Kata Library

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99 Kata Found

7 kyu

SQL with Pokemon: Damage Multipliers

7,946sHale1 Issue Reported

8 kyu

SQL Basics: Simple WHERE and ORDER BY

26,982matt c1 Issue Reported

7 kyu

SQL: Right and Left

7,683PG1

Beta

Finding people with a speeding record

48Crafto Hohenvels

Status:Awaiting approval

Estimated Rank:
7 kyu

7 kyu

Easy SQL: Counting and Grouping

15,695PG11 Issue Reported

7 kyu

First Normal Form

7 kyu

Factorial Fun: Using PostgreSQL to Generate a Table of Factorials

5 kyu

The Most Dedicated Customers - 2000s Nostalgia

5 kyu

1,516pmatseykanets1 Issue Reported

6 kyu

Balance history

6 kyu

Lost Popularity

6 kyu

Analyzing Customer Rental Trends: Identifying Popular Movie Genres Across Multiple Months

6 kyu

Unlocking the Popularity Secrets of Children's Films: Analyzing Rentals

6 kyu

Rentals by Date Range

6 kyu

Film Category Ratings Breakdown

5 kyu

Top Five Movie Categories Rented At Each Store

438bornForThis1 Issue Reported

6 kyu

Exclude 'Adults only' films watchers

332bornForThis1 Issue Reported

6 kyu

The Peculiar Taste of Store Owner

5 kyu

SQL Basics: Simple PIVOTING data

7 kyu

Countries Capitals for Trivia Night (SQL for Beginners #6)

13,980MaikelNabil2 Issues Reported

7 kyu

SQL Basics: Simple JOIN with COUNT

20,387matt c

Beta

Candlestick Chart

20rsaryev3 Issues Reported

Status:Waiting for issues to be resolved

Estimated Rank:
4 kyu

Beta

SQL Basics: Simple BETWEEN and ORDER BY

617user3540621 Issue Reported

Status:Waiting for issues to be resolved

Estimated Rank:
8 kyu

6 kyu

Present XML data the SQL way

7 kyu

SQL with LOTR: Elven Wildcards

9,734sHale

7 kyu

SQL with Street Fighter: Total Wins

9,035sHale3 Issues Reported

7 kyu

SQL with Harry Potter: Sorting Hat Comparators

9,528sHale

7 kyu

SQL with Sailor Moon: Thinking about JOINs...

8,397sHale1 Issue Reported

7 kyu

GROCERY STORE: Real Price!

3,836baaart2 Issues Reported

7 kyu

GROCERY STORE: Support Local Products

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