Tag: sql help

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How to count hits on a website - concurrent counting in PostgreSQL

by Hans-Jürgen Schönig | 05.2020

How to grant users access to a certain piece of data a limited number of times. What happens if two users access it concurrently?

How To

PostgreSQL: now() vs. 'NOW'::timestamp vs. clock_timestamp()

by Hans-Jürgen Schönig | 05.2020

How to use the PostgreSQL: now() vs. 'NOW'::timestamp vs. clock_timestamp() | Issues with time and date in PostgreSQL database applications

How To

Speeding up count(*): Why not use max(id) - min(id)

by Hans-Jürgen Schönig | 04.2020

The usage of max(id) - min(id) to speed up count(*) may seem like a good approach when it comes to speeding up the process, but it can be problematic.

How To

Embedded SQL in C for PostgreSQL with ecpg

by Laurenz Albe | 03.2020

Embedded SQL is by no means a new feature — in fact it is so old-fashioned that many people […]

How To

Migrating from MS SQL to PostgreSQL: Uppercase vs. Lowercase

by Hans-Jürgen Schönig | 02.2020

How to: MS SQL PostgreSQL Migration. What you should do and how you can do it easily. Read more in this blog...

How To

Tips and tricks to kick-start Postgres year 2020

by CYBERTEC Guest | 01.2020

Postgres Tips and Tricks: Benefit from these little Time-Saving commands, SQL snippets or PostgreSQL features for PostgreSQL users.

How To

PostgreSQL: You might need to increase max_locks_per_transaction

by Hans-Jürgen Schönig | 01.2020

How can you prevent the error "out of shared memory" in PostgreSQL? max_locks_per_transaction is the critical configuration parameter.

Performance

Abusing PostgreSQL as an SQL beautifier

by Hans-Jürgen Schönig | 12.2019

Even though SQL is pretty easy to read, developers often use SQL beautifier. Is it possible to format queries nicely only using PostgreSQL onboard tools?

How To