自定义函数参考:if object_id('[t1]') is not null drop table [t1] go create table [t1]([personid] varchar(10),[name] varchar(10)) insert [t1] select 'p001','001' union all select 'p002','002' union all select 'p003','003'if object_id('[t2]') is not null drop table [t2] go create table [t2]([id] int,[personid] varchar(10),[address] varchar(10)) insert [t2] select 1,'p001','aaa' union all select 2,'p002','bbb' union all select 3,'p002','ccc' -->创建自定义函数的过程 if object_id('get_str') is not null drop function get_str go create function get_str(@a varchar(10)) returns varchar(30) as begin declare @s varchar(30) select @s=isnull(@s+'+','')+[address] from t2 where [personid]=@a return @s end go -->调用函数并查询 select *,dbo.get_str([personid]) as addrss from t1/* personid name addrss ---------- ---------- ------------------------------ p001 001 aaa p002 002 bbb+ccc p003 003 NULL(3 行受影响) */
SQL存储过程实例2007-11-02 15:24实例1:只返回单一记录集的存储过程。 表银行存款表(bankMoney)的内容如下Id userID Sex Money
001 Zhangsan 男 30
002 Wangwu 男 50
003 Zhangsan 男 40
要求1:查询表bankMoney的内容的存储过程create procedure sp_query_bankMoney as select * from bankMoney go exec sp_query_bankMoney注* 在使用过程中只需要把中的SQL语句替换为存储过程名,就可以了很方便吧! 实例2(向存储过程中传递参数):加入一笔记录到表bankMoney,并查询此表中userID= Zhangsan的所有存款的总金额。Create proc insert_bank @param1 char(10),@param2 varchar(20),@param3 varchar(20),@param4 int,@param5 int output with encryption ---------加密 as insert bankMoney (id,userID,sex,Money) Values(@param1,@param2,@param3, @param4) select @param5=sum(Money) from bankMoney where userID='Zhangsan' go 在SQL Server查询分析器中执行该存储过程的方法是: declare @total_price int exec insert_bank '004','Zhangsan','男',100,@total_price output print '总余额为'+convert(varchar,@total_price) go在这里再啰嗦一下存储过程的3种传回值(方便正在看这个例子的朋友不用再去查看语法内容):1.以Return传回整数 2.以output格式传回参数 3.Recordset传回值的区别:output和return都可在批次程式中用变量接收,而recordset则传回到执行批次的客户端中。实例3:使用带有复杂 SELECT 语句的简单过程 下面的存储过程从四个表的联接中返回所有作者(提供了姓名)、出版的书籍以及出版社。该存储过程不使用任何参数。 USE pubs IF EXISTS (SELECT name FROM sysobjects WHERE name = 'au_info_all' AND type = 'P') DROP PROCEDURE au_info_all GO CREATE PROCEDURE au_info_all AS SELECT au_lname, au_fname, title, pub_name FROM authors a INNER JOIN titleauthor ta ON a.au_id = ta.au_id INNER JOIN titles t ON t.title_id = ta.title_id INNER JOIN publishers p ON t.pub_id = p.pub_id GO au_info_all 存储过程可以通过以下方法执行: EXECUTE au_info_all -- Or EXEC au_info_all 如果该过程是批处理中的第一条语句,则可使用: au_info_all 实例4:使用带有参数的简单过程 CREATE PROCEDURE au_info @lastname varchar(40), @firstname varchar(20) AS SELECT au_lname, au_fname, title, pub_name FROM authors a INNER JOIN titleauthor ta ON a.au_id = ta.au_id INNER JOIN titles t ON t.title_id = ta.title_id INNER JOIN publishers p ON t.pub_id = p.pub_id WHERE au_fname = @firstname AND au_lname = @lastname GO au_info 存储过程可以通过以下方法执行: EXECUTE au_info 'Dull', 'Ann' -- Or EXECUTE au_info @lastname = 'Dull', @firstname = 'Ann' -- Or EXECUTE au_info @firstname = 'Ann', @lastname = 'Dull' -- Or EXEC au_info 'Dull', 'Ann' -- Or EXEC au_info @lastname = 'Dull', @firstname = 'Ann' -- Or EXEC au_info @firstname = 'Ann', @lastname = 'Dull' 如果该过程是批处理中的第一条语句,则可使用: au_info 'Dull', 'Ann' -- Or au_info @lastname = 'Dull', @firstname = 'Ann' -- Or au_info @firstname = 'Ann', @lastname = 'Dull'实例5:使用带有通配符参数的简单过程CREATE PROCEDURE au_info2 @lastname varchar(30) = 'D%', @firstname varchar(18) = '%' AS SELECT au_lname, au_fname, title, pub_name FROM authors a INNER JOIN titleauthor ta ON a.au_id = ta.au_id INNER JOIN titles t ON t.title_id = ta.title_id INNER JOIN publishers p ON t.pub_id = p.pub_id WHERE au_fname LIKE @firstname AND au_lname LIKE @lastname GO au_info2 存储过程可以用多种组合执行。下面只列出了部分组合: EXECUTE au_info2 -- Or EXECUTE au_info2 'Wh%' -- Or EXECUTE au_info2 @firstname = 'A%' -- Or EXECUTE au_info2 '[CK]ars[OE]n' -- Or EXECUTE au_info2 'Hunter', 'Sheryl' -- Or EXECUTE au_info2 'H%', 'S%' = 'proc2'
