CollectionFind::having
PHP function
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Set condition for aggregate functions
Description
mysql_xdevapi\CollectionFind::having(string $sort_expr): mysql_xdevapi\CollectionFind
This function can be used after the 'field' operation in order to make a selection on the documents to extract.
Parameters
sort_exprThis must be a valid SQL expression, the use of aggreate functions is allowed
Return Values
CollectionFind object that can be used for further processing
Examples
mysql_xdevapi\CollectionFind::having() example
php
<?php
//Assuming $coll is a valid Collection object
//Find all the documents for which the 'age' is greather than 40,
//Only the columns 'name' and 'age' are returned in the Result object
$res = $coll->find()->fields(['name','age'])->having('age > 40')->execute();
?>