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Rank Schools Within Districts
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Rank Schools Within Districts

MediumSQL · PostgreSQL

Problem

How would you use SQL window functions to rank schools by average student score within each district?

Use the provided district, school, and student score data. Include schools with recorded scores and valid district assignments. Tied average scores must receive the same rank.

Output

  1. One row per eligible school.
  2. Columns: district_name, school_name, average_score, and district_rank.
  3. Sort by district name, rank ascending, then school name.

Schema

districts
ColumnTypeDescription
district_idPKINTUnique district identifier
district_nameVARCHAR(100)District name
schools
ColumnTypeDescription
school_idPKINTUnique school identifier
school_nameVARCHAR(150)School name
district_idINTAssociated district identifier
student_scores
ColumnTypeDescription
score_idPKINTUnique score record identifier
school_idINTSchool receiving the score
scoreINTStudent score on the assessment
Tablesdistrictsschoolsstudent_scores
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