Definition - What does Data Access mean?
Data access refers to a user's ability to access or retrieve data stored within a database or other repository. Users who have data access can store, retrieve, move or manipulate stored data, which can be stored on a wide range of hard drives and external devices.
Techopedia explains Data Access
Oftentimes when using random access, the data is split into multiple parts or pieces and located anywhere randomly on a disk. Sequential files are usually faster to load and retrieve because they require fewer seek operations.
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