PL SQL Oracle PLSQL

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  4. IN operator checks whether a variable value is in a set of comma-delimited values
SQL>
SQL>  BEGIN
  2    IF 1 IN (1,2,3) THEN
  3     dbms_output.put_line('In the set.');
  4    END IF;
  5   END;
  6   /
In the set.
PL/SQL procedure successfully completed.