用ADOX
BOOL CPassportDoc::CreateDB(LPCTSTR lpszFile)
{
if(::PathFileExists(lpszFile)){
CString strTemp;
strTemp.Format(IDS_TARGET_EXISTS,lpszFile);
AfxMessageBox(lpszFile);
return FALSE;
}
ADODB::_ConnectionPtr tempConnn;
ADOX::_CatalogPtr pCatalog = NULL;
ADOX::_TablePtr pTable = NULL;
ADOX::_IndexPtr pIndexNew = NULL;
ADOX::_IndexPtr pIndex = NULL;
CString strConnect;
CString strDBPath=lpszFile;
strConnect.Format(_T("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%s"),strDBPath);
COleVariant Connect(strConnect);
try{
pCatalog.CreateInstance(_T("ADOX.Catalog"));
pCatalog->Create((LPCTSTR)strConnect);//创建数据库
tempConnn.CreateInstance(_T("ADODB.Connection"));
tempConnn->PutCommandTimeout(30);
tempConnn->PutConnectionTimeout(30);
tempConnn->put_CursorLocation(ADODB::adUseClient);
tempConnn->Open(_bstr_t(strConnect),_bstr_t(),_bstr_t(),ADODB::adConnectUnspecified);
pCatalog->PutActiveConnection(_variant_t((IDispatch *) tempConnn));
pTable.CreateInstance(_T("ADOX.Table"));
pTable->ParentCatalog =pCatalog;
pTable->Name="Passport";
ADOX::ColumnsPtr pCols =pTable->Columns;
pCols->Append(_T("RecordID") ,ADOX::adInteger,0);//自动编号字段
pCols->Append(_T("Name") ,ADOX::adWChar,255);//文本字段
pCols->Append(_T("DateOfBirth") ,ADOX::adDate,0);//日期字段
pCols->Append(_T("OtherInfo"),ADOX::adLongVarWChar,0);//备注字段
pCatalog->Tables->Refresh();
long lCount=pCols->Count;
for(long i=0;i<lCount;i++){
pCols->GetItem(i)->ParentCatalog =pCatalog;//重要!设置Catalog,参见Q201826 PRB: Error 3265 When You Access Properties Collection
ADOX::PropertiesPtr pProperties=pCols->GetItem(i)->Properties;
if(pProperties){//这里是用于调试的属性显示代码
long lp=pProperties->Count;
TRACE("Properties for Col %s/r/n",(LPCTSTR)pCols->GetItem(i)->Name);
for(long j=0;j<lp;j++){
TRACE("/rProperty %s:%s/r/n",g_GetValueString(pProperties->GetItem(j)->Name)
,g_GetValueString(pProperties->GetItem(j)->Value));
}
}
}
pCols->GetItem(_T("RecordID"))->Properties->GetItem(_T("Description"))->Value=_T("记录编号");//注释
pCols->GetItem(_T("RecordID"))->Properties->GetItem(_T("AutoIncrement"))->Value=true;//自动编号
pCols->GetItem(_T("Name"))->Properties->GetItem(_T("Jet OLEDB:Compressed UniCode Strings"))->Value=true;
pCols->GetItem(_T("Name"))->Properties->GetItem(_T("Description"))->Value=_T("姓名");
pCols->GetItem(_T("DateOfBirth"))->Properties->GetItem(_T("Description"))->Value=_T("出生日期");
pCols->GetItem(_T("OtherInfo"))->Properties->GetItem(_T("Jet OLEDB:Compressed UniCode Strings"))->Value=true;
pCols->GetItem(_T("OtherInfo"))->Properties->GetItem(_T("Description"))->Value=_T("其他信息");
pCatalog->Tables->Append(_variant_t ((IDispatch*)pTable));//添加表
pCatalog->Tables->Refresh();//刷新
pIndexNew.CreateInstance(_T("ADOX.Index"));
pIndexNew->Name = "RecordID";//索引名称
pIndexNew->Columns->Append("RecordID",ADOX::adInteger,0);//索引字段
pIndexNew->PutPrimaryKey(-1);//主索引
pIndexNew->PutUnique(-1);//唯一索引
pTable->Indexes->Append(_variant_t ((IDispatch*)pIndexNew));//创建索引
pIndexNew=NULL;
pCatalog->Tables->Refresh();//刷新
return TRUE;
}
catch(_com_error &e){
ESErrPrintProviderError(tempConnn);
ESErrPrintComError(e);
return FALSE;
}
catch(...){
}
return FALSE;
}
用ADOX 创建数据库
最新推荐文章于 2019-12-13 10:51:49 发布