Kata Library: SQL Practice

FEATURED TAGS

307 Kata Found

5 kyu

1,642pmatseykanets

4 kyu

283BattleRattle

4 kyu

Developer of the Day

5 kyu

Employees and managers: part 4 (Cycle Detection)

6 kyu

Users' pets and JSON data: Part 1

5 kyu

SQL Statistics: MIN, MEDIAN, MAX

6,346matt c1 Issue Reported

6 kyu

Films selection with a twist

6 kyu

Most Common Words in Team Retrospectives

4 kyu

Reconstruct Service Access Timeline from Events

6 kyu

SQL Basics: Simple WITH

9,835matt c2 Issues Reported

6 kyu

🌍 Earth-Like Exoplanet Detection

6 kyu

Oil Log: Highest 5-Row Window Sum

61bornForThis1 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

464Crafto Hohenvels

5 kyu

SQL for Marketing – Episode 1: Measuring Engagement Fatigue

7 kyu

SQL Basics - Position

12,265PG11 Issue Reported

7 kyu

GROCERY STORE: Logistic Optimisation

6,670baaart2 Issues Reported

Beta

Array madness @_@

Status:Ranking feedback needed

6 kyu

SQL Basics: Simple UNION ALL

13,030matt c

6 kyu

SQL Basics: Simple EXISTS

14,439matt c

4 kyu

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

50bornForThis2 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

Beta

SQL for Marketing – Episode 4: Linear Multi-Touch Attribution

10bornForThis1 Issue Reported

Status:Waiting for issues to be resolved

Estimated Rank:
4 kyu

6 kyu

One House, Many Claims: Detect Duplicate Address Applications

6 kyu

Conditional Count

8,037pmatseykanets2 Issues Reported

5 kyu

Relational division: Find all movies two actors cast in together

8,217pmatseykanets1 Issue Reported

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