Kata Library: SQL Practice

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396 Kata Found

6 kyu

Most Common Words in Team Retrospectives

4 kyu

Reconstruct Service Access Timeline from Events

6 kyu

SQL Basics: Simple WITH

9,659matt c2 Issues Reported

6 kyu

🌍 Earth-Like Exoplanet Detection

6 kyu

Doors in the school

2,946eqlion2 Issues Reported

6 kyu

Oil Log: Highest 5-Row Window Sum

37bornForThis1 Issue Reported

6 kyu

Security Breach: Last Two Zone Accesses

6 kyu

Exact Match: Agents Sharing the Same Workload

Beta

SQL Legacy Cleanup: Detect Column Twins

Status:Ranking feedback needed

Estimated Rank:
4 kyu

Beta

Find Patients with a One-Mutation Difference

Status:Ranking feedback needed

Estimated Rank:
5 kyu

7 kyu

Finding people with a speeding record

324Crafto Hohenvels

8 kyu

Is it a palindrome?

74,067wichu1 Issue Reported

7 kyu

457,405jayeshcp1 Issue Reported

8 kyu

211,645wichu1 Issue Reported

3 kyu

SQL types: create a type

Language Features

Metaprogramming

8 kyu

Quarter of the year

135,050Orses

8 kyu

Opposite number

383,878sergioet11 Issues Reported

5 kyu

SQL for Marketing – Episode 1: Measuring Engagement Fatigue

7 kyu

SQL Basics - Position

12,096PG11 Issue Reported

7 kyu

GROCERY STORE: Logistic Optimisation

6,546baaart2 Issues Reported

Beta

Array madness @_@

Status:Ranking feedback needed

8 kyu

Remove First and Last Character

330,914Steadyx3 Issues Reported

8 kyu

248,668paulrichard1 Issue Reported

6 kyu

SQL Basics: Simple UNION ALL

12,903matt c

6 kyu

SQL Basics: Simple EXISTS

14,279matt c

7 kyu

44,219BattleRattle1 Issue Reported

7 kyu

Reduce My Fraction

5,467SavageWilliam

4 kyu

SQL for Marketing – Episode 2: Cohort-Based Funnel Drop-Off

44bornForThis2 Issues Reported

4 kyu

SQL for Marketing – Episode 3: First-Touch Channel Attribution

5 kyu

They’ll Be Back… or Will They? Finding Real Subscriber Churn

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