Reenabahen chauhan

Junior Analyst

Has solved a first real set of interview questions.

Practicing since September 20261-day streak

Points

1,110

Questions solved

58

Projects finished

0

Longest streak

6 days

Badges

• First question
• 10 questions
• 25 questions
• 50 questions
• 3-day streak

Skills

Skill map

Every topic in the question bank, and how much of each one Reenabahen has worked through.

• Query foundations

  Learning · 32 of 69

  Reading a table and asking it a straight question.

  • Dates6/16
  • Conditional logic8/12
  • Strings0/11
  • Calculations4/10
  • NULL handling4/9
  • Filtering6/7
  • Logical operators4/4

• Combining data

  Learning · 10 of 36

  Putting tables together without losing or duplicating rows.

  • Joins6/15
  • Reshaping1/15
  • Subqueries2/5
  • Deduplication1/1

• Aggregation and windows

  Learning · 13 of 71

  Summarizing, ranking and comparing rows against their group.

  • Window functions4/32
  • Ranking2/15
  • Aggregations7/14
  • Running totals0/10

• Python foundations

  Learning · 2 of 21

  The data structures every Python interview leans on.

  • Arrays1/6
  • Lists0/5
  • Tuples0/3
  • Dictionaries0/3
  • Math1/3
  • Sorting0/1

• Algorithms

  Learning · 1 of 17

  The patterns behind the timed screening rounds.

  • Hashing1/8
  • Two pointers0/4
  • Binary search0/4
  • Sliding window0/1

Certificates

• Junior Analyst

  Earned Sep 29, 2026

  Open certificate

Projects

No Data Labs projects posted yet.