$IF $$plsql_optimize_level : PLSQL_OPTIMIZE_LEVEL « SQL PLUS Session Environment « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. SQL PLUS Session Environment
3. PLSQL_OPTIMIZE_LEVEL

SQL>
SQL> CREATE OR REPLACE PROCEDURE check_expressions
  2  IS
  3  BEGIN
  4  $IF $$plsql_optimize_level != 1 OR $$plsql_optimize_level = 2
  5  $THEN
  6     -- Placeholder
  7  $END
  8     NULL;
  9  END check_expressions;
 10  /

Procedure created.