General Programming Q&A thread! Ask any questions about programming, answer the questions of other users, or post suggestions for future threads.

Don't forget to format your code using the triple backticks or tildes:

Here is my schema:

```sql
CREATE TABLE article_to_warehouse (
  article_id   INTEGER
, warehouse_id INTEGER
)
;
```

How do I add a `UNIQUE` constraint?

Have you watched any TV shows recently you want to discuss? Any shows you want to recommend or are hyped about? Feel free to discuss anything here.

Please just try to provide fair warning of spoilers if you can.

As part of a weekly series, these topics are a place for users to casually discuss the things they did — or didn't do — during their weekend. Did you make any plans? Take a trip? Do nothing at all? Tell us about it!

So much for being a privacy conscious site /s

Anyway, my default setting is activity for the last 7 days mainly for the weekly recurring threads, otherwise I'd probably use 3 days.

(Mildly offtopic but an option to separate recurring threads from normal threads might be nice, since if you're using a shorter period for stuff to show up on the homepage, the weekly recurring threads which should be used/active for the whole week kind of don't.)

This thread is posted weekly - please try to post relevant content in here, such as news, updates, opinion articles, etc. Especially significant updates may warrant a separate topic, but most should be posted here.

This thread is posted weekly, and is intended as a place for more-casual discussion of the coronavirus and questions/updates that may not warrant their own dedicated topics. Tell us about what the situation is like where you live!