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Readded small note about parameters

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Original file line number	Diff line number	Diff line change
@@ -742,6 +742,12 @@ The ``QueryBuilder`` object contains every method necessary to build your
`742`	`742`	query. By calling the ``getQuery()`` method, the query builder returns a
`743`	`743`	normal ``Query`` object, which can be used to get the result of the query.
`744`	`744`
	`745`	`+..tip::`
	`746`	`+`
	`747`	+ Take note of the ``setParameter()`` method. When working with Doctrine,
	`748`	`+ it's always a good idea to set any external values as "placeholders"`
	`749`	+ (``:price`` in the example above) as it prevents SQL injection attacks.
	`750`	`+`
`745`	`751`	The ``getResult()`` method returns an array of results. To get only one
`746`	`752`	result, you can use ``getSingleResult()`` (which throws exception there is no
`747`	`753`	result) or ``getOneOrNullResult()``::

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