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Coding
System design
AI coding
Object-oriented design
SQL
Technical knowledge
Behavioral
Select & Filter
7 questions
Aggregation
10 questions
Joins
10 questions
Conditional
Logic
10 questions
Dates & Strings
10 questions
Subqueries
5 questions
CTEs & Recursion
12 questions
Ranking Windows
10 questions
Running Totals &
Offsets
10 questions
Product Metrics
10 questions
Gaps & Islands
8 questions
102 questions
in 11 topics
SQL roadmap
Company
SQL roadmap
102 questions in 11 topics
All topics in order
Step 1
Select & Filter
7 questions
Step 2
Aggregation
Needs Select & Filter
10 questions
Joins
Needs Select & Filter
10 questions
Step 3
Conditional Logic
Needs Aggregation
10 questions
Dates & Strings
Needs Aggregation
10 questions
Subqueries
Needs Aggregation, Joins
5 questions
Step 4
CTEs & Recursion
Needs Subqueries
12 questions
Step 5
Ranking Windows
Needs CTEs & Recursion
10 questions
Running Totals & Offsets
Needs CTEs & Recursion
10 questions
Step 6
Product Metrics
Needs Conditional Logic, Dates & Strings, Running Totals & Offsets
10 questions
Gaps & Islands
Needs Ranking Windows, Running Totals & Offsets
8 questions