sql語句儲存過程簡單複習

sql查詢分析器裡建立乙個帶有輸出的儲存過程

if(exists(select * from sysobjects where name='sel' and xtype='p'))

drop proc sel

gocreate proc sel

@cou int output

asbegin

select @cou=count(*) from web_news

endsql查詢分析器裡執行帶有輸出引數的儲存過程

declare @cou int

exec sel @cou output

select @cou

建立帶有輸入引數的儲存過程

if(exists(select * from sysobjects where name='checkuser' and xtype='p'))

drop proc checkuser

gocreate proc checkuser

@username nchar(20)

asbegin

select * from web_news where username=@username

end執行這個帶有輸入引數的儲存過程

exec checkuser aa

帶有輸入和輸出引數的儲存過程

if exists(select * from sysobjects where name='checkuser' and xtype='p')

drop proc checkuser

gocreate proc checkuser

@username nchar(20),

@result int output

asselect @result=count(*) from web_news where username=@username

執行帶有輸入和輸出引數的儲存過程

declare @result int

exec checkuser "a",@result output

select @result

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