Drill 4: Key term — Changing data safely
Identify the key term in the example and define it.
What you will be able to do
- Identify the key term in the example and define it.
Practice task
Identify the key term in the example and define it.
BEGIN;
INSERT INTO lessons (id, course_slug, title, minutes, level)
VALUES (11, 'sql', 'Transactions', 16, 'Advanced');
UPDATE lessons
SET minutes = minutes + 2
WHERE course_slug = 'sql';
SELECT id, title, minutes
FROM lessons
WHERE course_slug = 'sql';
ROLLBACK;Your turn
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Identify the key term in the example and define it.
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