Book: D&D of MOGs

Gradual OLTP DB Development - from Zero to 10 Billion Transactions per Year and Beyond

December 13, 2016 by “No Bugs” Bunny

10 transactions per second to 10K transactions per second

Quote:

to make an efficient representation usable for OLAP – we need to modify our data on its way to OLAP replicas

Another Quote:

Each of the DB Server Apps is a replica master, but all replica targets are within the same Replica DB

Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.System ArchitectureDesign decisionsDistributed systems(Re)Actors

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Representing The Same Data Structure in SQL and NoSQL (from Classical Codd-style SQL to Key-Value NoSQL with SQL-with-XML and Structured NoSQL in between)

December 5, 2016 by “No Bugs” Bunny

SQL Bindings Compiler

Quote:

while duplication MAY indeed improve performance – undue duplication also MAY hit performance pretty badly

Another Quote:

NoSQL will usually call for another denormalisation on top of what we’ve described above for SQL-with-XML.

Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.System ArchitectureDesign decisions

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OLTP. Compiling SQL Bindings.

November 28, 2016 by “No Bugs” Bunny

SQL Bindings Compiler

Quote:

If we’re speaking about millions transactions per day over just a few hundred of different SQL statements – compiling those statements a million times (instead of a few hundred times) will be a dramatic waste of resources.

Another Quote:

Once upon a time, I observed the largest C++ file in my career – it was a 30’000-line file(!) consisting merely of ODBC bindings (and that was just for 300 or so SQL statements)

Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.System ArchitectureDesign decisions

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Historical Data in Databases. Audit Tables. Event Sourcing

November 21, 2016 by “No Bugs” Bunny

Herodotus writes history... in binary and to Database

Quote:

99% of reporting requests and 99.9% of analytics is purely historical

Another Quote:

Information within the audit table should be sufficient to validate/justify current state

Filed under: Book: D&D of MOGs1st beta of Vol. IV-VIOn.System ArchitectureDesign decisions(Re)Actors

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