Four different ways to select a random row in MySQL explained and compared in terms of speed.

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Let's say you want to build a form where there are several nested fieldsets that are accessed with JavaScript tabs. Displaying such a form cannot be achieved by echoing the form object. The logical way here would be iterating through the field schema and outputting rows one by one. The problem is that Symfony so far does not provide built in iteration mechanism for form objects.

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Four different ways to select a random row in MySQL explained and compared in terms of speed.