sql server 函数学习

sql server 创建函数

资料

https://docs.microsoft.com/zh-cn/sql/relational-databases/user-defined-functions/create-user-defined-functions-database-engine?view=sql-server-2017

https://www.cnblogs.com/ABblog/p/5660610.html

-- SELECT *from  wzh_demo1
CREATE FUNCTION mydemo1(@aaa varchar（20）)
RETURNS @table table(id int ,book VARCHAR(20),descript VARCHAR(20),money_ VARCHAR(20), author VARCHAR(20))
as
BEGIN
    INSERT into @table(id,book,descript,money_,author)
    SELECT * from wzh_demo1 where book=@aaa
    return
 
end

运行函数效果