
There’s been a backlog of unsolved cases piling up in the Minor Crimes Division of the Los Zorangeles Police Department and we’ll need a Database Detective to help solve them.
We’ll need you to analyze clues and manipulate data using SQL, a database querying language, to figure out who perpetrated crimes from as minor as littering to as serious as not checking out of a hotel after the check-out time.

Don’t worry! This role is intended to be accessible for those without any SQL experience, so each Database Detective is given an introductory textbook when they start! This short textbook is less than 20 pages and explains everything that’s needed to solve each case.
If you still have trouble writing queries, our comprehensive error messaging system will tell you exactly where your query went wrong, making it easy to correct your mistakes.
Still not enough? Each Database Detective is assigned an assistant who’s ready to answer any questions you might have, whether they be about the case itself or the SQL queries you’ll need to write!


Understanding how to manipulate data using SQL is not the only part of being a Database Detective! Your job will also require you to piece together evidence and clues, just like a real detective! Further on in your Database Detective career, you’ll have to sleuth through the internet and piece cases together yourself.
2.下载完成后,右键.rar文件并点击解压到当前文件夹(你必须使用WinRAR或7-zip)
3.双击进入解压好的文件夹,找到.exe文件并运行
4.玩.如果遇到丢失.dll错误,找到Redist或_CommonRedist文件夹,安装里面的程序
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