Hi Roger Where can I learn how to characterize my database? I work read-only, single connection. I have 13 tables, of which 2 are huge, 2 are medium and the rest are very small. My huge tables have 3 columns: numeric, numeric and varchar with millions of rows. I keep an index on the numeric columns.
Does that bring up any column ordering suggestion? Thanks Rinat -----Original Message----- From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Roger Binns Sent: Wednesday, May 28, 2014 12:06 PM To: General Discussion of SQLite Database Subject: Re: [sqlite] Reading compressed database files -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 28/05/14 00:25, Hadashi, Rinat wrote: > My databases are very big (almost 100 GB). I am looking for a > compression solution. > > Did anyone have an experience with reading a compressed database? It would be helpful if you characterise your data and queries. For example if the size is due to blobs, then careful ordering of columns, or moving them to separate tables will likely be very useful. You can get compression external to SQLite by using a compressing filesystem like NTFS or btrfs (make sure to pick an appropriate page size), or by internal compression with cerod: http://www.hwaci.com/sw/sqlite/cerod.html Roger -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlOFpvsACgkQmOOfHg372QRSRACfcDqTprcD//n9yYXcGPl9yQfo sTIAoLkIaQHR4JAwk1LbuRzCyQsx/5aN =tYeT -----END PGP SIGNATURE----- _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
