On 26 Sep 2011, at 10:30pm, Tim Streater wrote: > it's quite possible that it can ask apache to run three or four threads more > or less simultaneously, each of which may want to modify the same set of > SQLite databases. Each such thread is a PHP script using the PDO interface; > this is under OS X 10.7.1 using whichever apache version/PHP/SQLite that > comes with it (it's all pretty recent, IIRC).
I have at least one setup using that combination of software apart from the single point that instead of using the PDO interface to SQLite, I'm using PHP's SQLIte3:: object-oriented interface. > My question now is, if two or more PHP scripts are competing for access to > the same database, is "database schema has changed" a possible outcome? Well, let's see what you're actually doing. The following SQL commands should never cause that error: SELECT, INSERT, UPDATE, BEGIN, COMMIT. What other SQL commands are you issuing ? VACUUM or ANALYZE ? CREATE or DROP ? Simon. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
