How to use semicolons correctly when writing custom functions in MySQL?

Question

MySQL

Take, for example, this simple function:

CREATE FUNCTION MyFx(`MyArg` VARCHAR(255)) RETURNS VARCHAR(255)
  DETERMINISTIC
BEGIN
  RETURN (SELECT `val` FROM `table` WHERE `arg` = `MyArg`);
END

Works but looks ugly. How to arrange; to a strict standard?

Answer 1

Is there a strict standard for procedural extensions of the SQL language? O___O And for a long time? I missed something...
Why do you want to use procedural SQL? This is the dark side of the Force, think twice - is it worth it?
Total:
In the procedure body, a delimiter is placed after each expression.
The rest of the declaration of the procedure is written according to BNF .
An example is here .
In order to use the separator in the body of the procedure, it is replaced when defining the procedure, how to do this is shown in the examples at the link.