Transact-SQL-like Error Handling in the Watcom-SQL Dialect

You can make a Watcom-SQL dialect procedure handle errors in a Transact-SQL-like manner.

Supply the ON EXCEPTION RESUME clause to the CREATE PROCEDURE statement:

CREATE PROCEDURE sample_proc()
ON EXCEPTION RESUME
BEGIN
	...
END 

The presence of an ON EXCEPTION RESUME clause prevents explicit exception handling code from being executed, so avoid using these two clauses together.