11 votes

Fortnightly Programming Q&A Thread

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?

4 comments

  1. [4]
    ianw
    Link
    Is there a generally accepted series of exercises to brush up on programming knowledge? I took CS classes in college and have been lightly scripting in my career since, but I’ve been much more...

    Is there a generally accepted series of exercises to brush up on programming knowledge? I took CS classes in college and have been lightly scripting in my career since, but I’ve been much more focused on systems/aws admin type stuff. I’m looking for a new job now, and a lot of them want a bit more programming ability than I have, so I’m looking for a refresher. Thanks!

    2 votes
    1. gpl
      Link Parent
      I have been recommended Leetcode in the past and my impression is that its somewhat generally accepted. I just made an account the other day because I would like to brush up for my eventual next...

      I have been recommended Leetcode in the past and my impression is that its somewhat generally accepted. I just made an account the other day because I would like to brush up for my eventual next job search.

      4 votes
    2. space_cowboy
      Link Parent
      check out exercism. I've been using it to gain some skill in a new (for me) programming language. It's great - they give you the problem, set up automated tests for you so you can harden your...

      check out exercism. I've been using it to gain some skill in a new (for me) programming language. It's great - they give you the problem, set up automated tests for you so you can harden your implementation, and they have a cross-platform cli tool that makes it easy to download and upload exercises. And reviewing the test code prepares you for test-driven development.

      3 votes
    3. gf0
      Link Parent
      Besides the already mentioned ones, I found Advent of Code a good one as well, and it might be a bit more motivating.

      Besides the already mentioned ones, I found Advent of Code a good one as well, and it might be a bit more motivating.

      3 votes