On Mar 29, 2008, at 12:34 AM, Jerry Krinock wrote: > Someone sent me an sqlite database file. > > Opening in Mac OS 10.5 with the built-in sqlite 3.4.0, no problems. > > Opening in Mac OS 10.4 with the built-in sqlite 3.1.3, any query > returns sqlite error 1, "unsupported file format". > > Similar files from other users open in either Mac OS/sqlite version. > > I'd thought that sqlite3 databases were generally backward- > compatible. Is there any way to find out what is "unsupported" by > sqlite 3.1.3 in this database? >
The databases are backwards compatible. The database you are having trouble with is created by a more recent version of SQLite and uses features that were not added until after 3.1.3. Backwards compatible means that newer versions of SQLite can open any historic database. You are trying to open a newer database with an historic version of SQLite - that would be forwards compatibility. SQLite is generally forwards compatible, except when the newer database uses features which were added later. The added feature is probably a descending index. D. Richard Hipp [EMAIL PROTECTED] _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
