How can I get the error message of sql server ?

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SQL-Server-2008R2

I want to get the error message of sql server.

C#

string expectedQuery = GenrerateQuery();
 
SqlDataAdapter ndaGlobalClass = new SqlDataAdapter(expectedQuery, conString);

After execute this query sql server can find any kind of error message if the query is not constructed properly or there is no column or database available for this query. How can i get this error meaasge from font end using C# code?

Can anyone help me by providing some code?

Posted 1-May-14 18:02pm

sachi Dash

Updated 1-May-14 18:03pm

v2

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2 solutions

Solution 2

If you would like to find syntax errors before executing query in real time, please use SQLParser[^] class.

Posted 1-May-14 20:06pm

Maciej Los

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sachi Dash 2-May-14 2:56am

If possible then give me an example code.

Maciej Los 2-May-14 3:08am

SQL Parser[^]

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DamithSL · Accepted Answer · 2014-05-01T18:12:00

Same as how you handle Exceptions. Use try catch block and display the Error message or meaningful custom message

C#

Try {
   // code here
}
catch (SqlException odbcEx) {
   // Handle more specific SqlException exception here.
}
catch (Exception ex) {
   // Handle generic ones here.
}

sample from MSDN[^]

C#

public static void ShowSqlException(string connectionString)
{
    string queryString = "EXECUTE NonExistantStoredProcedure";

    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        SqlCommand command = new SqlCommand(queryString, connection);
        try
        {
            command.Connection.Open();
            command.ExecuteNonQuery();
        }
        catch (SqlException ex)
        {
            DisplaySqlErrors(ex);
        }
    }
}

private static void DisplaySqlErrors(SqlException exception)
{
    for (int i = 0; i < exception.Errors.Count; i++)
    {
        Console.WriteLine("Index #" + i + "\n" +
            "Error: " + exception.Errors[i].ToString() + "\n");
    }
    Console.ReadLine();
}