SQL Server connection C++/ODBC Driver 17 for SQL Server - c++

Question

I´m having a problem dealing with the connection to sql server in c++. Actually i don t know where the problem come from. I took a look at my firewall open the port 1433/1434 - on sql configuration manager i also have enable for the remote connexion. It returns the error message:
SQL DRiver message:[Microsoft][ODBC Driver 17 for SQL Server]Named Pipes Provider: Could not open a connection to SQL Server [53].
SQLState08001.
Could you help me to solve this problem?
My code looks like this:
#pragma once
using namespace std;
#include "stdafx.h"
#include <iostream>
#include <ctime>
#include <list>
#include <sqlext.h> // main SQLAPI++ header
#include <sqltypes.h>
#include <Windows.h>
#include <sql.h>
#include <cstring>
#include <string>
void showSQLError(unsigned int handletype, const SQLHANDLE& handle)
{
SQLCHAR SQLState[1024];
SQLCHAR message[1024];
if (SQL_SUCCESS == SQLGetDiagRec(handletype, handle, 1, SQLState, NULL, message, 1024, NULL))
cout << "SQL DRiver message:" << message << "\nSQLState" << SQLState << "." << endl;
}
class Datapoint {
public:
time_t Date; string Name; double Value;
Datapoint() {
//default constructor to initialize Datapoint
;
}
Datapoint(time_t Dates, string Names, double Values)
{
Date = Dates;
Name = Names;
Value = Values;
}
static list<Datapoint> Timeseries(string Names)
{
list<Datapoint> data;
SQLHANDLE SQLEnvHandle = NULL;
SQLHANDLE SQLConnexionHandle = NULL;
SQLHANDLE SQLStatementHandle = NULL;
SQLRETURN retcSQLQuerystringode = 0;
int retcode;
// assigning value to string SQLQuerystring
string SQLQuerystring = "SELECT * FROM MDA..MarketData WHERE Name = '" + Names + "' order by Date Asc";
// declaring character array (+1 for null terminator)
char* SQLQuery = new char[SQLQuerystring.length() + 1];
// copying the contents of the string to char array
strcpy(SQLQuery, SQLQuerystring.c_str());
do {
// Allocate an environment handle
if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &SQLEnvHandle))
{
break;
}
// Set the ODBC version environment attribute
if (SQL_SUCCESS != SQLSetEnvAttr(SQLEnvHandle, SQL_ATTR_ODBC_VERSION, (SQLPOINTER)SQL_OV_ODBC3, 0))
{
break;
}
// Allocate a connection handle
if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_DBC, SQLEnvHandle, &SQLConnexionHandle))
{
break;
}
if (SQL_SUCCESS != SQLSetConnectAttr(SQLConnexionHandle, SQL_LOGIN_TIMEOUT, (SQLPOINTER)5, 0))
{
break;
}
SQLCHAR retConnString[1024];
switch (SQLDriverConnect(SQLConnexionHandle, NULL, (SQLCHAR*)"Driver={ODBC Driver 17 for SQL Server};Server=DESKTOP-FT3KNQR\MSSQLSERVER01;Database=MDA;UID=DESKTOP-FT3KNQR\mathi;", SQL_NTS, retConnString, 1024, NULL, SQL_DRIVER_NOPROMPT)) {
case SQL_SUCCESS:
break;
case SQL_SUCCESS_WITH_INFO:
break;
case SQL_NO_DATA_FOUND:
showSQLError(SQL_HANDLE_DBC, SQLConnexionHandle);
retcode = 1;
break;
case SQL_INVALID_HANDLE:
showSQLError(SQL_HANDLE_DBC, SQLConnexionHandle);
retcode = 1;
break;
case SQL_ERROR:
showSQLError(SQL_HANDLE_DBC, SQLConnexionHandle);
retcode = 1;
break;
default:
break;
}
if (retcode == -1)
{
break;
}
if (SQL_SUCCESS != SQLAllocHandle(SQL_HANDLE_STMT, SQLConnexionHandle, &SQLStatementHandle))
{
break;
}
if (SQL_SUCCESS != SQLExecDirect(SQLStatementHandle, (SQLCHAR*)SQLQuery, SQL_NTS))
{
showSQLError(SQL_HANDLE_STMT, SQLStatementHandle);
break;
}
else
{
while (SQLFetch(SQLStatementHandle) == SQL_SUCCESS)
{
time_t datefromdb;
float valuesfromdb;
char* namesfromdb = new char[256];
SQLGetData(SQLStatementHandle, 1, SQL_C_DEFAULT, &datefromdb, sizeof(datefromdb), NULL);
SQLGetData(SQLStatementHandle, 2, SQL_C_DEFAULT, &namesfromdb, sizeof(namesfromdb), NULL);
SQLGetData(SQLStatementHandle, 3, SQL_C_DEFAULT, &valuesfromdb, sizeof(valuesfromdb), NULL);
Datapoint datapointsql;
datapointsql.Date = datefromdb;
datapointsql.Name = namesfromdb;
datapointsql.Value = valuesfromdb;
data.push_back(datapointsql);
}
}
} while (FALSE);
// Free the statement handle
SQLFreeHandle(SQL_HANDLE_STMT, SQLStatementHandle);
// Disconnect from the SQL Server
SQLDisconnect(SQLStatementHandle);
// Free the connection and environment handles
SQLFreeHandle(SQL_HANDLE_DBC, SQLConnexionHandle);
SQLFreeHandle(SQL_HANDLE_ENV, SQLEnvHandle);
return data;
}
};
using namespace std;
#include "stdafx.h"
#include <iostream>
#include <ctime>
#include <list>
#include <sqlext.h> // main SQLAPI++ header
#include <sqltypes.h>
#include <Windows.h>
#include <sql.h>
#include <cstring>
#include <string>
#include "Class_Datapoint.h"
int main()
{
list<Datapoint> data = Datapoint::Timeseries("CCC");
return 0;
}
I took a look at my firewall open the port 1433/1434 - on sql configuration manager i also have enable for the remote connexion. The connexion with the database doesn t work.I am using a windows authentification without password. Server name:DESKTOP-FT3KNQR\MSSQLSERVER01 / User name:DESKTOP-FT3KNQR\mathi/ without password.