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How to fix _pRecordset doesn't open ADO C++
What are the differences between a pointer variable and a reference variable in C++?How can I prevent SQL injection in PHP?How to check if a column exists in a SQL Server table?How to concatenate text from multiple rows into a single text string in SQL server?How do I iterate over the words of a string?How can I profile C++ code running on Linux?The Definitive C++ Book Guide and ListWhat is the “-->” operator in C++?How do I UPDATE from a SELECT in SQL Server?How to Delete using INNER JOIN with SQL Server?
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i am trying to connect my C++ project to SQL Server using ADO it goes well before pRecordset->Open(...);
and error encounter it says Microsoft C++ exception: _com_error at memory location'.
i tried to do such things pRecordset->Open(SelectQuery, _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
but in the debug window it shows _hr: DB_E_NOTABLE Table Does not exist.
i also tried to do such things pRecordset->Open("TestTB", _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdTable);
but it doesn't help.
Is this Connection problem? it would be vary usefull for me if you give me some advice. Thank you in advance.
_ConnectionPtr pConnection;
_CommandPtr pCommand;
_RecordsetPtr pRecordset;
_bstr_t strCon("ADOSQL"); //"Provider=sqloledb; Data Source=...\SQLEXPRESS;Initial Catalog=TestDB;Integrated Security=True");
_bstr_t SelectQuery("Select * from TestTB");
HRESULT hr = S_OK;
CoInitialize(NULL);
//Create the Connection pointer
hr = pConnection.CreateInstance(__uuidof(Connection));
if (FAILED(hr))
printf("Error instantiating Connection objectn");
//Open the SQL Server connection
hr = pConnection->Open(strCon, "", "", adConnectUnspecified);
if (FAILED(hr))
printf("Error Opening Database object using ADO _ConnectionPtr n");
hr = pCommand.CreateInstance(__uuidof(Command));
if (FAILED(hr))
printf("Error creating command instance[]");
pCommand->ActiveConnection = pConnection;
pCommand->CommandText = SelectQuery;
pCommand->CommandType = adCmdText;
hr = pRecordset.CreateInstance(__uuidof(Recordset));
if (FAILED(hr))
printf("Failed creating record set instancen");
//CString SQLQuery = "Select * From TestTB";
pRecordset->Open(_variant_t(pCommand), _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
c++ sql sql-server sql-server-2008 ado
add a comment |
i am trying to connect my C++ project to SQL Server using ADO it goes well before pRecordset->Open(...);
and error encounter it says Microsoft C++ exception: _com_error at memory location'.
i tried to do such things pRecordset->Open(SelectQuery, _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
but in the debug window it shows _hr: DB_E_NOTABLE Table Does not exist.
i also tried to do such things pRecordset->Open("TestTB", _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdTable);
but it doesn't help.
Is this Connection problem? it would be vary usefull for me if you give me some advice. Thank you in advance.
_ConnectionPtr pConnection;
_CommandPtr pCommand;
_RecordsetPtr pRecordset;
_bstr_t strCon("ADOSQL"); //"Provider=sqloledb; Data Source=...\SQLEXPRESS;Initial Catalog=TestDB;Integrated Security=True");
_bstr_t SelectQuery("Select * from TestTB");
HRESULT hr = S_OK;
CoInitialize(NULL);
//Create the Connection pointer
hr = pConnection.CreateInstance(__uuidof(Connection));
if (FAILED(hr))
printf("Error instantiating Connection objectn");
//Open the SQL Server connection
hr = pConnection->Open(strCon, "", "", adConnectUnspecified);
if (FAILED(hr))
printf("Error Opening Database object using ADO _ConnectionPtr n");
hr = pCommand.CreateInstance(__uuidof(Command));
if (FAILED(hr))
printf("Error creating command instance[]");
pCommand->ActiveConnection = pConnection;
pCommand->CommandText = SelectQuery;
pCommand->CommandType = adCmdText;
hr = pRecordset.CreateInstance(__uuidof(Recordset));
if (FAILED(hr))
printf("Failed creating record set instancen");
//CString SQLQuery = "Select * From TestTB";
pRecordset->Open(_variant_t(pCommand), _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
c++ sql sql-server sql-server-2008 ado
add a comment |
i am trying to connect my C++ project to SQL Server using ADO it goes well before pRecordset->Open(...);
and error encounter it says Microsoft C++ exception: _com_error at memory location'.
i tried to do such things pRecordset->Open(SelectQuery, _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
but in the debug window it shows _hr: DB_E_NOTABLE Table Does not exist.
i also tried to do such things pRecordset->Open("TestTB", _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdTable);
but it doesn't help.
