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PostgreSQL - JSONB and Statistics | Select * from Adrien
pretty neat look under the hood at how pg calculates query cost and things you can do with jsonb fields to help it along
database  postgres 
4 days ago by cwinters
PostgreSQL Exercises
Provides a series of questions and explanations built on a single, simple dataset. It's designed for use as a partner to a good book or Postgres' excellent documentation.
sql  postgresql  tutorial  postgres  learning  via:popular 
5 days ago by jonlabelle
Citus Data · GitHub
Open source clustering tool for postresql
postgres  cluster 
7 days ago by ckazimie
SQL Window Functions Tutorial for Business Analysis
What you have to keep in mind about datediff is that that the minuend (i.e. what you subtract from) is the third parameter of the function and the subtrahend (i.e. what you subtract) is the second parameter. I personally think that’s a bit counterintuitive for subtraction, and the self join concept itself is not basic. There’s actually a much better way to express the same logic:
sql  postgres  analytics 
7 days ago by dano
PostgreSQL Exercises
PGExercises provides a series of questions and explanations built on a single, simple dataset. It's designed for use as a partner to a good book or Postgres' excellent documentation.

The exercises on this site range from simple select and where clauses, through joins and case statements, and on to aggregations, window functions, and recursive queries. Most people who aren't already pros should find something to test themselves with.
tutorial  sql  postgres  learning 
8 days ago by stevenharman

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