How to Fix MySQL Connection String Errors with 00webhost?

Troubleshooting MySQL Connection String Errors

When attempting to connect to a MySQL database hosted by 00webhost, errors can occur, particularly with the syntax of the connection string. This issue prompts the question of what to rectify in an incorrect connection string. Upon examination, the original connection string is presented:

string MyConString = "SERVER=mysql7.000webhost.com;" +
            "DATABASE=a455555_test;" +
            "UID=a455555_me;" +
            "PASSWORD=something;";

Upon further analysis, it becomes evident that the connection string does not fully conform to the expected format for MySQL connection strings. Specifically, the values for SERVER, DATABASE, UID, and PASSWORD should not be enclosed in quotation marks, as this can lead to parsing issues.

To resolve this issue and establish a correct connection, an alternative approach is recommended:

MySqlConnectionStringBuilder conn_string = new MySqlConnectionStringBuilder();
conn_string.Server = "mysql7.000webhost.com";
conn_string.UserID = "a455555_test";
conn_string.Password = "a455555_me";
conn_string.Database = "xxxxxxxx";

using (MySqlConnection conn = new MySqlConnection(conn_string.ToString()))
using (MySqlCommand cmd = conn.CreateCommand())
{
    //watch out for this SQL injection vulnerability below
    cmd.CommandText = string.Format("INSERT Test (lat, long) VALUES ({0},{1})",
                                    OSGconv.deciLat, OSGconv.deciLon);
    conn.Open();
    cmd.ExecuteNonQuery();
}

This approach uses the MySqlConnectionStringBuilder class to construct the connection string, ensuring proper formatting and avoiding the use of quotation marks. The subsequent code block connects to the database and executes an insert command. By implementing this revised approach, the connection issues can be resolved.

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