Is this Connection problem? it would be vary usefull for me if you give me some advice. Thank you in advance.
_ConnectionPtr pConnection;
_CommandPtr pCommand;
_RecordsetPtr pRecordset;
_bstr_t strCon("ADOSQL"); //"Provider=sqloledb; Data Source=...\SQLEXPRESS;Initial Catalog=TestDB;Integrated Security=True");
_bstr_t SelectQuery("Select * from TestTB");
HRESULT hr = S_OK;
CoInitialize(NULL);
//Create the Connection pointer
hr = pConnection.CreateInstance(__uuidof(Connection));
if (FAILED(hr))
printf("Error instantiating Connection objectn");
//Open the SQL Server connection
hr = pConnection->Open(strCon, "", "", adConnectUnspecified);
if (FAILED(hr))
printf("Error Opening Database object using ADO _ConnectionPtr n");
hr = pCommand.CreateInstance(__uuidof(Command));
if (FAILED(hr))
printf("Error creating command instance[]");
pCommand->ActiveConnection = pConnection;
pCommand->CommandText = SelectQuery;
pCommand->CommandType = adCmdText;
hr = pRecordset.CreateInstance(__uuidof(Recordset));
if (FAILED(hr))
printf("Failed creating record set instancen");
//CString SQLQuery = "Select * From TestTB";
pRecordset->Open(_variant_t(pCommand), _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
c++ sql sql-server sql-server-2008 ado
i am trying to connect my C++ project to SQL Server using ADO it goes well before pRecordset->Open(...);
and error encounter it says Microsoft C++ exception: _com_error at memory location'.
i tried to do such things pRecordset->Open(SelectQuery, _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
but in the debug window it shows _hr: DB_E_NOTABLE Table Does not exist.
i also tried to do such things pRecordset->Open("TestTB", _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdTable);
but it doesn't help.
Is this Connection problem? it would be vary usefull for me if you give me some advice. Thank you in advance.
_ConnectionPtr pConnection;
_CommandPtr pCommand;
_RecordsetPtr pRecordset;
_bstr_t strCon("ADOSQL"); //"Provider=sqloledb; Data Source=...\SQLEXPRESS;Initial Catalog=TestDB;Integrated Security=True");
_bstr_t SelectQuery("Select * from TestTB");
HRESULT hr = S_OK;
CoInitialize(NULL);
//Create the Connection pointer
hr = pConnection.CreateInstance(__uuidof(Connection));
if (FAILED(hr))
printf("Error instantiating Connection objectn");
//Open the SQL Server connection
hr = pConnection->Open(strCon, "", "", adConnectUnspecified);
if (FAILED(hr))
printf("Error Opening Database object using ADO _ConnectionPtr n");
hr = pCommand.CreateInstance(__uuidof(Command));
if (FAILED(hr))
printf("Error creating command instance[]");
pCommand->ActiveConnection = pConnection;
pCommand->CommandText = SelectQuery;
pCommand->CommandType = adCmdText;
hr = pRecordset.CreateInstance(__uuidof(Recordset));
if (FAILED(hr))
printf("Failed creating record set instancen");
//CString SQLQuery = "Select * From TestTB";
pRecordset->Open(_variant_t(pCommand), _variant_t(pConnection, true),adOpenForwardOnly, adLockReadOnly, adCmdText);
c++ sql sql-server sql-server-2008 ado
c++ sql sql-server sql-server-2008 ado
edited Mar 26 at 12:39
Giorgi Gogenia
asked Mar 26 at 12:26
Giorgi GogeniaGiorgi Gogenia
35 bronze badges
35 bronze badges
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