A NULL table, and a table with a NULL element. : Table of Varchar2 « PL SQL « Oracle PL / SQL






  1. Oracle PL / SQL
  2. PL SQL
  3. Table of Varchar2

A NULL table, and a table with a NULL element.

     
SQL>
SQL> DECLARE
  2    TYPE wordTableType IS TABLE OF VARCHAR2(50);
  3
  4    myTable1 wordTableType;
  5
  6    myTable2 wordTableType := wordTableType();
  7  BEGIN
  8    IF myTable1 IS NULL THEN
  9      DBMS_OUTPUT.PUT_LINE('myTable1 is NULL');
 10    ELSE
 11      DBMS_OUTPUT.PUT_LINE('myTable1 is not NULL');
 12    END IF;
 13
 14    IF myTable2 IS NULL THEN
 15      DBMS_OUTPUT.PUT_LINE('myTable2 is NULL');
 16    ELSE
 17      DBMS_OUTPUT.PUT_LINE('myTable2 is not NULL');
 18    END IF;
 19  END;
 20  /
myTable1 is NULL
myTable2 is not NULL

PL/SQL procedure successfully completed.

SQL>
SQL>








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