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  string  cnStr  =  "Provider  =  Microsoft.Jet.OLEDB.4.0;Data  Source  =  "  +  "c:\\data.mdb"; 
  OleDbConnection  cn  =  new  OleDbConnection(cnStr); 
  OleDbDataAdapter  da  =  new  OleDbDataAdapter("select  *  from  ÄãµÄ±íÃû",cn); 
  //data.mdbÖеıí½á¹¹ºÍÄãµÄdatatableÏàͬ; 
  OleDbCommandBuilder  cmb  =  new  OleDbCommandBuilder(da);   
  da.Update(ÄãµÄ±í); 

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unit Unit1;

interface

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select count(1) from HouseList a left join MemberList b on
(a.OperationName=b.UName and a.Eid=1 and a.houselc='2')

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dim conn
dim connstr
dim db
dim dbpaswd  (Õâ¸öÃÜÂë¼ÓÔÚÄÄ)
db=dbpath&"/"&dbname
connstr="DBQ="+server.mappath(""&db&"")+" ......
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