Data persistence is the property that ensures information is written to non-volatile storage so it remains available and unchanged after power outages, system reboots, or crashes. Databases rely on this durability so that records are retained permanently until explicitly modified or deleted. Other characteristics-such as faster access, offline copies for users, or supporting diverse data types-may be desirable, but they are not what defines persistence.
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What is the difference between data persistence and data caching?
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How do databases ensure data persistence during power failures?
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What types of databases are typically used for ensuring data persistence?