Persistence of data refers to the quality or characteristic of data being retained or preserved over time, even after the program, system, or device that created or stored it has been terminated, shut down, or no longer actively processing it.
When we generate digital content, it's straightforward to upload but significantly more challenging to erase. Individuals' experiences are documented via the gadgets they utilize, such as debit cards, smartphones, gaming consoles, and computers. Communities and individuals may evolve, yet the information persists, narrating tales that we might otherwise opt to overlook.
There are various methods and technologies used for data persistence. Here I will provide some common approaches.
- File Systems: Storing data in files on disk is one of the most straightforward methods of persistence.
- Embedded Databases: Embedded databases are lightweight databases that are integrated into an application's runtime environment.
- Databases: Databases are specialized systems designed for efficient data storage and retrieval.
- Key-Value Stores: Key-value stores are simple data stores that associate keys with values.
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