rspec/rules/S2527/rule.adoc

== Why is this an issue?

include::description.adoc[]

=== Noncompliant code example

[source,text]
----
SET SERVEROUTPUT ON

DECLARE
  name VARCHAR2(42) := ''; /* This is equivalent to name := NULL; */
BEGIN
  IF name = '' THEN /* Noncompliant; equivalent to name = NULL & therefore always FALSE*/
    DBMS_OUTPUT.PUT_LINE('True'); /* Unreachable */
  ELSE
    DBMS_OUTPUT.PUT_LINE('False');
  END IF;
END;
/
----


=== Compliant solution

[source,text]
----
SET SERVEROUTPUT ON

DECLARE
  name VARCHAR2(42) := ''; /* This is equivalent to name := NULL; */
BEGIN
  IF name IS NULL THEN /* Compliant */
    DBMS_OUTPUT.PUT_LINE('True');
  ELSE
    DBMS_OUTPUT.PUT_LINE('False');
  END IF;
END;
/
----