How to Declare Variables in PL/SQL?
When writing PL/SQL code it is important to declare variables properly to store and manipulate data effectively. Variables act as containers for values and enable various operations on the stored data.
In PL/SQL, variables are declared using the DECLARE keyword within a block. The below methods are used to declare a variable in PL/SQL are as follows:
- Using Declare Variables in PL/SQL
- Using Initializing Variables in PL/SQL
- Using Variable Scope in PL/SQL
- Using Variable Attributes
Let’s understand each method one be one along with the Examples.
How to Declare a Variable in PL/SQL?
Declaring variables in PL/SQL is a fundamental step towards building powerful and efficient database applications. Variables act as placeholders for data which enable us to manipulate and store information within our PL/SQL programs.
Understanding how to declare variables is essential for writing effective and scalable code. In this article, we will learn about how to declare a variable with the help of various methods along with the syntax and examples.