rspec/rules/S126/plsql/rule.adoc

This rule applies whenever an ``IF`` statement is followed by one or 
more ``ELSEIF`` statements; the final ``ELSEIF`` should be followed by an ``ELSE`` statement.

The requirement for a final ``ELSE`` statement is defensive programming. 
The ``ELSE`` statement should either take appropriate action or contain 
a suitable comment as to why no action is taken. This is consistent with the 
requirement to have a final ``ELSE`` clause in a ``CASE``
statement. 

== Noncompliant Code Example

----
IF my_variable = 0 THEN
  do_something;
ELSIF my_variable = 1 THEN
  do_something_else;
END IF;
----

== Compliant Solution

----
IF my_variable = 0 THEN
  do_something;
ELSIF my_variable = 1 THEN
  do_something_else;
ELSE
  -- Nothing has to be done.
  NULL;
END IF;
----

include::../see.adoc[]