58 lines
1.1 KiB
Plaintext
58 lines
1.1 KiB
Plaintext
== Why is this an issue?
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This rule applies whenever an ``++IF++`` statement is followed by one or
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more ``++ELSEIF++`` statements; the final ``++ELSEIF++`` should be followed by an ``++ELSE++`` statement.
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The requirement for a final ``++ELSE++`` statement is defensive programming.
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The ``++ELSE++`` statement should either take appropriate action or contain
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a suitable comment as to why no action is taken. This is consistent with the
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requirement to have a final ``++ELSE++`` clause in a ``++CASE++``
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statement.
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=== Noncompliant code example
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[source,sql]
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----
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IF my_variable = 0 THEN
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do_something;
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ELSIF my_variable = 1 THEN
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do_something_else;
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END IF;
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----
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=== Compliant solution
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[source,sql]
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----
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IF my_variable = 0 THEN
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do_something;
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ELSIF my_variable = 1 THEN
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do_something_else;
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ELSE
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-- Nothing has to be done.
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NULL;
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END IF;
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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include::../message.adoc[]
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'''
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== Comments And Links
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(visible only on this page)
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include::../comments-and-links.adoc[]
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endif::env-github,rspecator-view[]
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