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sqlWorkout

😌 SELECT 😌

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sqlWorkout

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I want to get better for Data Engineer / Data Scientist positions

u/ResponsibleBag785

I want to get better for Data Engineer / Data Scientist positions

MySQL

Hello everyone,

So I've studied SQL in University, Inwould consider myself somewhat good + I like it. I've done basic courses and some advanced. I manage to do some easy interview questions... but I want to get better.

Can you recomend me some resources where I can expand my knowledge:

* A lot of problems to solve so I can see typical templates.

With chatGPT even if I'm stuck I can get the idea. But yes, all tips are welcomed. Thank you :)

P.S. I don't mind some theory also. For example I don't know anything about indexes. I have difficulty understanding the Normal Forms etc

Created Nov 30, 2008

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r/SQL Rules

Be polite and civil

r/SQL is a community of professionals and hobbyists who are united in a love of data, analytics, and the like.

Let's embrace the things that we have in common. Don't be rude or unpleasant. Do not harass others. Don't resort to value judgments. Don't resort to personal attacks.

Do not post links to basic SQL tutorials

r/SQL does not allow links to basic tutorials to be posted. You should post these to r/learnsql instead.

Please see this discussion to understand why the community made this decision.

Tell us what DBMS / SQL variant you are using

When requesting help or asking questions, please flair your post with the DBMS (database management system) / SQL variant that you are using.

If you include any of the following in your title, your post will receive the appropriate flair automatically: MySQL, Oracle, MS SQL, PostgreSQL, SQLite, DB2, MariaDB

While naturally we should endeavor to work as platform neutrally as possible many questions and answers require tailoring to the feature set of a specific platform.

Provide as much context/background info as possible

If you are a student or just looking for help on your code, please do not just post your questions and expect the community to do all the work for you. We will gladly help where we can as long as you post the work you have already done or show that you have attempted to figure it out on your own.

Additionally, providing your current query (even if it is not functioning as intended), table columns, example data, and so forth will all make it easier for the community to assist you.

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If you are including actual code in a post or comment, please attempt to format it in a way that is readable for other users. This will greatly increase your chances of receiving the help you desire.

To format your code using reddit's built in code formatting, put 4 spaces at the start of each line.

We recommend using SQLFiddle to provide a useful development and testing environment for those who wish to fully understand your problem and help devise a solution.

No photos of lengthy code

Please see rule #3 - copy/paste lengthy code (and output, error messages, etc.) and format them.

Photographs of computer screens with code on them are inconvenient; they are difficult to read and mean others can't copy/paste to help you with solutions.

Make it easy for people to help you! Don't paste photos of screens.

No solicitation for others to do your homework

Do not post seeking assistance with homework questions of any kind (including take home interview content) without a demonstrable good faith attempt to find solutions on your own

No “How do I Start Learning SQL” Posts

We welcome all new interested members to our community. However, the forum is intendedfor requesting help with and discussing specific topics. Please check the wiki for resources for learning SQL as a beginner and be sure to checkout r/learnSQL

Learning SQL

A common question for newcomers is how to learn SQL. Please view the wiki for a list of online resources, or review existing posts about learning SQL.