RE: [sqlite] WHERE SomeColumn IN (@SQLiteParameter) ???

2008-01-15 Thread Samuel R. Neff
Since you need notification of data so quickly, perhaps it would be better
to use some type of notification table that indicates when new data is
available and a trigger to populate this table.  Then you can query SELECT
MAX(ID) FROM Notifications which is ridiculously fast.

HTH,

Sam


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-Original Message-
From: idkfa [mailto:[EMAIL PROTECTED] 
Sent: Monday, January 14, 2008 3:45 PM
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] WHERE SomeColumn IN (@SQLiteParameter) ???


That definitely worked as you described, thank you.  However, performance is
key for us.  We'll need to fire off a query like that at a steady 15hz
heartbeat (a WHERE NOT IN actually).  Could you suggest a faster equivalent
to accomplish such a task?

What about dumping the string list into a #TempTable and then firing off a
SELECT WHERE NOT IN (SELECT value FROM #TempTable)?

R

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Re: [sqlite] WHERE SomeColumn IN (@SQLiteParameter) ???

2008-01-14 Thread idkfa

That definitely worked as you described, thank you.  However, performance is
key for us.  We'll need to fire off a query like that at a steady 15hz
heartbeat (a WHERE NOT IN actually).  Could you suggest a faster equivalent
to accomplish such a task?

What about dumping the string list into a #TempTable and then firing off a
SELECT WHERE NOT IN (SELECT value FROM #TempTable)?

R

-- 
View this message in context: 
http://www.nabble.com/WHERE-SomeColumn-IN-%28%40SQLiteParameter%29-tp14808093p14813594.html
Sent from the SQLite mailing list archive at Nabble.com.


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