What does it mean when I say Prepared statement is pre-compiled?

Question

I am using MySQL in Java. I don\'t have a good understanding of PreparedStatement.
I know it is better to use PreparedStatem

Answer 1

It is already translated into code the database server understands. Only placeholders are left for the variables you are inserting.

For example a Java program also has to be compiled from source code to byte-code, where the soruce code is the human readable for of the program and the bytecode is the representation if the source code which is also understood by the machine