Saisie de Code · SQL
Composite Index
Accelerate a common query with a multi-column index.
Difficulte: Intermediaire · 10 Lignes · Licence: public-domain
CREATE INDEX idx_orders_customer_date
ON orders (customer_id, order_date DESC);
ANALYZE orders;
EXPLAIN SELECT *
FROM orders
WHERE customer_id = 42
ORDER BY order_date DESC
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