sql server 自定义函数的使用
create function test(@Num varchar(20))
returns varchar(50) --返回值类型
select dbo.test(2) --传递参数2
create function GetTableDetails()
returns TABLE
as
return (select * from sales)
select * from dbo.GetTableDetails()
全力参考:https://www.cnblogs.com/diony/archive/2010/12/17/1909014.html
https://www.cnblogs.com/lideng/archive/2013/04/15/3022418.html
https://www.cnblogs.com/csdbfans/p/3514538.html
http://blog.csdn.net/qingheshijiyuan/article/details/50469535