ADO Recordset 对象中的updateBatch函数的使用方法(转)

Posted 2020-08-05 IT-渡子腾

1.设置 pRecord->CursorLocation = adUseClient;

2.open方法中设置lockType 为adLockBatchOptimistic

_RecordsetPtr pRecord;  
    pRecord.CreateInstance("ADODB.Recordset");  
  
    pRecord->CursorLocation = adUseClient;  
  
    CString strSQL  ;  
    strSQL.Append("SELECT * fROM emp ");  
      
    try  
    {  
        pRecord->Open(_bstr_t(strSQL),pConnection.GetInterfacePtr(),adOpenStatic,adLockBatchOptimistic,adCmdText);  
  
        CString strValue;  
        while(!pRecord->AdoEOF)  
        {  
            strValue.Format("Test_%d",pRecord->AbsolutePosition);  
            pRecord->PutCollect("name",_variant_t(strValue));  
            pRecord->MoveNext();  
        }  
  
        pRecord->UpdateBatch(adAffectAll);  
        pRecord->Close();  
    }  
    catch(_com_error &e)  
    {  
        OutputDebugString(e.Description());  
    }