SQLite does have an ALTER TABLE command. You can use it to rename a table or add a column but that's all. I've used the same technique as Bob to get the CREATE command for a table and I believe that the sql syntax is updated by an ALTER command, not a second entry created. I use the SQLite admin plugin for Firefox do other types of table structure changes and it does indeed unload the table, delete it, then load it again and it seem to recreate any indexes/triggers associated with the table. The CREATE syntax in th mastr table is recreated automatically since the table is re-created.
Pete Haworth On Jan 6, 2011, at 11:29 AM, Ruslan Zasukhin wrote: > On 1/6/11 9:22 PM, "Bob Sneidar" <b...@twft.com> wrote: > >> Are you saying that an Alter Table command will create a second record with >> the alter table syntax in it? I didn't know that. > > Actually as I know, Sqlite have no normal ALTER Table > >> It throws a bit of a wrench >> in my works, but then again the best practices for sqLite table mods is to >> create a new table with the new structure from scratch and port the old data >> in from the old table. > > This is "best" practice, because no ALTER. > > And our guys have spend days to workaround this behind the scene. > Yes, they do create new table, copy records, trash old ... > >> There are a lot of things you cannot do with Alter >> Table in sqLite, as was discussed in another thread, so maybe this is a >> non-starter anyway. > > right > >> Bob >> >> >> On Jan 6, 2011, at 11:11 AM, Ruslan Zasukhin wrote: >> >>>> This will give me all the Create Table syntax for every table in the sqLite >>>> database I access. >>> >>> I see, Bob, >>> >>> You are using sqlite_master system table to extract original >>> create table ... command >>> >>> Interesting, if this is changed on any ALTERs ... >>> Although it seems there is no alters ... > > -- > Best regards, > > Ruslan Zasukhin > VP Engineering and New Technology > Paradigma Software, Inc > > Valentina - Joining Worlds of Information > http://www.paradigmasoft.com > > [I feel the need: the need for speed] > > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
