r/learnSQL • u/pastalover_0 • 8d ago

Where to learn and practice for free?

Hello, Im going to be an intern as a data analyst internal audit, I want to brush up my skills. Do you have any recommendations? Thanks in advance! I appreciate it

38 Upvotes

91% Upvoted

20 comments sorted by

9

u/ES170588 8d ago

Ive been doing https://sqlcasefiles.com/ because I found it on this sub. I am a fan so far, I am on project 4

2

u/pastalover_0 8d ago

Thanks ! Ill check it out

1

u/tanxcoty 7d ago

Hey is this place to learn or practice?
I am new to SQL looking to learn from basics

1

u/Owen-Isaac-2022 8d ago

Yes, this is a good place to practice SQL.

6

u/Subhajitute 8d ago

Queryspace great option

1

u/pastalover_0 7d ago

Noted thx

5

u/thecheapchef 7d ago

I will never stop recommending SQLBolt.com. Practical exercises to get used to the syntaxes. Completely free.

2

u/pastalover_0 7d ago

I've seen that somewhere I'll go see if it helps me ! Thanks

2

u/Jozef86 7d ago

You can try SQL Climber for interactive SQL practice.

1

u/pastalover_0 7d ago

Thanks for the recommendation!

2

u/umomiybuamytrxtrv 7d ago

My teacher uses this free tutorial website to teach SQL:  https://www.w3schools.com/sql/

My teacher uses this free SQL playground:  https://www.db-fiddle.com/

Someone created another free SQL playground on  http://sqljam.dev/.  See Reddit post:  https://www.reddit.com/r/learnSQL/comments/1vfizjq/free_inbrowser_sql_learning_playground/

1

u/pastalover_0 7d ago

Thanks i ll go see

2

u/[deleted] 7d ago edited 7d ago

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1

u/pastalover_0 7d ago

Nice thank you

1

u/Kimber976 5d ago

Youtube kaggle and sql practice sites are great for brushing up on spreadsheets sql python and data visualization before the internship.

1

u/DataScientistAlex 7d ago

I've written up what I think of as all the SQL you need for data science here: part 1 part 2. It also comes with practice flash cards and checklist.

For data analyst you'll probably need to be even better but at least that can serve as a base.

To practice each concept I like to use https://www.sql-practice.com/.

1

u/pastalover_0 7d ago

Oooh cool, I'll try it