Examlex
Tar sand is a type of sandstone in which viscous, asphalt-like hydrocarbons fill the pore spaces.
Back Up Current
The action of creating a copy of existing data or system settings to prevent loss in case of system failure or data corruption.
Save As Back Up
Save As Back Up is a process of saving a copy of a file or database under a different name or location to ensure data safety in case of loss or corruption.
Primary Key
A primary key is a unique identifier for each record in a database table, used to ensure that each entry is distinct and retrievable.
Principal Key
Another term for primary key, an attribute or set of attributes that uniquely identifies each record in a database table.
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