Defining the Indefinable: NULL : Variable Declare « PL SQL « Oracle PL / SQL






  1. Oracle PL / SQL
  2. PL SQL
  3. Variable Declare

Defining the Indefinable: NULL

 
SQL>
SQL>
SQL> declare
  2    value1 varchar2(100);
  3    value2 varchar2(100) := '';
  4    value3 varchar2(100) := null;
  5    value4 varchar2(100) default null;
  6  begin
  7    null;
  8  end;
  9  /

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL>








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