Re: [SQLObject] Select Single Random Record
SQLObject is a Python ORM.
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From: Hans G. S. <geo...@sc...> - 2012-04-18 19:23:27
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On Wed, Apr 18, 2012 at 08:46:47PM +0200, Petr Jakeš wrote: > *Get the list of valid IDs from the remote database using the raw SQL > command > something like:* > > con = connectionForURI("firebird://yourUserName:yourPassword@serverAddress > :3050/pat/to/database/database.file") > > validIDs= "SELECT ID FROM SONGS_TABLE where ......" > > returnedIDs = con.queryAll(validIDs) > > # you get the list of valid IDs, something like this: [(1,), (2,), (3,), > (4,), (5,), (6,), (7,), (8,), (9,), (11,)] > > *than:* > > import random > randomID = random.choice(returnedIDs)[0] > randomSong = SongsTable.get(randomID) Although this might work in the particular application, but it is hardly ideal to make two queries, nor to load a long list of IDs. Is there a way to do it with a single query? -- :-- Hans Georg |