PostgreSQL
Mastering PostgreSQL in Application Development
Mastering PostgreSQL in Application Development is the full title of the book I am currently writing. Running the PostgreSQL is YeSQL series of blog posts has shown me …
category
PostgreSQL
140 posts
PostgreSQL
Regular Expressions and Grouping Sets
There’s a very rich set of PostgreSQL functions to process text, you can find them all at the String Functions and Operators documentation chapter, with functions …
PostgreSQL
SQL Regression Tests
In a previous article here we saw How to Write SQL in your application code. The main idea in that article is to maintain your queries in separate SQL files, where …
PostgreSQL
from MySQL to PostgreSQL
Today pgloader v3.4.1 is released and available! This new release comes with 110 commits as show in github compare view. This release of pgloader is following the …
PostgreSQL
Playing with Unicode
The reason why I like Unicode a lot is because it allows me to code in text based environments and still have nice output. Today, we’re going to play with Regional …
PostgreSQL
PostgreSQL and the calendar
The modern calendar is a trap for the young engineer’s mind. We deal with the calendar on a daily basis and until exposed to its insanity it’s rather common …
PostgreSQL
SQL and Business Logic
Business logic is supposed to be the part of the application where you deal with customer or user facing decisions and computations. It is often argued that this part …
PostgreSQL
Exploring a Data Set in SQL
Sometimes you need to dive in an existing data set that you know very little about. Let’s say we’ve been lucky to have had a high level description of the …
PostgreSQL
How to Write SQL
Kris Jenkins cooked up a very nice way to embed SQL in your code: YeSQL for Clojure. The main idea is that you should be writing your SQL queries in .sql files in your …
PostgreSQL
Find The Missing Integer
A recent interview question that I had to review was spelled like this: Find missing int element into array 1..100 Of course at first read I got it wrong, you have only …
PostgreSQL
Meetup PostgreSQL à Paris
Mercredi 8 octobre se tiendra le prochain Meetup PostgreSQL à Paris dans les locaux de Mozilla Europe, dont la capacité est de 90 personnes ! Venez nombreux !
PostgreSQL
PostgreSQL, Aggregates and Histograms
In our previous article Aggregating NBA data, PostgreSQL vs MongoDB we spent time comparing the pretty new MongoDB Aggregation Framework with the decades old SQL …