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      Àý:      Select * from tableName 
                Exec('select * from tableName') 
                Exec sp_executesql N'select * from tableName'    -- Çë×¢Òâ×Ö·û´®Ç°Ò»¶¨Òª¼ÓN 
 
2:×Ö¶ÎÃû£¬±íÃû£¬Êý¾Ý¿âÃûÖ®Àà×÷Ϊ±äÁ¿Ê±£¬±ØÐëÓö¯Ì¬SQL 
 
    ´íÎó:        declare @fname varchar(20) 
                set @fname = 'FiledName' 
                Select @fname from tableName              -- ´íÎó,²»»áÌáʾ´íÎ󣬵«½á¹ûΪ¹Ì¶¨ÖµFiledName,²¢·ÇËùÒª¡£
    ÕýÈ·:      Exec('select ' + @fname + ' from tableName')     -- Çë×¢Òâ¼ÓºÅǰºóµÄµ¥ÒýºÅµÄ±ßÉϼӿոñ
 
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                declare @fname varchar(20) 
                set @fname = 'FiledName' --ÉèÖÃ×Ö¶ÎÃû
 
                declare @s varchar(1000) 
                set @s = 'select ' + @fname + ' from tableName' 
                Exec(@s)                -- ³É¹¦
     
    
     
	
	
    
    
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BACKUP DATABASE mydb
TO DISK='c:\olddb.bak' 
WITH INIT
--ΪÁ˲âÊÔ£¬°Ñ±¸·ÝºÃµÄÎļþ´ÓCÅÌÒÆ¶¯µ½D:\tempdb Îļþ¼Ð
--»¹Ô
--1.ÓôËÓï¾äµÃµ½±¸·ÝÎļþµÄÂß¼ÎļþÃû£º
RESTORE FILELISTONLY from DISK = N'd:\tempdb\olddb.bak' --±¸·ÝÎļþ´æ·Å·¾¶
--¿´LogicalName£¬Ò»°ã»áÓÐÁ½¸öÎļþ,È磺
--olddb &nbs ......
	
    
        
    
     --±¸·ÝÊÂÎñÈÕÖ¾ (×ÔÉÏÒ»´Î±¸·ÝÒÔÀ´£¬ÖÁµ±Ç°µÄÒÑÍê³ÉµÄÊÂÎñµÄÈÕÖ¾)
backup log MyDBName to disk='F:\dbbak\GamePoint\MyDBName_log_2010052709.bak';
 
--½Ø¶ÏÈÕÖ¾(½Ø¶Ïµôµ±Ç°µÄÒÑÍê³ÉµÄÊÂÎñµÄÈÕÖ¾), SQL Server 2005, 2008ûÓÐÕâ¸öÑ¡Ïî.
backup log MyDBName with no_Log;
 
--ÊÕËõÈÕÖ¾(ÖÁ1M,µ ......
	
    
        
    
    /*
--2010-05-27(¶«Éý)
 
 
 
SQL SERVER 2008 ÐÂÊý¾Ý¿âÀàÐÍhierarchyid
       
    SQL SERVER 2008ÒýÈëÁËеÄhierarchyidÊý¾ÝÀàÐÍ,¿ÉÒÔÓÃËüÀ´×ö±¾µØ´æ´¢²¢ÇÒÔÚÊ÷²ã´Î
½á¹¹ÖйÜÀíÆäλÖÃ.Ö»ÓÃÕâ¸öº¯ÊýÄܼò½àµØ±íʾ²ã´Î½á¹¹ÖеÄλÖÃ.¸Ãº¯ÊýÌṩµÄһЩ ......
	
    
        
    
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    declare @xml xml
set @xml = '<root/>'
select @xml
declare @value varchar(10)
set @value = 'val1'
set @xml.modify('insert <item value="{sql:variable("@value")}" /> into (/root)[1]')
select @xml
set @value = 'val2'
set @xml.modify('replace value of (/root/item/@value)[1] with "val2 ......