For 24/7 supermarkets, pharmacies, and cross-border transport fleets, taking a system offline for a scheduled maintenance window during business hours is simply not an option. A blocked database lock means cashiers cannot scan items and trucks cannot obtain transit clearance.
Writing a tech review, academic paper, or industry brief? Use the official citation with canonical backlink attribution:
Noaman, K. S. (2026). "Zero-Downtime Database Migration Strategies for Always-On Iraqi Retail and Logistics Operations." Karuzh Digital Products & Engineering. https://karuzh.com/insights/zero-downtime-pos-database-migrations
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