Plan a database migration
Migrate production data with zero downtime
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I need to migrate [N_MILLION] rows from [OLD_STRUCTURE] to [NEW_STRUCTURE] with zero downtime. Create a multi-step migration plan including: SQL scripts, a progressive deployment strategy (expand/contract pattern), possible rollbacks, data validation tests, and an estimated execution time.
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Ajoutez une étape de « bench » sur un échantillon représentatif (ex. 1 % des lignes) pour calibrer le débit de migration et estimer le temps réel, car les verrous de table et l’indexation peuvent fortement varier selon la charge.
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