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Fix old typo.
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@ -33409,7 +33409,7 @@ mysql> SELECT COUNT(DISTINCT results) FROM student;
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In MySQL you can get the number of distinct expression
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combinations that don't contain NULL by giving a list of expressions.
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In ANSI SQL you would have to do a concatenation of all expressions
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inside @code{CODE(DISTINCT ...)}.
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inside @code{COUNT(DISTINCT ...)}.
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@findex AVG()
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@item AVG(expr)
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