Author: ThomasCerqueus

Scripts to populate the date dimension in a PostgreSQL data warehouse

Anybody who’s worked on a data warehouse knows the date dimension is key. Designing it is complex and filling it might be tricky and time consuming. In this article I simply share SQL scripts I came up with to fill the date dimension in a PostgreSQL data warehouse.  Continue reading Scripts to populate the date dimension in a PostgreSQL data warehouse

Bass Transcription of Magdalene – Lenny Kravitz

Magdalene is my all-time favourite song from Kravitz. It was released in 1995 on the album Circus. When I started playing bass, I could not find the transcription anywhere. A few years later, it became one of the first songs I transcribed.

Lenny Kravitz in 1995. Simon Ritter/Redferns/Getty.

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Dealing with non-primitive types with Talend tPostgresqlOuput component

Batch entry 0 INSERT INTO "public"."log" ("source","logged") VALUES ('123.45.56.78','2017-06-21 13:52:23') was aborted. Call getNextException to see the cause.

Ever bump into this kind of exception? This issue drove me crazy, and it took me a good few hours to figure out how to deal with it. The solution is actually very simple… once you know it!

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Using Talend tRowGenerator to populate tables with foreign key constraints

Many tutorials show how to use the tGeneratorRow component, but most of them (if not all of them) consider ad-hoc examples. Therefore, they’re often hard to apply in real-world situations. In this post I’m going to explain how to populate a table referencing another table.

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