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Introduction
Inserting data
Modifying data
Deleting data
CRUD
14. Summary: CRUD

## Instruction

It's time to wrap things up! We have learned how to add, modify, and remove data from a database. In the SQL Basics in PostgreSQL course, you also learned how to SELECT data from a database.

This sequence of four operations is often referred to by the acronym CRUD:

• Create
• Retrieve
• Update
• Delete

Any application handling data will be able to do these four operations.

Remember, in PostgreSQL, you can:

• Create data with the INSERT command.
• Retrieve data with the SELECT command.
• Update data with the UPDATE command.
• Delete data with the DELETE command.

## Exercise

Click to continue.