I am not sure if this is your issue exactly but I had similar problems when I started on SQLite a while ago. It turned out that my table definition was case-sensitive and therefore = was not working for me and I had to use LIKE. I changed my table definition with COLLATE NO CASE and the problem was solved, that is, = worked. Another problem in using LIKE was very slow search (as indices do not work with LIKE).
-----Original Message----- From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Simon Davies Sent: Friday, April 30, 2010 9:06 AM To: General Discussion of SQLite Database Subject: Re: [sqlite] WHERE = does not work On 30 April 2010 16:56, ecforu <ecforus...@gmail.com> wrote: > this was my first thought so I did a dump to a file and looked at in hex - > there were no extra characters. I even tried looking at the db file with a > hex editor and I could see the PSM text and no extra characters around it > (except the NULLs on either side which I assume separates the columns). > > .dump does not preserve nulls in text fields: SQLite version 3.6.11 Enter ".help" for instructions sqlite> sqlite> create table tst( t timestamp, resType text ); sqlite> insert into tst values( datetime( 'now' ), 'PSM' ); sqlite> insert into tst values( datetime( 'now' ), 'PSM'||X'00' ); sqlite> sqlite> insert into tst values( datetime( 'now' ), 'PSM'||X'00'||'more text' ); sqlite> sqlite> .dump BEGIN TRANSACTION; CREATE TABLE tst( t timestamp, resType text ); INSERT INTO "tst" VALUES('2010-04-30 16:01:07','PSM'); INSERT INTO "tst" VALUES('2010-04-30 16:01:07','PSM'); INSERT INTO "tst" VALUES('2010-04-30 16:03:40','PSM'); COMMIT; sqlite> sqlite> select hex( resType ) from tst; 50534D 50534D00 50534D006D6F72652074657874 sqlite> try SELECT hex( resType ) FROM MyTable; Regards, Simon _______________________________________________ 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
