Hi Chris or anyone who can help
When I try this just below, it complains about foo (new table created in db2) , saying ERROR: schema foo does not exist. I got stuck on this error for a while now but still trying to see why but still no luck so far. If you have something please help
begin;
update foo
set br_desc = bar.br_desc
, br_active = bar.br_active
(rest of columns)
where foo.br_cde = bar.br_cde;
From: Khangelani Gama [mailto:kgama@argility.com]
Sent: Friday, March 28, 2014 7:52 AM
To: 'chris@chriscurvey.com'; 'pgsql'
Subject: RE: [GENERAL] Synchronizing a table that is two different databases : Need to dump a table a insert from db1 and change the insert statements into UPDATE statements
Thank you very much, I will try option 2 because option 1 will give me FK constrains. These two databases are not exactly similar, but few tables on each of these Databases needs to be exactly the same, in this case db1 is the reliable one, hence that’s why I need to update db2 with what it’s in db1.
From: ccurvey@gmail.com [mailto:ccurvey@gmail.com] On Behalf Of Chris Curvey
Sent: Thursday, March 27, 2014 3:08 PM
To: Khangelani Gama; pgsql
Subject: Re: [GENERAL] Synchronizing a table that is two different databases : Need to dump a table a insert from db1 and change the insert statements into UPDATE statement
(For clarity, I'm going to call the table in question "foo".)
Option 1: If you just want to do a full copy of db1.foo to db2.foo, then do that. Dump foo from db1, truncate foo in db2 and load db2.foo from the dump. But you might not be able to do that (foreign keys and such). In that case..
Option 2: Dump the table from db1, then load it into a table with a different name ("bar") in db2. Then you can do this:
set br_desc = bar.br_desc
, br_active = bar.br_active
where foo.br_cde = bar.br_cde;
insert into foo (br_cde, br_desc, br_active, ...)
select br_cde, br_desc, br_active, ....
where foo.br_cde = bar.br_cde);
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