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Numeric Function Issue Mysql


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I am just wondering why CEILING(10*RAND()) is giving more than one value sometimes and no values at other times when it is combined with the WHERE clause.



On the other hand, if it is just used with SELECT CEILING(10*RAND()); it consistently yields only one value between one and ten.



I've copied an image below with some MySQL executions to better illustrate what I mean.



Any ideas why this is? [please tell me if this question is not clear]


Why do I have to limit the query to 1 --> should it not be only one value returned anyways?


Edited by Stephenius
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