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Tag: sql help

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Here you can find all blog posts about the Tag: sql help. You can go back to all blog posts or take a look into our other categories & tags.

PostgreSQL: Speeding up GROUP BY and joins

by Hans-Jürgen Schönig | 12.2017
A couple of weeks ago I have seen a horribly designed, 370 billion (with a “b”) row Oracle database monster […]

Creating 1 million users in PostgreSQL

by Hans-Jürgen Schönig | 12.2017
While I was at database training to migrate some poor fellows from Oracle to PostgreSQL, I was confronted with this […]

Searching for the best compromise: “Skyline” queries

by Hans-Jürgen Schönig | 12.2017
Ever since Hannes Eder published the idea of the SKYLINE OF operator on the PostgreSQL mailing list years ago, I […]

PostgreSQL Showcase project - helping newcomers to get on track with Postgres

by CYBERTEC Guest | 08.2017
Here's a short one. To prepare for the upcoming training season, I thought I'll get our little "Postgres Showcase" (GitHub […]

Writing your own aggregation functions

by Hans-Jürgen Schönig | 07.2017
Many people who have used PostgreSQL or SQL in general in a professional or semi-professional way have stumbled across “aggregate […]

Why favor PostgreSQL over MariaDB / MySQL

by Hans-Jürgen Schönig | 04.2017
For many years, MySQL and PostgreSQL were competing databases, which addressed slightly different audiences. In my judgement (which is of […]

Removing duplicate rows in PostgreSQL

by Hans-Jürgen Schönig | 04.2017
After some time of absence due to a high workload I finally got around to write more on an issue, […]

Experimenting with scaling and full parallelism in PostgreSQL

by Hans-Jürgen Schönig | 02.2017
A lot has been said and written about scaling PostgreSQL to many cores and subsequently to many machines. Running PostgreSQL […]

Two simple Postgres tips to kick-start the year 2017

by CYBERTEC Guest | 01.2017
While reviewing my notes on some handy Postgres tricks and nasty gotchas, to conclude an on-site training course, my “current […]

Detecting unstable execution times in PostgreSQL

by Hans-Jürgen Schönig | 12.2016
Do you have queries with unstable execution times? You have a query which is sometimes slow and sometimes just lightning […]
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