Kata Library

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226 Kata Found

6 kyu

Conditional Count

7,633pmatseykanets2 Issues Reported

5 kyu

Relational division: Find all movies two actors cast in together

7,826pmatseykanets1 Issue Reported

7 kyu

SQL: Party Votes in N-Prefixed States

6 kyu

Youngest Team Members

6 kyu

The Great Data Entry Blame Game

7 kyu

SQL with Pokemon: Damage Multipliers

8,079sHale1 Issue Reported

6 kyu

Find Inventory Changes Between Two Dates

104bornForThis1 Issue Reported

5 kyu

Simple data migration: assortment statuses

6 kyu

Tracking Active Bookings Over Time

6 kyu

Building a User Leaderboard with Engagement Metrics

7 kyu

Identifying Mutual Likes in a Dating App

6 kyu

Finding Products Matching All Selected Tags: Parameterized Version

7 kyu

Finding Products Matching All Selected Tags

5 kyu

Data Structures

6 kyu

Runner Results with Position-Based Competitor Info

6 kyu

Daily Hospital Admissions and Discharges Report

7 kyu

Categorize and Count Job Applications Based on Status

5 kyu

Analysis of Consecutive Stock Price Increases

6 kyu

Examining Traffic Data to Track Criminal Conduits

7 kyu

Counting Interview Failures Without Using COUNT()

6 kyu

Identifying Peak Hours for Angry Customer Calls

157bornForThis1 Issue Reported

6 kyu

Employee Weekend Work: Counting Unique Weekends and Total Days Worked

6 kyu

Refactoring SQL Queries: part 2 (Pagination Disaster)

7 kyu

Uncover the Code: ABC Kata Solutions' Longest-Tenured Employees

7 kyu

Ten Years of Talent: Analyzing Employee Flux at ABC Kata Solutions

7 kyu

ABC Kata Solutions' Failures That Paved the Road to Success

8 kyu

SQL Basics: Simple WHERE and ORDER BY

27,244matt c1 Issue Reported

7 kyu

Uncovering ABC Kata Solutions' Most Extravagant Departmental Expenses

6 kyu

Monthly Landlord Revenue Report Generation

5 kyu

Check passwords by hashes

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