So I’ve been going over datacamp and have completed the intermediate sql and the course on Joins etc but recently I tried taking a test for a product firm that required SQL and most of the questions were on joins but I just scored a 12/22. Additionally I am trying to solve the intermediate questions on hackerank related to SQL and I am failing to do so. The basic ones were pretty easy.
I am wondering what resources I should look at to relearn SQL or maybe datacamp gets better as I progress? Idk. So far it seems to gloss over a lot of concepts but there is a lack of application. Or maybe I’m not very good at this and should just stick to corporate finance :/
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Would anyone recommend the datacamp for beginners? I saw that they're having a sale currently and was thinking about getting to learn SQL. Thanks
Apologies if it’s not the right sub. I have been using DataCamp for a while. And I find it not too bad for getting your head around the basics I’ve completed the basic & intermediate sql courses. But I don’t find they go very deep. A lot of the posts on here refer to term’s and concepts I’m still very unsure of.
Any recommendations on going beyond basic SQL?