go
create table [t1]([personid] varchar(10),[name] varchar(10))
insert [t1] select 'p001','001'
union all select 'p002','002'
union all select 'p003','003'if object_id('[t2]') is not null drop table [t2]
go
create table [t2]([id] int,[personid] varchar(10),[address] varchar(10))
insert [t2] select 1,'p001','aaa'
union all select 2,'p002','bbb'
union all select 3,'p002','ccc'
-->创建自定义函数的过程
if object_id('get_str') is not null drop function get_str
go
create function get_str(@a varchar(10))
returns varchar(30)
as
begin
declare @s varchar(30)
select @s=isnull(@s+'+','')+[address] from t2 where [personid]=@a
return @s
end
go
-->调用函数并查询
select *,dbo.get_str([personid]) as addrss from t1/*
personid name addrss
---------- ---------- ------------------------------
p001 001 aaa
p002 002 bbb+ccc
p003 003 NULL(3 行受影响)
*/
表银行存款表(bankMoney)的内容如下Id
userID
Sex
Money
001
Zhangsan
男
30
002
Wangwu
男
50
003
Zhangsan
男
40
要求1:查询表bankMoney的内容的存储过程create procedure sp_query_bankMoney
as
select * from bankMoney
go
exec sp_query_bankMoney注* 在使用过程中只需要把中的SQL语句替换为存储过程名,就可以了很方便吧! 实例2(向存储过程中传递参数):加入一笔记录到表bankMoney,并查询此表中userID= Zhangsan的所有存款的总金额。Create proc insert_bank @param1 char(10),@param2 varchar(20),@param3 varchar(20),@param4 int,@param5 int output
with encryption ---------加密
as
insert bankMoney (id,userID,sex,Money)
Values(@param1,@param2,@param3, @param4)
select @param5=sum(Money) from bankMoney where userID='Zhangsan'
go
在SQL Server查询分析器中执行该存储过程的方法是:
declare @total_price int
exec insert_bank '004','Zhangsan','男',100,@total_price output
print '总余额为'+convert(varchar,@total_price)
go在这里再啰嗦一下存储过程的3种传回值(方便正在看这个例子的朋友不用再去查看语法内容):1.以Return传回整数
2.以output格式传回参数
3.Recordset传回值的区别:output和return都可在批次程式中用变量接收,而recordset则传回到执行批次的客户端中。实例3:使用带有复杂 SELECT 语句的简单过程 下面的存储过程从四个表的联接中返回所有作者(提供了姓名)、出版的书籍以及出版社。该存储过程不使用任何参数。 USE pubs
IF EXISTS (SELECT name FROM sysobjects
WHERE name = 'au_info_all' AND type = 'P')
DROP PROCEDURE au_info_all
GO
CREATE PROCEDURE au_info_all
AS
SELECT au_lname, au_fname, title, pub_name
FROM authors a INNER JOIN titleauthor ta
ON a.au_id = ta.au_id INNER JOIN titles t
ON t.title_id = ta.title_id INNER JOIN publishers p
ON t.pub_id = p.pub_id
GO au_info_all 存储过程可以通过以下方法执行: EXECUTE au_info_all
-- Or
EXEC au_info_all 如果该过程是批处理中的第一条语句,则可使用: au_info_all 实例4:使用带有参数的简单过程 CREATE PROCEDURE au_info
@lastname varchar(40),
@firstname varchar(20)
AS
SELECT au_lname, au_fname, title, pub_name
FROM authors a INNER JOIN titleauthor ta
ON a.au_id = ta.au_id INNER JOIN titles t
ON t.title_id = ta.title_id INNER JOIN publishers p
ON t.pub_id = p.pub_id
WHERE au_fname = @firstname
AND au_lname = @lastname
GO au_info 存储过程可以通过以下方法执行: EXECUTE au_info 'Dull', 'Ann'
-- Or
EXECUTE au_info @lastname = 'Dull', @firstname = 'Ann'
-- Or
EXECUTE au_info @firstname = 'Ann', @lastname = 'Dull'
-- Or
EXEC au_info 'Dull', 'Ann'
-- Or
EXEC au_info @lastname = 'Dull', @firstname = 'Ann'
-- Or
EXEC au_info @firstname = 'Ann', @lastname = 'Dull' 如果该过程是批处理中的第一条语句,则可使用: au_info 'Dull', 'Ann'
-- Or
au_info @lastname = 'Dull', @firstname = 'Ann'
-- Or
au_info @firstname = 'Ann', @lastname = 'Dull'实例5:使用带有通配符参数的简单过程CREATE PROCEDURE au_info2
@lastname varchar(30) = 'D%',
@firstname varchar(18) = '%'
AS
SELECT au_lname, au_fname, title, pub_name
FROM authors a INNER JOIN titleauthor ta
ON a.au_id = ta.au_id INNER JOIN titles t
ON t.title_id = ta.title_id INNER JOIN publishers p
ON t.pub_id = p.pub_id
WHERE au_fname LIKE @firstname
AND au_lname LIKE @lastname
GO au_info2 存储过程可以用多种组合执行。下面只列出了部分组合: EXECUTE au_info2
-- Or
EXECUTE au_info2 'Wh%'
-- Or
EXECUTE au_info2 @firstname = 'A%'
-- Or
EXECUTE au_info2 '[CK]ars[OE]n'
-- Or
EXECUTE au_info2 'Hunter', 'Sheryl'
-- Or
EXECUTE au_info2 'H%', 'S%' = 'proc2'
若是直接调用函数的话
顶3楼
sever.schema.object
如:test-server.dbo.student