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.

Occasionally people here get into discussions about social relationships, namely dating, and what quickly comes up is how both of those seem to be less common and harder to 'get'. This more frequently happens in overtly dating and relationship subreddits and similar dedicated spaces, albeit, of course, this also pops up in more general communities, alongside any community where social relationships are an important topic, like communities about social ideologies like feminism or the manosphere or about genders because heterosexuality.

One thing I often find is missing is some historical context. A lot of talk about loneliness and lack of platonic or romantic relationships is basically limited to the recent past, if it even talks about the past at all. It seems like it would be helpful to look at what relationships and dating were like 10, 20, 30 years ago when it comes to talking about the problems or just general state of both today. So do you know of good sources of information concerning relationships in the past? If so, then why do you think they don't pop up in discussions about dating?

Almost all of my anime suggestions come from 2 friends. I went outside the circle for first time and got lucky with OddTaxi Episode. Apart from that I've pretty much only watched the big names like Death Note, One Punch Man, AoT, FMA and on other end Daily Lives of Highschool boys and Saiki K.

I realize OddTaxi was very much unusual for Anime, but I'd like to continue the trend. Anything fresh, and not from usual anime fold will be nice, so recommendations welcome!

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

This is an inherently political thread; please try to avoid antagonistic arguments and bickering matches. Comment threads that devolve into unproductive arguments may be removed so that the overall topic is able to continue.

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!

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!