Database

Database refers a system where information is collected and stored in various formats (electronic, printed, graphic, audio, statistical, combinations) that can be easily identified and selected by a computer. The abbreviated form of “Database” is “DB”. If you have an address book with names stored in alphabetical order, that’s a database example. There are more complicated DB instances in different formats. Depending on configuration, a DB may automatically update, delete or expand old data whenever new data is inserted. These days, the DBs are typically managed by Database Management Systems (DBMS) and DBs have a preconfigured way of self-updating, querying the data they contain, and s process workloads to create and update themselves, querying their own data and testing other applications. ACID compliance, which stands for atomicity, consistency, isolation and durability, is offered by some Databases all in a bid to ensure consistency of data and the completeness of transactions. DBs are categorized into three levels namely internal, external and conceptual. The internal level has to do with operational matters; the external level specifies how users should comprehend data, while the conceptual level performs a unifying role, comprising generic data from all end users.

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