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Fix (mis)information about NULLIF() SQL function.

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Thanks to Tom Lane for pointing it out.
This commit is contained in:
Thomas G. Lockhart 1999-09-29 05:20:20 +00:00
parent f7e12db734
commit fe2f878173
1 changed files with 4 additions and 4 deletions
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8
doc/src/sgml/func.sgml
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@ -45,10 +45,10 @@
class="parameter">c2</replaceable> + 5, 0) </entry>
</row>
<row>
<entry> IFNULL(<replaceable class="parameter">input</replaceable>,<replaceable class="parameter">non-NULL substitute</replaceable>) </entry>
<entry> non-NULL </entry>
<entry> return second argument if first is NULL </entry>
<entry> IFNULL(<replaceable class="parameter">c1</replaceable>, 'N/A')</entry>
<entry> NULLIF(<replaceable class="parameter">input</replaceable>,<replaceable class="parameter">value</replaceable>) </entry>
<entry> <replaceable class="parameter">input</replaceable> or NULL </entry>
<entry> return NULL if <replaceable class="parameter">input</replaceable> = <replaceable class="parameter">value</replaceable> </entry>
<entry> NULLIF(<replaceable class="parameter">c1</replaceable>, 'N/A')</entry>
</row>
<row>
<entry> CASE WHEN <replaceable class="parameter">expr</replaceable> THEN <replaceable class="parameter">expr</replaceable> [...] ELSE <replaceable class="parameter">expr</replaceable> END </entry>