What is error handling in stored procedure?

What is error handling in stored procedure?

For example, when a TRY block executes a stored procedure and an error occurs in the stored procedure, the error can be handled in the following ways: When the CATCH block code finishes, control is passed back to the statement immediately after the EXECUTE statement that called the stored procedure.

How does MySQL handle errors in stored procedure?

MySQL Error Handling in Stored Procedures

1. CONTINUE : the execution of the enclosing code block ( BEGIN … END ) continues.
2. EXIT : the execution of the enclosing code block, where the handler is declared, terminates.

What is diff between function and procedure?

The function must return a value but in Stored Procedure it is optional. Even a procedure can return zero or n values. Functions can have only input parameters for it whereas Procedures can have input or output parameters. Functions can be called from Procedure whereas Procedures cannot be called from a Function.

How to implement error handling in your stored procedures?

Describe how to implement error handling in your stored procedures. Code volume and complexity: Because a stored procedure generally consists of many Transact-SQL statements, there is a very real possibility that an error will occur. Also, the more complex a Transact-SQL statement gets, the more chance there is for error.

Which is an example of error handling in SQL?

Handling errors is nothing more than detecting that an error occurred and dealing with it in some way. For example, you might not care that an error occurred, and processing can continue. On the other hand, if an error occurs, especially at a given point in the stored procedure, you must abort because continuing processing would yield invalid data.

Why are stored procedures compiled on the server?

Code volume and complexity: Because a stored procedure generally consists of many Transact-SQL statements, there is a very real possibility that an error will occur. Also, the more complex a Transact-SQL statement gets, the more chance there is for error. Location: Stored procedures are compiled on the server.

What should I know about logging and error handling?

Improvements can no doubt be made and circumstances may dictate other specifics that I have not covered. Consider this a foundation for developing your own logging and error trapping standards, in the event that you don’t already have them. When I do logging, I use a permanent user-defined table that is common for all batch jobs within a database.