存儲過程的優勢

存儲過程的優勢

    1.存儲過程只在創造時進行編譯，之後每次執行存儲過程都不需再從新編譯，而通常SQL語句每執行一次就編譯一次,因此使用存儲過程可提升數據庫執行速度。
    2.當對數據庫進行復雜操做時(如對多個表進行Update,Insert,Query,Delete時），可將此複雜操做用存儲過程封裝起來與數據庫提供的事務處理結合一塊兒使用。
    3.存儲過程能夠重複使用,可減小數據庫開發人員的工做量
    4.安全性高,可設定只有某此用戶才具備對指定存儲過程的使用權



-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,無參數的存儲過程>
-- =============================================
CREATE PROCEDURE pro_select_book    
AS

BEGIN
    select * from tb_book
END


-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,要傳入一個參數的存儲過程>
-- =============================================
CREATE PROCEDURE pro_selectBookByColor
(
@book_color nchar(10)
)
AS
BEGIN
select * from tb_book where book_color = @book_color
END

--=============================================
執行上面的存儲過程
--=============================================
execute pro_selectBookByColor 'Red'


-- =============================================
-- Author:<Author,,LaiShunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,要傳多個參數的存儲過程>
-- =============================================
CREATE PROCEDURE pro_selectBookByColor_2th
(
    @color char(10),
    @name char(20)
)
AS
BEGIN
    select * from tb_book where book_color=@color and book_name=@name
END


-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,要傳入多個參數的插入記錄存儲過程>
-- =============================================
create procedure pro_insertRecords
(
    @name char(20),
    @color char(10),
    @type int,
    @amount int
)
as
begin
insert into tb_book(book_name,book_color,book_type,book_amount) values(@name,@color,@type,@amount)
end


-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,根據書名刪除該本書的記錄的存儲過程>
-- =============================================
create procedure pro_deleteBook
(
    @name char(10)
)
as
begin
delete from tb_book where book_name = @name
end

-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,修改某書庫存數量的存儲過程>
-- =============================================
create procedure pro_updateBook_amount
(
    @name char(10),
    @amount int
)
as
begin
update tb_book set book_amount=@amount where book_name = @name
end


-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,帶輸出參數的存儲過程>
-- =============================================
create procedure pro_output
(
    @SUM int output,
    @type int
)
as
select @SUM = sum(book_amount) from(select * from tb_book where book_type=@type) as tempTable


-- =============================================
-- Author:        <Author,,laishunsheng>
-- Create date: <Create Date,2008-12-27,>
-- Description:    <Description,加密>
-- =============================================
CREATE PROCEDURE [dbo].[pro_select_book_encryption]
with encryption     
AS

BEGIN
    select * from tb_book
END



-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,帶輸出參數的存儲過程>
-- =============================================
create procedure pro_output_3
(
    @amount int output,
    @type int
    
)
as
begin
select @amount = sum(book_amount) from tb_book where book_type = @type
end


-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,帶輸出參數的存儲過程>
-- =============================================
create procedure pro_output_3
(
    @amount int output,  
)
as
begin
select @amount = sum(book_amount) from tb_book
end



-- =============================================
-- Author:<Author,,laishunsheng>
-- Create date: <Create Date,,2008-12-27>
-- Description:    <Description,,多表鏈接的存儲過程>
-- =============================================
create procedure pro_temporarySale
as
select p.product_id,p.product_name,o.order_customer,o.order_amount,p.product_bookAmount*o.order_amount as TotalMoney
into #tempTable from tb_product p inner join tb_order o on p.product_id = o.product_id
if @@error=0
print 'good !'
else
print 'fail !'

 

摘自：http://www.cnblogs.com/laiss/archive/2010/09/25/1834768.html