Columns 및 Tables Append 메서드, Name 속성 예제(VC++)
다음 코드에서는 새 테이블을 만드는 방법을 보여 줍니다.
// BeginCreateTableCpp.cpp
// compile with: /EHsc
#import "msadox.dll" no_namespace
#include "iostream"
using namespace std;
// Function declarations
inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};
int main() {
if ( FAILED(::CoInitialize(NULL) ) )
return -1;
HRESULT hr = S_OK;
// Define ADOX object pointers, initialize pointers. These are in ADOX namespace.
_CatalogPtr m_pCatalog = NULL;
_TablePtr m_pTable = NULL;
try {
TESTHR(hr = m_pCatalog.CreateInstance(__uuidof(Catalog)));
// Open the catalog
m_pCatalog->PutActiveConnection("Provider='Microsoft.JET.OLEDB.4.0';data source='c:\\Northwind.mdb';");
TESTHR(hr = m_pTable.CreateInstance(__uuidof(Table)));
m_pTable->PutName("MyTable");
m_pTable->Columns->Append("Column1",adInteger,0);
m_pTable->Columns->Append("Column2",adInteger,0);
m_pTable->Columns->Append("Column3",adVarWChar,50);
m_pCatalog->Tables->Append(_variant_t((IDispatch *)m_pTable));
printf("Table 'MyTable' is added.\n");
// Delete the table as this is a demonstration.
m_pCatalog->Tables->Delete("MyTable");
printf("Table 'MyTable' is deleted.\n");
}
catch(_com_error &e) {
// Notify the user of errors if any.
_bstr_t bstrSource(e.Source());
_bstr_t bstrDescription(e.Description());
printf("\n\tSource : %s \n\tdescription : %s \n ", (LPCSTR)bstrSource, (LPCSTR)bstrDescription);
}
catch(...) {
cout << "Error occurred in include files...."<< endl;
}
::CoUninitialize();
}