0的数据表导入到sql server 2000中? 在VFP中如何捕获MS-DOS窗口的输出? T-SQL 里字段循环 存储过程的问题!!
[ INTO new_table ]
FROM table_source
[ WHERE search_condition ]
[ GROUP BY group_by_expression ]
[ HAVING search_condition ]
[ ORDER BY order_expression [ ASC | DESC ] ] 可以在查询之间使用 UNION 运算符,以将查询的结果组合成单个结果集。语法
SELECT statement ::=
< query_expression >
[ ORDER BY { order_by_expression | column_position [ ASC | DESC ] }
[ ,...n ] ]
[ COMPUTE
{ { AVG | COUNT | MAX | MIN | SUM } ( expression ) } [ ,...n ]
[ BY expression [ ,...n ] ]
]
[ FOR { BROWSE | XML { RAW | AUTO | EXPLICIT }
[ , XMLDATA ]
[ , ELEMENTS ]
[ , BINARY base64 ]
}
]
[ OPTION ( < query_hint > [ ,...n ]) ] < query expression > ::=
{ < query specification > | ( < query expression > ) }
[ UNION [ ALL ] < query specification | ( < query expression > ) [...n ] ]< query specification > ::=
SELECT [ ALL | DISTINCT ]
[ { TOP integer | TOP integer PERCENT } [ WITH TIES ] ]
< select_list >
[ INTO new_table ]
[ FROM { < table_source > } [ ,...n ] ]
[ WHERE < search_condition > ]
[ GROUP BY [ ALL ] group_by_expression [ ,...n ]
[ WITH { CUBE | ROLLUP } ]
]
[HAVING <search_condition>]
while -->> where
select * from mail_member m1 where m1.mail_id in (select m2.mail_id from mail_member m2)