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Re: Lookup tables

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On 2/4/25 07:19, Ron Johnson wrote:

How big is the database?  A tiny 500MB db just for you can get by with poor design.  (But then, why are you using PG instead of SQLite?)

For the reasons listed here:

https://sqlite.org/quirks.html

In particular:

[...]

2. SQLite Is Embedded, Not Client-Server

3. Flexible Typing

SQLite is flexible with regard to datatypes. Datatypes are advisory rather than mandatory.

4. Foreign Key Enforcement Is Off By Default

[...]


More importantly, will you ever update the descriptions?  Of course not! Famous last words.  Having a separate PK means that you update one row in one column, while what you've done means that tens/hundreds of thousands of rows in possibly dozens of tables need to be updated.

It also means that *you* can easily change things in your ad hoc database *without forgetting* to update a table.

This is called an "update anomaly" in relational design theory.

--
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!

--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx






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