To query a user's mobile phone and WeChat number, the following SQL statement can be used.

In the mobile internet arena, APP operation specialists are like "gardeners" 🌱 of the user ecosystem—responsible for helping seed users take root and grow, while also ensuring mature users bloom and ...

HackerRank isn’t just a random collection of problems; they’ve organized their SQL section pretty well. You can find ...

The "pure SQL" part is important. There have been attempts to get Doom-like games up and running in the past. The excellent ...