What are the different types of Oracle Database objects?

Vaibhav Kothia May 26, 2023 0 Comments

1. Tables: A table is a collection of related data stored in rows and columns. For example, an Employee table may contain columns for employee ID, name, salary, and department.

2. Views: A view is a virtual table that contains data from one or more tables. For example, a view can be created to display only the employees in the Sales department.

3. Indexes: An index is an optional structure associated with a table to speed up the retrieval of data. For example, an index can be created on the Employee table to quickly look up an employee’s record based on their employee ID.

4. Sequences: A sequence is a database object used to generate unique numeric values. For example, a sequence can be used to generate the next employee ID for a new hire.

5. Synonyms: A synonym is an alias for a database object. For example, a synonym can be created for the Employee table so that it can be referenced using a different name.

6. Stored Procedures: A stored procedure is a set of SQL commands that are stored in the database and can be executed as a single unit. For example, a stored procedure can be used to calculate the total salary for all employees in a given department.

7. Triggers: A trigger is a stored procedure that is executed automatically when a data manipulation event occurs. For example, a trigger can be used to automatically update the salary of an employee when their job title is changed.

What are the different types of Oracle Database objects?

Vaibhav Kothia May 26, 2023 0 Comments

1. Tables: A table is a collection of related data stored in a structured format within a database. For example, a customer table might contain the columns customer_id, first_name, last_name, email, and address.

2. Views: A view is a virtual table based on the result set of an SQL statement. For example, a view might contain all customer records from the customer table who have an email address.

3. Indexes: An index is a performance-tuning method of allowing faster retrieval of records. For example, an index on the customer_id column of the customer table would allow faster retrieval of customer records.

4. Sequences: A sequence is an object used to generate unique numbers. For example, a sequence might be used to generate customer_id numbers for new customer records.

5. Stored Procedures: A stored procedure is a set of SQL statements that can be stored in the database and executed as a single unit. For example, a stored procedure might be used to generate a report based on a set of parameters.

6. Triggers: A trigger is a stored procedure that is executed when a certain event occurs. For example, a trigger might be used to update a customer’s address when their record is updated in the customer table.