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33 lines
764 B
Plaintext
33 lines
764 B
Plaintext
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<h3>CASE statement</h3>
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A conditional statement that can be used to evaluate exissions and
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return a result.
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<h4>Syntax</h4>
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<pre>
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CASE
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WHEN <i>expression</i> THEN <i>result</i>
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[ ...n ]
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ELSE <i>result</i>
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END
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</pre>
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[ ] marks optional statements
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<h4>Arguments</h4>
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<!-- List args for functions here-->
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<i> WHEN expression</i> - The expression to evaluate. <br>
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<i> THEN result</i> - If <i>expression</i> evaluates True then <i>result</i> is returned. <br>
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<i> ELSE result</i> - If <i>expression</i> evaluates False then <i>result</i> is returned. <br>
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<h4>Example</h4>
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<!-- Show example of function.-->
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<pre>
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CASE
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WHEN <i>"column" IS NULL</i> THEN <i>'None'</i>
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ELSE <i>"column"</i>
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END
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</pre>
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