时间:2021-07-01 10:21:17 帮助过:3人阅读
--是因为执行顺序的问题,sql语句是先执行from,然后执行where,最后执行select
--正确的写法如下
select *from (select ROW_NUMBER() over(order by id)as num,*from gb_data) as t where t.num>5and t.num<10
--子查询(以查询的表作为条件,在基础上进行第二次的查询)查询所有书出版的年份入会的读者信息
select*from Reader where FYearOfJoin in(select FyearPublished from Book)
GUID:Server中生成GUID的函数是newid()
insert into t_table (id) values (newid())
常用SQL语句的整理--SQL server 2008(查询三--子查询)和guid
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