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The use of declare in Oracle

The Oracle DECLARE statement is a keyword in the PL/SQL programming language used to declare variables, constants, cursors, or exceptions. Its main function is to define these objects in the program for use in subsequent code. The syntax of the DECLARE statement is simple and clear, and multiple objects can be declared as needed. By using these declared objects, various operations can be performed, such as calculations, querying the database, handling exceptions, etc.

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