Connect to an External Database from X++ Code

Create a DSN

To create a Data Source Name (DSN) go to Administrative Tools > Data Sources (ODBC).

Create the DSN on the tier where the X++ code will call the DSN from. This will be either on the client computer or on the AOS computer.

X++ Code Example with ODBC

// X++ job
static void TestOdbcJob()
{
    LoginProperty loginProperty;
    OdbcConnection odbcConnection;
    Statement statement;
    ResultSet resultSet;
    str sql, criteria;
    SqlStatementExecutePermission perm;
    ;

    // Set the information on the ODBC.
    loginProperty = new LoginProperty();
    loginProperty.setDSN("dsnName");
    loginProperty.setDatabase("databaseName");

    //Create a connection to external database.
    odbcConnection = new OdbcConnection(loginProperty);

    if (odbcConnection)
    {
        sql = "SELECT * FROM MYTABLE WHERE FIELD = "
            + criteria
            + " ORDER BY FIELD1, FIELD2 ASC ;";

        //Assert permission for executing the sql string.
        perm = new SqlStatementExecutePermission(sql);
        perm.assert();

        //Prepare the sql statement.
        statement = odbcConnection.createStatement();
        resultSet = statement.executeQuery(sql);

        //Cause the sql statement to run,
        //then loop through each row in the result.
        while (resultSet.next())
        {
            //It is not possible to get field 3 and then 1.
            //Always get fields in numerical order, such as 1 then 2 the 3 etc.
            print resultSet.getString(1);
            print resultSet.getString(3);
        }

        //Close the connection.
        resultSet.close();
        statement.close();
    }
    else
    {
        error("Failed to log on to the database through ODBC.");
    }
}