SQL & Databases·Practice drills 12

Drill 18: Rewrite it — Indexes and query plans

Rewrite the example in your own words or structure.

Beginner 5 min read Lesson 302 of 480 Challenge included
What you will be able to do
  • Rewrite the example in your own words or structure.

Practice task

Rewrite the example in your own words or structure.

indexes.sqlSQL
CREATE INDEX lessons_course_minutes_idx
ON lessons (course_slug, minutes);

EXPLAIN QUERY PLAN
SELECT title, minutes
FROM lessons
WHERE course_slug = 'css' AND minutes > 12
ORDER BY minutes DESC;
Your turn

Write your answer

Easy

Rewrite the example in your own words or structure.

TEXT · starter
Your answer…
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Lesson 302 of 480 · 0% of course