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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.

How to corrupt your PostgreSQL database

by Laurenz Albe | 08.2022
Of course most people do not want to corrupt their databases. These people will profit from avoiding the techniques used […]

Better SQL functions in PostgreSQL v14

by Laurenz Albe | 07.2022
We all know and value SQL functions as a handy shortcut. PostgreSQL v14 has introduced a new, better way to […]

Column order in PostgreSQL does matter

by Hans-Jürgen Schönig | 07.2022
Column order can determine how quickly your data is processed in PostgreSQL. Find out how to troubleshoot performance problems in wide tables

Handling Bonus Programs in SQL

by Hans-Jürgen Schönig | 07.2022
Learn how to address the issue of bonus programs in SQL, improve your understanding of PostgreSQL, and calculate bonus points efficiently

Transaction anomalies with SELECT FOR UPDATE

by Laurenz Albe | 06.2022
  I was recently confronted with a nice example of how adding FOR UPDATE to a query can introduce transaction […]

Case-insensitive pattern matching in PostgreSQL

by Laurenz Albe | 06.2022
    (Updated on 2024-11-27) Case-insensitive search is a much-requested feature, partly (I suspect) to maintain compatibility with Microsoft SQL […]

Time zone management in PostgreSQL

by Laurenz Albe | 05.2022
  Next to character encoding, time zones are among the least-loved topics in computing. In addition, PostgreSQL's implementation of timestamp […]

PostgreSQL 15: Using MERGE in SQL

by Hans-Jürgen Schönig | 05.2022
Merge - UPDATED 2023 - a technical preview of how to merge lists with ease. Find out about a wonderful command - add power to your PostgreSQL.

PostgreSQL: mapping timestamps (date_bin)

by Hans-Jürgen Schönig | 04.2022
How to map timestamps to time bins: In PostgreSQL 14, a new function date_bin has been added which maps date & time to time buckets.

PostgreSQL: Creating checksums for tables

by Hans-Jürgen Schönig | 03.2022
Learn how checksums and ordered sets are used to compare the content of tables in your PostgreSQL database. Ensure data quality.
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