What Is an Anonymous Block

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What Is an Anonymous Block? - Oracle DBA FAQ - Understanding PL/SQL Language Basics

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A

An anonymous block is a PL/SQL code block with no name. It consists of three parts:

Declaration Part - Defining local variables and local procedures. Declaration part is optional.
Execution Part - Defining execution logic with executable statements. Execution part is required.
Exception Part - Defining error handling logics. Exception part is optional.

Here how a complete anonymous block should look like:

DECLARE 
  -- Declaration statements
BEGIN
  -- Executable statements
EXCEPTION
  -- Error handling statements
END;

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