ADO CreateParameter 测试程序 （绑定参数类型和数据库中不一样是否能正确执行）

#define INITGUID
#import “c:/Program Files/Common Files/System/ADO/msado15.dll” /
no_namespace rename(“EOF”, “EndOfFile”)

#include <stdio.h>
#include <icrsint.h>
#include <time.h>
#include <tchar.h>

VOID   main()
{

 HRESULT            hr;
 IADORecordBinding   *picRs = NULL;
   
 ::CoInitialize(NULL);
 _ConnectionPtr pConn;
 hr = pConn.CreateInstance(__uuidof(Connection));
 pConn->Open((LPCTSTR)”DSN”, (LPCTSTR)”USER”, (LPCTSTR)”PASSWORD”, adConnectUnspecified);
 
 _CommandPtr  pCommand = NULL;
 _ParameterPtr   pParameter = NULL;
 
 DWORD dwVehiID  = 1234;
 DWORD dwPlanVehiID = 1111; 
 DWORD dwDeparID    = 1111;
 if (pConn == NULL) { return; } 
 try
 {

  if (FAILED(hr = pCommand.CreateInstance(__uuidof(Command))))
   _com_issue_error(hr);
  
  pCommand->ActiveConnection = pConn;
  pCommand->CommandText = “sp_apts_insdeparture”;
  pCommand->CommandType = adCmdStoredProc;
  pParameter.CreateInstance(__uuidof(Parameter));
  
  pParameter = pCommand->CreateParameter((“bFirstChanged”), adInteger, adParamInput, sizeof(int), (_variant_t)(long)(1));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“nLineID”), adInteger, adParamInput, sizeof(int), (_variant_t)(long)(3));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“nVehiID”), adUnsignedInt, adParamInput, sizeof(dwVehiID), (_variant_t)(long)(dwVehiID));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“tBeginTime”), adVarChar, adParamInput, _tcslen(“2009-01-09 15:15:15”), _variant_t(“2009-01-09 15:15:15”));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“tEndTime”), adVarChar, adParamInput, _tcslen(“2009-01-09 16:15:15”), _variant_t(“2009-01-09 16:15:15”));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“eDirection”), adTinyInt, adParamInput, sizeof(BYTE), _variant_t((BYTE)1));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“nFlag”), adTinyInt, adParamInput, sizeof(BYTE), _variant_t((BYTE)1));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“planed_driver_id”), adInteger, adParamInput, sizeof(int), (_variant_t)(long)(8888));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“actual_driver_id”), adInteger, adParamInput, sizeof(int), (_variant_t)(long)(8888));
  pCommand->Parameters->Append(pParameter);
  pParameter = pCommand->CreateParameter((“planed_vehi_id”), adUnsignedInt, adParamInput, sizeof(dwPlanVehiID), (_variant_t)(long)(dwPlanVehiID));
  pCommand->Parameters->Append(pParameter);  
  pParameter = pCommand->CreateParameter((“szcomment”), adVarChar, adParamInput, _tcslen(” “), _variant_t(” “));
  pCommand->Parameters->Append(pParameter);
  
  pParameter = pCommand->CreateParameter((“id”), adUnsignedInt, adParamOutput, sizeof(dwDeparID), (_variant_t)(long)(dwDeparID));
  pCommand->Parameters->Append(pParameter);
  
  pCommand->Execute(NULL, NULL, adCmdStoredProc);
  
  _variant_t varRet=pCommand->Parameters->GetItem(_bstr_t(“id”))->GetValue();
 } 
 catch (_com_error& ) { return; }

 CoUninitialize();
}

今天的文章ADO CreateParameter 测试程序 （绑定参数类型和数据库中不一样是否能正确执行）分享到此就结束了，感谢您的阅读。