Question

Ok, so here is the code that I’m trying to execute.

begin transaction;
SELECT [version] as ver FROM [dbinfo];
WHEN ver = 1 THEN
    UPDATE [dbinfo] SET [version]=2;
    ver = 2;
    ALTER TABLE [cards] ADD COLUMN [alternate] TEXT NOT NULL;
END
WHEN ver = 2 THEN
    UPDATE [dbinfo] SET [version]=3;
    ver = 3;
    ALTER TABLE [cards] ADD COLUMN [dependent] TEXT NOT NULL;
    ALTER TABLE [cards] ADD COLUMN [mutable] BOOLEAN;
END
commit transaction;

Doesn’t work. Gets stuck on WHEN. I’ve tried also CASE WHEN, and a couple other various methods.
I need to step through ver by ver with this, so any ideas on how to make something like this work for Sqlite?
Thanks.

Answer 1

Can’t be done. Have to use workarounds using transactions and stuff.