Comments : Introduction « PL SQL Programming « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. PL SQL Programming
3. Introduction

PL/SQL allows two types of comments: single and multi-line.

Single-line comments start with a delimiter -- and go to the end of the line, as shown here:

declare
  here you should declare variables,
  constants, etc.
   ...
begin
-- here you place your code
    ...
end;
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