Answers for "executescalar in c#"

executescalar in sql server

DECLARE @IsDuplicate BIT
  	    
		IF EXISTS(SELECT * FROM dbo.ListData WHERE [description] = @description AND [dataTypeId] = @dataTypeId) -- Checking if duplicate name
					SET @IsDuplicate = 1

	    ELSE
			BEGIN
            
            END

mysql executeScalar only if successful

MySqlCommand cmd = new MySqlCommand(connection);
cmd.CommandText = sqlstring;
Object userNameObj = cmd.ExecuteScalar();

if (userNameObj != null)
  string returnedName = userNameObj.ToString();
 ...