Lab 13.1 Creating and Using Functions
Lab ObjectivesAfter this Lab, you will be able to: |
Function Basics
Functions are another type of stored code and are very similar to procedures. The significant difference is that a function is a PL/SQL block that returns a single value. Functions can accept one, many, or no parameters, but a function must have a return clause in the executable section of the function. The datatype of the return value must be declared in the header of the function. A function is not context. You can think of it as a sentence fragment. A function has output that a stand-alone executable in the way that a procedure ...
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