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Oracle Tutorials - PL/SQL Named Program Unit
(Continued from previous topic...)
What Is a Named Program Unit?
A named program unit is a PL/SQL code block with an name. It consists of three parts:
- Declaration Part - Defining the program unit name, calling parameters, local variables and local procedures.
Declaration part is required.
- Execution Part - Defining execution logic with executable statements. Execution part is required.
- Exception Part - Defining error handling logics. Exception part is optional.
There are two types of named program units:
- Procedure - Has no return values.
- Function - Has a return value.
(Continued on next topic...)
- Is PL/SQL Language Case Sensitive?
- How To Enter Comments in PL/SQL?
- What Are the Types of PL/SQL Code Blocks?
- What Is an Anonymous Block?
- What Is a Named Program Unit?
- What Is a Procedure?
- What Is a Function?
- How To Declare a Local Variable?
- How To Initialize Variables with Default Values?
- How To Assign Values to Variables?
- What Are the Arithmetic Operations?
- What Are the Numeric Comparison Operations?
- What Are the Logical Operations?
- How Many Categories of Data Types?
- How Many Scalar Data Types Are Supported in PL/SQL?
- How To Convert Character Types to Numeric Types?
- What Are the Execution Control Statements?
- How To Use "IF" Statements on Multiple Conditions?
- How To Use "WHILE" Loop Statements?
- How To Use "FOR" Loop Statements?
- What Is NULL in PL/SQL?
- How To Test NULL Values?