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Error Handling ? When and Where

Error Handling – When and Where At the root of error handling is the need to identify the severity of the problem. If the problem is significant, then it is important to notify someone when the error occurred. These requirements determine the technique necessary to handle an error. When an error occurs in an application process initiated by an end […]

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Database Error Handling

Database Error Handling SQL Server had a very simplistic error handling capability before SQL Server 2005 was released. The Global System Variable @@ERROR contained the value of any error occurring from the last statement. If no error it contained the value zero. For granular error trapping you had to test @@ERROR after each statement to assure all was well. SQL […]

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Multiton Design Pattern

(Richard Carr) The Multiton design pattern is an extension of the singleton pattern. It ensures that a limited number of instances of a class can exist by specifying a key for each instance and allowing only a single object to be created for each of those keys.