Variable Usage

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Variable Usage

Variable Usage

Variables can be created and modified in a variety of ways. To create a variable, you declare it in the DECLARE section of the PL/SQL block. Declaring a variable allocates storage space for the value it contains, specifies its data type, and sets up a reference to the value. Once a variable has been declared it is eligible to be assigned a value. Variable assignment at the time of declaration is known as initialization.

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