On Tue, Jan 16, 2024 at 5:31 PM Rob Sargent <robjsarg...@gmail.com> wrote:
> On 1/16/24 10:20, Ron Johnson wrote: > > Some RDBMSs have CREATE ALIAS, which allows you to refer to a table by a > different name (while also referring to it by the original name). > > We have an application running on DB2/UDB which (for reasons wholly > unknown to me, and probably also to the current developer) extensively uses > this with two schemas: MTUSER and MTQRY. For example, sometimes refer to > MTUSER.sometable and other times refer to it as MYQRY.sometable. > > My goal is to present a way to migrate from UDB to PG with as few > application changes as possible. Thus, the need to mimic aliases. > > Maybe updatable views? > CREATE VIEW mtqry.sometable AS SELECT * FROM mtuser.sometable; > > Isn't it time to get rid of that debt? A sed -i 's/MTUSER/MTQRY/g' (or > vice versa) ends what looks to me to be a split brain problem. All the sql > is in git right? :) > > Or perhaps you have to beef the sed up to use word boundaries just in case. > I'm not a Java web developer... 😁
