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Deleting Rows | Updating & Deleting Data
Introduction to SQL
course content

Course Content

Introduction to SQL

Introduction to SQL

1. Getting Started
3. Sorting Data
4. Populating a Database
5. Updating & Deleting Data

book
Deleting Rows

We can conditionally select and delete rows from a table using the DELETE statement.

Following is the syntax of the DELETE statement:

The DELETE statement selects rows from table_name based on a condition and deletes them.

Example: Removing Graduated Students

Consider a table students with the following columns name, age, grade, score, and graduation_year.

We would like to delete all the rows from the table where the graduation_year is less or equal to 2024, since those students have already graduated and we no longer want to retain their data.

This can be done using the following query:

Demonstration:

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Section 5. Chapter 5
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