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with Query do begin
  tempParam=parameters.addparameter;
  tempParam.name='@begindate';
  tempParam.DataType:=ftDateTime;
      tempParam.Direction:=pdInput;

      tempParam.Value:=st;
  strcondition=strcondition+' and begindate=@begindate';
end

strsql=strSelect+strConditon+strGroup+strOder;

query.sql=strsql;

query.open;//´Ë´¦³ö´í¡£¡£¡£


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with bjqry do
  begin
    bjqry.Close;
    bjqry.SQL.Clear;
    bjqry.SQL.Add('select user_id,user_name,user_flag from hs_user where user_id=:uname);
    bjqry.Parameters.ParamByName('uname').Value:='ÀîËÄ';
    bjqry.Open;
  end;



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bjqry.Parameters.


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SQL code:
id INT AUTO_INCREMENT

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ƽ¾ùÉÏÍøÊ±¼ä(Сʱ/Ìì)£º>12Сʱ
ÊÇ·ñµ£Èιý±¾ÉçÇø»òÕ߯äËûÉçÇøÏà¹ØÖ ......

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date              info
2009-1-1 13:00:00 12345
2009-1-1 13:00:01 12345
2009-1-1 13:00:02 12345
......

vb+mssql²éѯÎÊÌâ

±ÈÈç
Ò»¸öÊÇÓû§Áбí
UserID
1
2
3
4

Ò»¸öÊÇ´ÎÊýÁбí(ÿÌì·ÃÎÊÒ»´ÎNum+1)
UserID Day Num
1 2009-09-22  10
2 2009-09-22  20
4 2009-09-22  8
......
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