Hello, IF you create index Primary key it automatically index the Information, but if not you can always create a separate index for your field(s). When Index are present at time of insertion or update index will also get update to include information. That do not REindex complete table. So performance won't be an issue if you use Index. But if you don't use index the performace will be WAY TOO bad and every request can take lot of time. I did about 1 M row update in 9minute with indexes and other stuffs. But without index same code took 30 minute to update only 40K records.
Sumit -----Original Message----- From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of LiranR Sent: 24 August 2011 14:11 To: sqlite-users@sqlite.org Subject: [sqlite] Re indexing (if such a thing exist) performance Hi all!! In my project, i insert rows, one by one, to a fixed size table (1000000 rows for example). When i reach the end of the table, i enter data to the first row and then the seocond and so on. If i have indexes (primary keys), lets say from 1 to 1000000, and now i reached the end, and update the first row with index 1001, does it have to reindex? How much time will it take to reindex? because i will update the second row later with index 1002 and i have to reindex it too, if its true, and i am worry about the performance of such a thing. -- View this message in context: http://old.nabble.com/Reindexing-%28if-such-a-thing-exist%29-performance-tp3 2324832p32324832.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 _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
