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 SEQUENCE (GENERATOR)COLLATION 

DROP EXCEPTION

Drops a custom exception

Available in

DSQL, ESQL

Syntax
DROP EXCEPTION exception_name
Table 1. DROP EXCEPTION Statement Parameter
Parameter Description

exception_name

Exception name

The statement DROP EXCEPTION is used to delete an exception.Any dependencies on the exception will cause the statement to fail, and the exception will not be deleted.

Who Can Drop an Exception

The DROP EXCEPTION statement can be executed by:

  • Administrators

  • The owner of the exception

  • Users with the DROP ANY EXCEPTION privilege

DROP EXCEPTION Examples

Dropping exception E_LARGE_VALUE
DROP EXCEPTION E_LARGE_VALUE;
See also

[fblangref50-ddl-exception-create], [fblangref50-ddl-exception-recreate]

RECREATE EXCEPTION

Drops a custom exception if it exists, and creates a custom exception

Available in

DSQL

Syntax
RECREATE EXCEPTION exception_name '<message>'

!! See syntax of CREATE EXCEPTION for further rules !!

The statement RECREATE EXCEPTION creates a new exception for use in PSQL modules.If an exception with the same name exists already, the RECREATE EXCEPTION statement will try to drop it and create a new one.If there are any dependencies on the existing exception, the attempted deletion fails and RECREATE EXCEPTION is not executed.

RECREATE EXCEPTION Example

Recreating the E_LARGE_VALUE exception
RECREATE EXCEPTION E_LARGE_VALUE
  'The value exceeds its limit';
See also

[fblangref50-ddl-exception-create], [fblangref50-ddl-exception-drop], [fblangref50-ddl-exception-crtalter]