IS NULL operator checks whether a variable value is null : IS « PL SQL « Oracle PL / SQL






  1. Oracle PL / SQL
  2. PL SQL
  3. IS

IS NULL operator checks whether a variable value is null

 

SQL>
SQL>  DECLARE
  2     var BOOLEAN;
  3    BEGIN
  4     IF var IS NULL THEN
  5      dbms_output.put_line('It is null.');
  6     END IF;
  7    END;
  8    /
It is null.

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL>








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