Subha Sarkar

Intern

Practicing since October 20261-day streak

Points

300

Questions solved

14

Projects finished

0

Longest streak

2 days

Badges

• First question
• 10 questions

Skills

Skill map

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

• Query foundations

  Learning · 3 of 69

  Reading a table and asking it a straight question.

  • Dates2/16
  • Conditional logic0/12
  • Strings0/11
  • Calculations0/10
  • NULL handling0/9
  • Filtering1/7
  • Logical operators0/4

• Combining data

  Learning · 5 of 36

  Putting tables together without losing or duplicating rows.

  • Joins2/15
  • Reshaping1/15
  • Subqueries1/5
  • Deduplication1/1

• Aggregation and windows

  Learning · 3 of 71

  Summarizing, ranking and comparing rows against their group.

  • Window functions1/32
  • Ranking0/15
  • Aggregations2/14
  • 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

Projects

No Data Labs projects posted yet.