These types of questions are harmful to the site and should be quickly closed and probably deleted.
I know that SO has a no-shopping-list questions policy, and this feels like a shopping-list.
It's not just SO, this has been established network wide for a long time. Just two meta.SE examples:
List questions: Community Wiki?
What is the definition of a ...
As many of the following as possible:
Database product, precise version, and edition.
Formatted text of the query/procedure/function.
Current and desired performance levels.
Things you can and cannot change (e.g. can add indexes, cannot change the query).
Ideally the post-execution variety, containing runtime information.
Estimated execution ...
Questions that are trivial enough to be answered in this way are too simple for dba.se and should be closed
If it does warrant a full answer, posting the answer as a comment makes the solution less discoverable for future visitors.
Answering a "poor" question in a comment encourages another poor question instead of improving the current one. After all, ...
I don't think "this vs that" is a good fit for anything that attempts to be canonical. Each DBMS will change over time, and as such, the answers will vary substantially over time.
These types of questions are just troll fodder, in my opinion.
How to create a Minimal, Complete, and Verifiable Example for database-related questions
Database-related questions asking for practical advice will get the most helpful answers if they provide a framework others can use to reproduce that problem.
With that in mind, when asking a question please create a framework that is:
Minimal – Use as little code as ...
This is the official dba.se guidance for canonical links - although it is not guaranteed to be up-to-date (and currently it is slightly out-of-date).
See the comments below this post for a list of magic tags and their renderings. Hover your mouse over the rendered magic link to see a tooltip of the target URL. The follow examples are excluded ...
I can see the points made by the other answerers here that incorrect, invalid, and misleading answers can be useful - certainly if I wanted to know the wrong way to do something.
I tend to imagine people are searching the web for an answer not to confirm they are right when in fact they are wrong, but to find the actual answer.
Imagine your surprise if ...
Instructions for PostgreSQL Performance Questions
Served as description for the tag postgresql-performance before that was merged into the generic tag performance.
Change was reverted and tag is back:postgresql-performance
If you already know a way to get your output but need a faster solution then this tag may be appropriate. May concern techniques for a ...
PostgreSQL's official client, psql, makes this task super easy. It's a command line client.
Further formatting options are available,
\a toggle between unaligned and aligned output mode
\C [STRING] set table title, or unset if none
\f [STRING] show or set field separator for unaligned ...