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C/C++ code:

CoInitialize (NULL);
bsSQL = ...(Êý¾Ý¿âÁ¬½Ó×Ö·û´®)
m_pConnection.CreateInstance(__uuidof(Connection));
m_pCommand.CreateInstance(__uuidof(Command));
m_pRecordset.CreateInstance(__uuidof(Recordset));
m_pConnection->Open(bsSQL,"","",adModeUnknown);
m_pCommand->ActiveConnection = m_pConnection;

csSQL.Format (_T("alter table pd add COLUMN %s int"),strColumnsName);
m_pConnection->Execute ((_bstr_t)csSQL,NULL,adCmdText);





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COLUMN %s int"),---->
COLUMN %s integer"),

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COLUMN %s int"),---->
COLUMN %s integer"),
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COLUMN %s integer default 0")ÄØ

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try
{
  m_pConnection->Execute ((_bstr_t)csSQL,NULL,adCmdText);
}
catch(_com_error e)
{
  MessageBox(


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