Posts about Postgres Tutorials
Top 10 Postgres Management Tasks
The must know Postgres management tasks to look at for any scale. Plus a bonus image included showing the recent and upcoming Postgres release schedule.
Postgres Subquery Powertools: CTEs, Materialized Views, Window Functions, and LATERAL Join
Wondering when to use a Materialized View or a CTE? Elizabeth has summaries, example queries, and comparisons for the most popular subquery tools.
10 min readFun with PostgreSQL puzzles: Surface Area and 3D Slices
Greg continues with more puzzles and solutions for the Advent of Code series, today covering day 18's puzzle. Greg has some amazing functions for surface area, heat maps, and 3d visualizations.
11 min readTags and Postgres Arrays, a Purrrfect Combination
Are you using tags in your database with some of your main database properties? Paul reviews some of the ways to store tags in a database from basic relational models to text arrays. He provides some performance tests, sample queries, and guidance on choosing the best path.
7 min readWorking with Time in Postgres
A primer on working with time in Postgres. Covers data types, query formats, intervals, overlaps, range types, indexing, and roll ups.
Easy PostgreSQL Time Bins
Paul has some fast and easy tricks to show you how to get time series data into nice reportable data charts. Using functions like floor(), generate_series(), width_bucket(), and date_bin() you can bin your data in groups any way you like and retrieve charts in a flash.
7 min readIntroduction to Postgres Backups
A high level overview of the backup options in Postgres. Including pg_dump, pg_basebackup, and pgBackRest.
9 min readGeocoding with Web APIs in Postgres
Jacob walks you through the steps on how to set up a geocoder with the US census geocoding API inside your database with a plpython function and triggers.
3 min readPostgres Raster Query Basics
Paul takes us through how rasters are stored and queried in Postgres/PostGIS. He gives us the must have tips for dealing with rasters inside a database using digital elevation mode (DEM) examples.
6 min readSQL Tricks for More Effective CRUD
Level up your SQL skills with this quick tutorial of some simple and not-so-simple create, read, update, and delete (CRUD) statements.
7 min readHow to Solve Advent of Code 2022 Using Postgres - Day 15
Day 15 of AOC we have new hands on SQL for the Beacon Exclusion Zone. This one uses CTEs, sequences, regexp_substr() / regexp_match(), int4range, range_agg(), and an upsert.
18 min readUsing Postgres FILTER
Craig dives into using FILTER and shows a query example using CTEs, CASE WHEN, and FILTER.
5 min readWill Postgres Use My Index? Hypothetical Indexing for Postgres
HypoPG is an extension to create hypothetical indexes and test if Postgres will use them. We think this tool is a good one to use in combination with our other favorites like EXPLAIN and pg_stat_statements.
3 min readIntro to Postgres Custom Data Types
A quick primer on the two main ways to create custom data types in PostgreSQL - DOMAINs and user-defined custom data types. Get some quick examples and learn which tools are recommended.
How to Solve Advent of Code 2022 Using Postgres - Day 14
Day 14 of AOC we have new hands on SQL for the Distress Signal. This one uses lag(), sequencing, regexp_replace(), and overlay().
10 min readHow to Solve Advent of Code 2022 Using Postgres - Day 13
Day 13 of AOC we have new hands on SQL for the Distress Signal. This one uses lag(), sequencing, regexp_replace(), and overlay().
8 min readHow to Solve Advent of Code 2022 Using Postgres - Day 12
Day 12 of AOC we have new hands on SQL for the Hill Climbing Algorithm. This one uses parsing, an IDENTITY column, functions, and text arrays.
7 min readHow to Solve Advent of Code 2022 Using Postgres - Day 11
Day 11 of AOC we have new hands on SQL for playing Monkey in the Middle. This one uses sequences, string functions, and window functions.
13 min readHow to Solve Advent of Code 2022 Using Postgres - Day 10
Day 10 of AOC we have new hands on SQL for reading signals. This one uses sequences and the OVER() function.
9 min readHow to Solve Advent of Code 2022 Using Postgres - Day 9
Day 9 of AOC we have new hands on SQL for looking at a rope bridge. This one uses a custom function and colored ASCII art.
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