What are the types of error handling in mysql stored procedures?

MySQL stored procedure error handling provides the following types: BEGIN...END block: When an error occurs, the transaction is rolled back and subsequent statements are not executed. ERROR statement: Manually raise an error, specifying the error code and message. SIGNAL statement: Raise an error from a custom error handling routine, sending an error code and message. HANDLER statement: Defines an error handling routine for a specific error code and can perform custom actions. WHENEVER statement: defines how to handle errors when no error handling method is specified.

MySQL stored procedure error handling types

MySQL stored procedure error handling mechanism provides several types for Handle errors that occur during the execution of a stored procedure:

BEGIN...END block

• Use BEGIN...END blocks to group statements together and Catch errors in it.
• If an error occurs within the block, MySQL will roll back the transaction and subsequent statements within the block will not be executed.

ERROR Statement

• The ERROR statement allows errors to be raised manually and an error code and message to be specified.
• Error codes and messages can be used outside stored procedures.

SIGNAL Statement

• The SIGNAL statement is similar to ERROR, but it also allows errors to be raised from a custom error handling routine.
• Custom processing routines can use SIGNAL to send error codes and messages back to the stored procedure.

HANDLER Statement

• The HANDLER statement is used to define an error handling routine that handles specific error codes.
• It can be used to perform custom actions, log errors, or re-raise errors.

WHENEVER Statement

• The WHENEVER statement defines how to handle errors if no error handling method is specified.
• WHENEVER can be set to continue execution, re-raise an error, or execute a custom processing routine.

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