摘要:
=====================新表============================= select AA.UserID AS UserID , AA.UserName AS UserName, SUM( 1) AS SumNeedJoinMeetingCount ... 阅读全文
摘要:
-一个题目涉及到的50个Sql语句--(下面表的结构以给出,自己在数据库中建立表.并且添加相应的数据,数据要全面些. 其中Student表中,SId为学生的ID)------------------------------------表结构------------------------------... 阅读全文
摘要:
Select BB.UserID, BB.UserName, Sum( NeedJoinMeetingCount ) As SumNeedJoinMeetingCount, Sum( ReallyJoinMeetingCount ) As SumReal... 阅读全文