Re: Oracle to postgres migration

I migrated a 12TB Oracle db that was mostly LOB objects into an 8TB PG
database. LOBs loaded into bytea columns.
One thing which I did not do, but should have, was have ora2pg convert
NUMBER(38,0) values to BIGINT.

We just used ora2pg to convert data; the app developer rewrote all of the
stored procedures, functions, triggers, etc.

On Mon, Jan 27, 2025 at 4:31 AM Rajesh Kumar <rajeshkumar(dot)dba09(at)gmail(dot)com>
wrote:

> Size is 300gb, have lob objects. I prefer ora2pg. Does EDB MTK costs?
>
> Mostly I need to know what are all the things I need to ask oracle people
> to start withj
>
> On Mon, 27 Jan 2025, 14:52 Julien Rouhaud, <rjuju123(at)gmail(dot)com> wrote:
>
>> Hi,
>>
>> On Mon, Jan 27, 2025 at 02:42:22PM +0530, Rajesh Kumar wrote:
>> > Hi team,
>> >
>> > I am trying to migrate from oracle to postgres.
>> >
>> > I have been asked to provide an estimation for effort days. Anybody has
>> any
>> > document related to estimation? And steps.
>> >
>> > Where do I start with? Anybody has any documentation related to ora2pg
>> > migration ?
>>
>> ora2pg is probably the best tool for your task. And yes it does provide
>> estimates for the migration efforts, see
>> https://ora2pg.darold.net/documentation.html#Migration-cost-assessment.
>>
>> In general the ora2pg documentation is really good, you should find the
>> answer
>> to all your questions there.
>>
>

--
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!