An entity whose value does not change is typically called a constant. In various contexts:
- In mathematics and programming , a constant is a value that remains fixed throughout the execution or within a certain scope.
- In physics , a constant is a physical quantity believed to be both universal in nature and constant in time, like the speed of light or gravitational constant.
- In databases , a constant might refer to a fixed value assigned within a query or stored procedure that doesn’t change during execution.
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