On 5/22/08, Farzana <[EMAIL PROTECTED]> wrote: > > Dear All, > > We have a table named Brand(data is not ordered by Branddescription) where > BrandDescription is one of the column and we tried to copy the Brand with > the same stucture with the table name Brand_temp and inserted the data > ordered by BrandDescription into a temp table as follows: > CREATE TABLE Brand_temp AS SELECT * FROM Brand WHERE 1=2 > insert into Brand_temp select * from brand order by branddescription > > Then we dropped the Brand table and renamed the temp table as brand like as > follows: > Drop table Brand > ALTER table brand_temp RENAME TO Brand > > When we tried with the original Brand Table in the application it is taking > around 15 minutes to fetch the record. But when we use the temp table it's > taking 11 secs to fetch the record. > We are not clear why there is a drastic change in fetching the records since > the structure remains the same and we are using the same application for > fetching the records from both the table. >
Do you, did you have an INDEX on TABLE Brand (BrandDescription)? If you did, it would get whacked when you DROP the TABLE Brand and ALTER RENAME Brand_Temp to Brand. Rebuild the INDEX and then see what the performance is like. > Kindly clarify us in this regard. > Thanks in advance. > > Regards, > Farzana. > > > > -- > View this message in context: > http://www.nabble.com/Fetching-records-from-Temp-table-tp17399000p17399000.html > Sent from the SQLite mailing list archive at Nabble.com. > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- Puneet Kishor http://punkish.eidesis.org/ Nelson Institute for Environmental Studies http://www.nelson.wisc.edu/ Open Source Geospatial Foundation (OSGeo) http://www.osgeo.org/ _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
