Added Docs for Advance SQL Topics

[Adez017]

Description

Fixes #843

Type of Change

• New feature (e.g., new page, component, or functionality)
• Bug fix (non-breaking change that fixes an issue)
• UI/UX improvement (design, layout, or styling updates)
• Performance optimization (e.g., code splitting, caching)
• Documentation update (README, contribution guidelines, etc.)
• Other (please specify):

Changes Made

Added Docs for :
CTEs
Subqueries
Indexes
Window Functions

Dependencies

• List any new dependencies or tools required for this change.
• Mention any version updates or configurations that need to be considered.

Checklist

• My code follows the style guidelines of this project.
• I have tested my changes across major browsers and devices
• My changes do not generate new console warnings or errors .
• I ran npm run build and attached screenshot(s) in this PR.
• This is already assigned Issue to me, not an unassigned issue.

[vercel]

@Adez017 is attempting to deploy a commit to the recode Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. The estimated time for response is 5–8 hrs.

In the meantime, please provide all necessary screenshots and make sure you run - npm build run , command and provide a screenshot, a video recording, or an image of the update you made below, which helps speed up the review and assignment. If you have questions, reach out to LinkedIn. Your contributions are highly appreciated!😊

Note: I maintain the repo issue every day twice at 8:00 AM IST and 9:00 PM IST. If your PR goes stale for more than one day, you can tag and comment on this same issue by tagging @sanjay-kv.

We are here to help you on this journey of open source. Consistent 20 contributions are eligible for sponsorship 💰

🎁 check our list of amazing people we sponsored so far: GitHub Sponsorship. ✨

📚Your perks for contribution to this community 👇🏻

1. Get free Consultation use code recode50 to get free: Mentorship for free.

2. Get the Ebook for free use code recode at checkout: Data Science cheatsheet for Beginners.

3. Check out this weekly Newsletter: Sanjay's Newsletter.

If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊

[github-actions]

Synced data from Linked Issues

Labels:

• enhancement
• level 1
• recode
• hacktoberfest-accepted

Assignees:

• Adez017

Milestones:

• recode:launch 3.0

[Adez017]

Hi @sanjay-kv , take a look and also i request if possible add level 3 here as its a complete end to end implementation.

[iitzIrFan]

LGTM ! @Adez017
@sanjay-kv Check once as it is docs work and rest is ready for merge.

[Adez017]

could we get level 3 here ? @iitzIrFan

[iitzIrFan]

@sanjay-kv > could we get level 3 here ? @iitzIrFan

[Adez017]

The conflicts also has been resolved @sanjay-kv

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
recode-website	Ready	Preview	Comment	Oct 9, 2025 10:56am

[Adez017]

@sanjay-kv please add the gssoc label