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Top 50 Rows and Min Values
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Top 50 Rows and Min Values

MediumSQL · PostgreSQL

Problem

Write SQL queries to retrieve the top 50 rows and the minimum two values from a specific column

Asked in the Technical stage. Use the provided case tables and treat priority_score as the specific column.

Output

  1. Return one combined result set with result_type, case_id, case_title, priority_score, created_at, and category_name.
  2. Include the 50 most recent cases, ordered by created_at descending and case_id descending for ties, followed by the two smallest distinct non-null priority_score values in ascending order.

Schema

case_records
ColumnTypeDescription
case_idPKINTUnique case identifier
case_titleVARCHAR(150)Case title
category_idINTReferenced case category
priority_scoreINTCase priority score
created_atDATECase creation date
case_categories
ColumnTypeDescription
category_idPKINTUnique category identifier
category_nameVARCHAR(80)Category name
Tablescase_recordscase_categories
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