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Twineworks
We’re a Berlin-based digital consulting company specializing in analytics and business intelligence. Here’s where we share our stories.
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To code, to ETL, or to SQL?
To code, to ETL, or to SQL?
Whether you’re wrangling data to perform one-off analysis, ingesting data into a data-lake, or building a data warehouse of some sort — all…
Slawomir Chodnicki
Dec 5
Converting a MySQL dump to CSV files
Converting a MySQL dump to CSV files
I needed to migrate a set of tables from MySQL/MariaDB to a different SQL database recently. My source was not an actual live connection to…
Slawomir Chodnicki
Dec 1
Improving startup time of Pentaho Data Integration
Improving startup time of Pentaho Data Integration
If you’re running kettle processes through pan or kitchen you might be interested in reducing startup time. Startup times of pan, kitchen…
Slawomir Chodnicki
Nov 22
The price and value of analytic models
The price and value of analytic models
More often than not there is a semantic gap between the data an operational system works with, and metrics that are based on that data.
Slawomir Chodnicki
Oct 5
On entry points for ETL projects
On entry points for ETL projects
ETL solutions tend to be opaque to the operators running them. Any non-trivial ETL solution has multiple things it can potentially do…
Slawomir Chodnicki
Sep 27
What is a data warehouse anyway?
What is a data warehouse anyway?
The business intelligence world breeds plenty of jargon and acronyms. This story is about the core idea of what a data warehouse is, and…
Slawomir Chodnicki
Sep 21
Testing strategies for data integration
Testing strategies for data integration
Data integration processes benefit from automated testing in the same way any other software does. Yet it is rare to come across an ETL…
Slawomir Chodnicki
Sep 19
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