VC++ CLR connect to SQL Azure Database

This post shows you how to connect to SQL Azure database using VC++ CLR. In previous post https://chanmingman.wordpress.com/2012/01/06/vc-clr-ms-sql-server-access/, the code connect to on-premise database. Here we connect it to SQL Azure database. What you need to do is to get the connection string from Azure Portal.


#include “pch.h”

using namespace System;

#using <mscorlib.dll>

using namespace System::Collections;

#using “System.dll”

#using “System.Data.dll”

#using “System.Transactions.dll”

#using “System.EnterpriseServices.dll”

#using “System.Xml.dll”

using namespace System::ComponentModel;

using namespace System::Data;

using namespace System::Data::SqlClient;

int main(array<System::String ^> ^args)

{

    // Connect to the SQL Database and issue a SELECT command all in one statement

    String ^query = “SELECT * FROM Categories”;

    // build connect string with the userid and password

    String ^connectString = String::Format(“Server=tcp:sqlAzure.database.windows.net,1433;Initial Catalog=SSISDB;Persist Security Info=False;User ID=username;Password=password;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;”);

    SqlConnection^ sqlconn = gcnew
SqlConnection(connectString);

    sqlconn->Open();

    SqlCommand ^sqlCommand = gcnew
SqlCommand(query, sqlconn);

    // Create a SqlDataReader to enumerate the result of executing the command against the database.

    SqlDataReader ^dataReader = sqlCommand->ExecuteReader();

    // Find number of columns in result

    int numCols = dataReader->FieldCount;

    // Display number of columns returned from query

    Console::Write(“No.of columns : “);

    Console::WriteLine(numCols);

    // Display the data, separated by tabs

    while (dataReader->Read())

    {

        for (int c = 0; c < numCols – 1; c++)

        {

            Console::Write(dataReader[c]);

            Console::Write(“\t”);

        }

        Console::WriteLine(“”);

    }

    return 0;

}

The result as below.

About chanmingman

Since March 2011 Microsoft Live Spaces migrated to Wordpress (http://www.pcworld.com/article/206455/Microsoft_Live_Spaces_Moves_to_WordPress_An_FAQ.html) till now, I have is over 1 million viewers. This blog is about more than 50% telling you how to resolve error messages, especial for Microsoft products. The blog also has a lot of guidance teaching you how to get stated certain Microsoft technologies. The blog also uses as a help to keep my memory. The blog is never meant to give people consulting services or silver bullet solutions. It is a contribution to the community. Thanks for your support over the years. Ming Man is Microsoft MVP since year 2006. He is a software development manager for a multinational company. With 25 years of experience in the IT field, he has developed system using Clipper, COBOL, VB5, VB6, VB.NET, Java and C #. He has been using Visual Studio (.NET) since the Beta back in year 2000. He and the team have developed many projects using .NET platform such as SCM, and HR based applications. He is familiar with the N-Tier design of business application and is also an expert with database experience in MS SQL, Oracle and AS 400.
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