Argument modes in PL/SQL

Q.1: Can the parameters of a method or function have different argument modes?

Answer:

Yes, several argument modes are permissible for parameters in a method or function. For instance, the same subprogram can contain both IN and OUT parameters.

Q.2: In PL/SQL, how can I declare parameters with argument modes?

Answer:

The syntax for declaring parameters with argument modes in a method or function is “parameter_name parameter_mode data_type”.

Q.3: Can I use argument modes with default values for parameters?

Answer:

In PL/SQL, default values for parameters with argument modes cannot be provided. Only parameters without argument modes are permitted to have default values.

Argument modes are basically used to describe the behavior of the formal parameters. There are three types of argument modes which are used in the sub-program, which are as follows –

1. IN Mode
2. OUT Mode
3. IN OUT Mode

Arguments are the values that are passed to the PL/SQL blocks, subprograms, or functions. Arguments allow you to manipulate data in a dynamic manner. Here are some examples of how to use arguments in the PL/SQL language: