Change name of variable binding and the performance

I read the use of bind variables is very good for performance because DB Oracle uses the existing execution plan and not able to analyze the query again.

If I change the name of the variable, the DB will analyze this new?

In the example, if my request is:
select * from customers where customerId =:id;
and I change to:
select * from customers where customerId =:customerId;
the second query will be parsed or not?

The 10g Performance Tuning Guide describes the 'cursor sharing criteria' and gives a clear example:

5 bind variables in the SQL statements must correspond to the name, the data type and length.
For example, the following statements cannot use the same shared SQL area,
because bind variable names can be distinguished:

SELECT * FROM employees WHERE department_id =: department_id;
SELECT * FROM employees WHERE department_id =: dept_id.

Kind regards
Bob

Tags: Database

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