RE: [sqlite] Slow query on one machine
I can't do anything like that as it is a machine of a customer and I have no access to it. Just wondering what possibly could explain such a difference. The relevant thing is that are load of queries coming after this and they are all fine. So it specific to that particular table at that particular point on that particular machine, all else behaves normal. RBS -Original Message- From: Jay Sprenkle [mailto:[EMAIL PROTECTED] Sent: 19 January 2008 14:12 To: sqlite-users@sqlite.org Subject: Re: [sqlite] Slow query on one machine On Jan 18, 2008 3:32 PM, RB Smissaert <[EMAIL PROTECTED]> wrote: > The application > that runs this is exactly the same on both machines. The slow machine is > actually slightly slower specification wise, but that can't explain the huge > differences in timings. > Have you run spinrite ( a disk diagnostic/maintenance program ) on the slow machine? - To unsubscribe, send email to [EMAIL PROTECTED] - - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Slow query on one machine
On Jan 18, 2008 3:32 PM, RB Smissaert <[EMAIL PROTECTED]> wrote: > The application > that runs this is exactly the same on both machines. The slow machine is > actually slightly slower specification wise, but that can't explain the huge > differences in timings. > Have you run spinrite ( a disk diagnostic/maintenance program ) on the slow machine? - To unsubscribe, send email to [EMAIL PROTECTED] -
[sqlite] Slow query on one machine
Trying to figure out why (with one particular customer) some queries have very different timings on one machine compared to another machine. It has to do with updating one particular SQLite table with more recent data from an Interbase table. I give the database (S for SQLite and I for Interbase), SQL query and time in seconds of slow machine and fast machine: DB|Query|slow PC|fast PC - S|SELECT MAX(ENTRY_ID) FROM ENTRY_ATTRIBUTES|0.26|8.46 I|SELECT ENTRY_ID, ATTRIBUTE_TYPE, TYPE_SPECIFIC_INFO, NUMERIC_VALUE FROM ENTRY_ATTRIBUTE WHERE ENTRY_ID > 15085882|0.05|0.07 S|INSERT OR IGNORE INTO ENTRY_ATTRIBUTES VALUES(?,?,?,?)|7.51|0.14 S|analyze ENTRY_ATTRIBUTES|431.96|0.03 All I can think of is that somehow there is something wrong with the SQLite table ENTRY_ATTRIBUTES on the slow machine and I suggested dropping that table and making a new one, but that made no difference. The application that runs this is exactly the same on both machines. The slow machine is actually slightly slower specification wise, but that can't explain the huge differences in timings. I think the only way for me to find is to get hold of that SQLite file, but for now having some trouble getting hold of this file. Any ideas? RBS - To unsubscribe, send email to [EMAIL PROTECTED] -
