¶ÁÈ¡SQL Server ±í½á¹¹
ÒýÓÃ×Þ½¨µÄ£º
Cod
SELECT
±íÃû=case when a.colorder=1 then d.name else '' end,
×Ö¶ÎÐòºÅ=a.colorder,
×Ö¶ÎÃû=a.name,
±êʶ=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
Ö÷¼ü=case when exists(SELECT 1 from sysobjects where xtype='PK' and name in (
SELECT name from sysindexes WHERE indid in(
SELECT indid from sysindexkeys WHERE id = a.id AND colid=a.colid
))) then '√' else '' end,
ÀàÐÍ=b.name,
Õ¼ÓÃ×Ö½ÚÊý=a.length,
³¤¶È=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
СÊýλÊý=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
ÔÊÐí¿Õ=case when a.isnullable=1 then '√'else '' end,
ĬÈÏÖµ=isnull(e.text,''),
×Ö¶Î˵Ã÷=isnull(g.[value],'')
from syscolumns a
left join systypes b on a.xty
Ïà¹ØÎĵµ£º
¡¾ÎÊÌâÒ»
¡¿£ºÒѾܾø¶Ô OLE DB Ìṩ³ÌÐò 'MICROSOFT.JET.OLEDB.4.0' µÄÌØÊâ·ÃÎÊ¡£±ØÐëͨ¹ýÁ´½Ó·þÎñÆ÷À´·ÃÎÊ´ËÌṩ³ÌÐò¡£
¡¾·ÖÎö
¡¿£ºÕâÊÇÒòΪÄúµ±Ç°ÓÃÀ´·ÃÎÊÊý¾Ý¿âµÄµÇ¼µÄȨÏÞ²»¹»£¨È¨ÏÞÌ«µÍ£©¡£
¡¾½â¾ö
¡¿£ºÒªÃ´Äú»¹ÓÃsaµÇ¼£¬ÒªÃ´Ð޸ĵ±Ç°µÇ¼µÄȨÏÞ£¬²½ÖèÈçÏ£ºÆóÒµ¹ÜÀíÆ÷→°²È«ÐÔ→µÇ¼→ÕÒµ½ÄãËùÓõ ......
SQL Server 2005 T-SQL Apply
͸¹ýÖ´Ðмƻ®¿ÉÒÔ¿´³ö£¬cross applyÀàËÆ²»´øwhereÌõ¼þµÄÁ¬½Ó¼´cross join £¨½»²æÁ¬½Ó¼´µÑ¿¨¶û»ý£º·µ»ØÐÐÊýΪ£ºÇ°±í·ûºÏÌõ¼þµÄÐгËÉϺó±í·ûºÏÌõ¼þµÄÐУ© ¡£ÐÎʽÉÏ»áÁé»îЩ.
ʹÓà APPLY ÔËËã·û¿ÉÒÔΪʵÏÖ²éѯ²Ù×÷µÄÍⲿ±í±í´ïʽ·µ»ØµÄÿ¸öÐе÷ÓñíÖµº¯Êý¡£±íÖµº¯Êý×÷ΪÓÒÊäÈ룬Íⲿ±í±í´ï ......
declare @CausName as char(20) declare @causenameid as int declare
@Description as varchar(200) declare @Caus_Id as int
declare @sign as char(20)
create table #tb ( Caus_Id int,CausName varchar(20),causNameid int,Caus_Description varchar(200),±êÖ¾ varchar(20))
DECLARE myCursor1 CURSOR F ......
DECLARE @sql varchar(8000)
--ÏÂÃæÊÇɾ³ý15Ììǰ±¸·ÝÎļþµÄ´¦Àí
set @sql='Del E:\Databasebackup\'
@sql=@sql +rtrim(convert(varchar,getdate()-15,112))+'.bak'
Exec master..xp_cmdshell @sql
DECLARE @DelFile Varchar(256)
set ......