On Fri, 24 Sep 2010, John Reed wrote: > I compare an application every few days which has sqlite as it's client > database. I look at the content and check whether documents have made it > into the application after it has been built. I also check the metadata in > the sqlite client database for changes. So, I am constantly comparing the > last database with the newer database. Both databases have exactly the > same tables, with only the data being changed in most of the 51 tables.The > largest table has about 3,700,000 rows. Most other tables have much less > rows in them. Could someone suggest an sql query to find the difference in > the same table (ta) for both the last database (db1) and the newer > database (db2)? I can use SQLiteSpy to connect and attach to the > databases.
You'll want to tune the syntax, but try something like: SELECT colA FROM db1 WHERE (NOT EXIST colA IN db2); The idea is to match rows in each table and where the equivalent row in db1 is not in db2, add that to the results table. Rich _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
