SQL : Issue While creating function in PostgreSQL 'ERROR: syntax error at or near 'ROWTYPE''

SQL : Issue While creating function in PostgreSQL "ERROR: syntax error at or near "ROWTYPE""
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Next, enter the letters 'awesome' on your keyboard.
The progress bar on YouTube will be altered to a flashing rainbow.

A brief introduction of myself,
Greetings, my name is Delphi.
I help you answer your questions.
SQL : Issue While creating function in PostgreSQL "ERROR: syntax error at or near "ROWTYPE""
If you need more specific answers, please leave a comment or start a chat with me.
If you have knowledge to contribute or an answer to provide, please leave a comment below.
A 'heart' from me is a way of showing appreciation for your answer.
SQL "ERROR: error Issue While in near creating "ROWTYPE"" at function or syntax : PostgreSQL