1d958ef229
Co-authored-by: Amélie Renard <44666826+amelie-renard-sonarsource@users.noreply.github.com>
57 lines
1.1 KiB
Plaintext
57 lines
1.1 KiB
Plaintext
== Why is this an issue?
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Having all branches of a `CASE`, `IF` or `IIF` chain with the same implementation indicates a problem.
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In the following code:
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[source,sql]
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----
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IF @x < 25 -- Noncompliant
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PRINT 'A'
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ELSE IF @x < 10
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PRINT 'A'
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ELSE
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PRINT 'A'
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SELECT
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CASE col1 -- Noncompliant
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WHEN 1 THEN 'A'
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WHEN 2 THEN 'A'
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ELSE 'A'
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END,
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IIF(col1 < 25, 'A', 'A') -- Noncompliant
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FROM table1
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----
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Either there is a copy-paste error that needs fixing or an unnecessary `CASE`, `IF`, or `IIF` chain that needs removing.
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=== Exceptions
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This rule does not apply to `IF` or `CASE` chains without `ELSE` clauses.
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[source,sql]
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----
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IF @x < 25 -- no issue, this could have been done on purpose to make the code more readable
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PRINT 'A'
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ELSE IF @x > 10
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PRINT 'A'
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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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include::../highlighting.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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