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Writing SQL Queries
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Writing SQL Queries

EasySQL · PostgreSQL

Problem

Curriculum Associates needs a quick extract from i-Ready Diagnostic results for reviewing strong Spring 2025 performance. Write a PostgreSQL query using only the iready_diagnostic_results table.

Requirements

  1. Return students whose administration is Spring 2025 and whose diagnostic_score is at least 500.
  2. Sort the results by diagnostic_score descending, then by student_id ascending to make ties deterministic.

Schema

iready_diagnostic_results
ColumnTypeDescription
student_idINTStudent identifier
student_nameVARCHAR(100)Student name
school_nameVARCHAR(100)School name
administrationVARCHAR(30)i-Ready Diagnostic administration period
diagnostic_scoreINTOverall diagnostic scale score
assessment_dateDATEDate the assessment was completed
Tablesiready_diagnostic_results
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CodePostgreSQL
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