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SQLÊý¾Ý¿â

1.      ´æ´¢¹ý³Ì(¶¨Òå&±àд)
l  ´´½¨´æ´¢¹ý³Ì
CREATE PROCEDURE storedproc1
AS
SELECT *
from tb_project
WHERE  Ô¤¼Æ¹¤ÆÚ<= 90
ORDER BY  Ô¤¼Æ¹¤ÆÚ DESC
GO
exec storedproc1
GO
 
l   Ð޸Ĵ洢¹ý³Ì
ALTER PROCEDURE storedproc1
AS
SELECT ÏîÄ¿Ãû³Æ,Ô¤¼Æ¹¤ÆÚ
from tb_project
WHERE Ô¤¼Æ¹¤ÆÚ>=90
ORDER BY Ô¤¼Æ¹¤ÆÚ DESC
GO
exec storedproc1
GO
 
CREATE PROCEDURE store7
@name varchar(10),@avgpbiaodi int OUTPUT
AS
DECLARE @errorsave int
SET @errorsave=0
SELECT @avgpbiaodi=AVG(Ô¤¼Æ¹¤ÆÚ)
from tb_project AS p INNER JOIN tb_employee AS e
ON p.¿Í»§±àºÅ= e.±àºÅ
WHERE e.ÐÕÃû=@name
IF(@@error<>0)
SET @errorsave=@@error
RETUREN @errorsave
GO
DECLARE @returnvalue int,@avg int
exec @returnvalue=store7 'ËïСÀö',@avg OUTPUT
PRINT 'Ö´ÐеĽá¹û'
PRINT '·µ»ØÖµ='+CAST(@returnvalue AS char(2))
PRINT 'sun¸ºÔðÏîÄ¿µÄƽ¾ù¹¤ÆÚ£º'  +CAST(@avg AS char(10))
GO
 
 
 
2.      EXEC &GO(ʹÓô洢¹ý³Ì)
 
l  ²é¿´´æ´¢¹ý³Ì
 
EXEC sp_helptext storedproc1
EXEC sp_depends storedproc1
EXEC sp_help storedproc1  ---ÔÚµ±Ç°Êý¾Ý¿âÖвéÕÒ¶ÔÏó
 
ʵÀý239//////////////////////////////
USE sml
GO
CREATE VIEW ÊÓͼ
AS
SELECT *
from tb_employee
WHERE ¹¤×Ê=600
EXEC sp_helptext 'ÊÓͼ'  --ÏÔʾ¸Ã¶ÔÏóµÄ¶¨ÒåÐÅÏ¢,¶ÔÏó±ØÐëÔÚµ±Ç°Êý¾Ý¿âÖÐ
USE sml
EXEC sp_depends 'ÊÓͼ'  --±»¼ì²éÏà¹ØÐеÄÊý¾Ý¿â¶ÔÏó,¶ÔÏó¿ÉÒÔÊDZí,ÊÓͼ,´æ´¢¹ý³Ì,»ò´¥·¢Æ÷,¶ÔÏóµÄ--Êý¾ÝÀàÐÍΪvarchar(766).ÈôÒ»¸ö¶ÔÏóÒýÓÃÁíÒ»¸ö¶ÔÏó,ÔòÈËȨÚÀǰÕßÒÀÀµºóÕß,ͨ¹ý¼ì²ésysdepends±í--È·¶¨Ïà¹ØÐÔ
GO
 
//////////////////////////////////
EXEC sp_rename'ÈËÔ±±í','ÈËÔ±ÐÅÏ¢±í'
EXEC sp_rename'ÈËÔ±ÐÅÏ¢±í.µç»°','ÁªÏµµç»°','COLUMN'
 
EXEC sp_detach_db @dbname = 'pubs'
EXEC sp_attach_single_file_db @dbname = 'pubs',
   @physname = 'c:\Program Files\Microsoft SQL Server\MSSQL\Data\pubs.mdf'
 
////////////////////
USE master
EXEC sp_addextendedproc xp_hello, 'xp


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1. DDL ºÍ DML
/**//*** DDL ***/
begin
    EXECUTE IMMEDIATE 'drop table temp_1';
    EXECUTE IMMEDIATE 'create table temp_1(name varchar2(8))';
end;
/**//*** DML ***/
declare
    v_1 varchar2(8);
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SQL·ÖÒ³²éѯ

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1.MYSQLʵÏÖ
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l  INNER JOIN
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ÏÂÃæÊÇANSI SQL£­92±ê×¼
select *  from    t_institution i
inner join t_teller t
on i.inst_no = t.inst_no  //˵Á½¸ö±íÖ®¼äµÄ¹ØÏµÓÃON
where i.inst_no = "5801"
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