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  ÐòºÅ=a.colorder,
  --±êʶ=case   when   COLUMNPROPERTY(   a.id,a.name,'IsIdentity')=1   then   'ÊÇ'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   'ÊÇ'   else   ''   end,           
  ×Ö¶ÎÃû=a.name,     
  ÀàÐÍ=b.name,  
  Õ¼ÓÃ×Ö½ÚÊý=a.length,  
  ³¤¶È=COLUMNPROPERTY(a.id,a.name,'PRECISION'),   
  ÔÊÐí¿ÕÖµ=case   when   a.isnullable=1   then   'ÊÇ'else   '·ñ'   end,  
  ĬÈÏÖµ=isnull(e.text,''),  
  ×Ö¶ÎÃèÊö=isnull(g.[value],'')  
  from   syscolumns   a  
  left   join   systypes   b   on   a.xtype=b.xusertype  
  inner   join   sysobjects   d   on   a.id=d.id     and   d.xtype='U'   and     d.name&


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How do I release sql express database?


Questions
I have a simple app that
uses an SQL Express 2005 database. When the user closes the app, I want
to give the option to back up the database by making a copy in another
directory. However, when I try to do it, I get "The process cannot
access the file '...\Pricing.MDF' because i ......

SQL Ìí¼Óɾ³ý·þÎñÆ÷

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EXEC sp_addlinkedserver
      @server='LQXLSJ-600A5A60',--±»·ÃÎʵķþÎñÆ÷±ðÃû
      @srvproduct='',
      @provider='SQLOLEDB',
      @datasrc='LQXLSJ-600A5A60'   --Òª·ÃÎ ......

SQL °´ÖÜ,ÔÂ,¼¾¶È,Äê²éѯͳ¼ÆÊý¾Ý

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select to_char(date,'iw'),sum() 
from 
where 
group by to_char(date,'iw') 
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select to_char(date,'mm'),sum() 
from 
where 
group by to_char(date,'mm') 
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select to_char(date,'q'),sum() 
fr ......
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