Yes, Day of the Dead is celebrated in Chile. Though it is not a  time to necessarily dress up in a skeleton costume and party-it  is a much more somber holiday. Most busin â¦ esses will be closes and  many people will be at the cemeteries. Not in a sad way either, but  in a happy one.
NULL Statement The NULL statement is a no-op (no operation); it passes control to the next statement without doing anything. In the body of an IF-THEN clause, a loop, or a procedure, the NULL statement serves as a placeholder. For more information, see Using the NULL Statement. Syntax
In such cases, you should use PL/SQL WHILE LOOP statement. A condition is a Boolean variable or expression that evaluates to a Boolean value of TRUE, FALSE or . The condition is checked at the beginning of each iteration. If the condition evaluates to TRUE, the sequence_of_statements is executed.