[docs] db - minor unification

[Frodox]

• I have updated the appropriate documentation

[mention-bot]

@Frodox, thanks for your PR! By analyzing the history of the files in this pull request, we identified @sa2ajj, @prasoon2211 and @tychoish to be potential reviewers.

[mention-bot]

@Frodox, thanks for your PR! By analyzing the history of the files in this pull request, we identified @sa2ajj, @prasoon2211 and @tychoish to be potential reviewers.

[codecov]

Codecov Report

Merging #3491 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3491   +/-   ##
=======================================
  Coverage   88.25%   88.25%           
=======================================
  Files         323      323           
  Lines       33720    33720           
=======================================
  Hits        29760    29760           
  Misses       3960     3960

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[seankelly]

Could you fix the DbConfig page too? It has:

c['db_url'] = 'mysql://user@pass:mysqlserver/buildbot'

The @ and : need to be swapped.

[Frodox]

ah, of course. Fixed

[Frodox]

Can we write about sqlite in memory case also here? sqlite://

@rjarry is it ready enough to use/test it?:)

[tardyp]

Can we write about sqlite in memory case also here? sqlite://

Need to be very very clear that this is only for development, or if you like to loose your data!