Question

I`m using SQLite version 3.3.6 from python 2.7.2.

While executing this query with executescript() from python script:

attach database 'Capacity.db' as WeekAgo;
drop table if exists maximums;
create table maximums (Element TEXT UNIQUE, Score NUMBER , Report TEXT);
insert into maximums (Element, Score, Report) select * from WeekAgo.maximums;

I always ending up with deletion of WeekAgo.maximums table in attached database and script crashing that no WeekAgo.maximums exists anymore. What am I doing wrong? Without DROP IF EXISTS, everything works fine.

Answer 1

Use the main keyword:

attach database 'Capacity.db' as WeekAgo;
drop table if exists main.maximums;
create table main.maximums (Element TEXT UNIQUE, Score NUMBER , Report TEXT);
insert into main.maximums (Element, Score, Report) select * from WeekAgo.maximums;

See https://www.sqlite.org/lang_attach.html

If two or more tables in different databases have the same name and the database-name prefix is not used on a table reference, then the table chosen is the one in the database that was least recently attached.