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What is the purpose of using parameterized cursors in PL/SQL?

Question

What is the purpose of using parameterized cursors in PL/SQL?

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Solution

Parameterized cursors in PL/SQL are used for several reasons:

  1. Reusability: Parameterized cursors can be used multiple times in your code. You can pass different arguments each time you open the cursor, making it more flexible and reusable.

  2. Efficiency: Instead of creating multiple cursors for different values, you can use a single parameterized cursor. This can make your code more efficient and easier to manage.

  3. Dynamic SQL: Parameterized cursors can be used to execute dynamic SQL statements. This can be useful when you need to execute SQL statements that are constructed at runtime.

  4. Flexibility: With parameterized cursors, you can customize the result set of the cursor based on the parameters passed. This gives you more control over what data is returned by the cursor.

  5. Code Maintenance: Using parameterized cursors can make your code easier to read and maintain. It can help reduce code duplication and make your code more modular.

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