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Re: Question: How do you manage version control?

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So we've been reviewing our processes and working on improving them. One area
we've been lacking is a procedure to version control our database functions,
table changes, static data etc I'm curious how others do it. Ideally, we
want it to be part of our release / build process so that we deploy
functions. 


A true end to end Database Change Management best practice process should
include two aspects of database development; the act of version control and
the act of deployment and these steps must be in sync with each other. Just
make sure that your DCM process meets all the necessary best practice
requirements for DCM:
1.	Change Policy Enforcement – every change is documented. Locking mechanism
doesn’t allow for any object changes to be made outside of the check in
/check out.
2.	End to end change management solution that enables the deploy phase to
connect to the change history.
3.	All of the 3 database code types are managed and controlled. 
a. Schema structure 
b. Business Logic 
c. Lookup or reference date


Read more here about DCM  http://bit.ly/KE7n9A http://bit.ly/KE7n9A 



Robert Gravsjö wrote
> 
>> -----Ursprungligt meddelande-----
>> Från: pgsql-general-owner@ [mailto:pgsql-general-
>> owner@] För Ralf Schuchardt
>> Skickat: den 1 juni 2012 18:24
>> Till: pgsql-general
>> Ämne: Re:  Question: How do you manage version control?
> 
> I was using a very simplistic approach a while back. I kept the DDL to
> create current version from scratch in one file,
> the DDL to upgrade from last schema version in another and then a small
> shell script to run the upgrade.
> 
> I kept the version number in a table for the shell script to check and
> abort if schema version didn't match and then 
> update after successful upgrade.
> 
> All files were kept under version control and if I needed older versions
> of the upgrade file I just browsed the
> history and got it from there.
> 
> Very simple, no special tools and easy to run and understand for all
> developers (even for the "I won't go near sql"-ones).
> 
> Working with branches makes it a bit harder since the database patch has
> to be manually handled when
> merging.
> 
> Regards,
> roppert
> 
>> 
>> Hello,
>> 
>> am 01.06.2012 um 17:28 schrieb Bryan Montgomery:
>> 
>> > So we've been reviewing our processes and working on improving them.
>> One area we've been lacking is a procedure to version control our
>> database
>> functions, table changes, static data etc.
>> 
>> we use a very basic system since a few years, consisting mainly of shell
>> scripts
>> and sql scripts processed by psql.
>> 
>> > I'm curious how others do it. Ideally, we want it to be part of our
>> release /
>> build process so that we deploy functions.
>> >
>> > However, how do you handle dependancies?
>> 
>> The code for every recreatable object (i.e. views, functions, maybe
>> types) is
>> stored in its own file. It includes also a drop statement for these
>> objects and
>> formal comments to declare dependencies between the files. The files are
>> processed with a small script that extracts the dependency declarations
>> and
>> writes a create and drop script for all objects while maintaining the
>> correct
>> order.
>> 
>> > We've also used patch files if we need to modify tables - these are
>> typically
>> written to only run once, ie alter table add column x int. Any thoughts
>> on
>> putting this in to a process so that it can be run mutliple times without
>> any
>> issue?
>> 
>> Our database has a "versions" table, containing the version (and date) of
>> applied patch files. Every patch file checks the current version in the
>> database and throws an exception, when it does not match its expected
>> version.
>> The directory with the recreatable objects is versioned along the patch
>> files.
>> 
>> 
>> Regards
>> Ralf
>> --
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