Yogesh Chauhan's Blog

How to Commit and Rollback Changes in SQL?

in SQL/MySQL on January 8, 2020

Whenever we execute the INSERT, UPDATE or DELETE statements database adds them to transactions. It's like a temp file.

A transaction is a group of all those statements which need to be executed successfully before we make any changes to database.

But those changes are not permanent.

If we want to make changes to database permanent, we need to use commit and to undo all those changes we can use rollback.

Take a look at the following SQL statement.

INSERT INTO invoices VALUES (565,66, '986354', '2014-02-31', 694, 9, 6, 6, '2017-03-17', null)

1 row inserted

The query above will insert a single row into invoices table. If you use SELECT after inserting the row, you will be able to see the data from the invoices table and will be able to fetch it. 

But what if someone else is using the same database?

That's why we need commit statement. It makes the changes permanent and all the user accessing the database will be able to see changes. 

The following statement will make the changes permanently after inserting those data.



That's it.

If you want to undo the changes use the following statement:


rollback complete


Most Read

#1 How to check if radio button is checked or not using JavaScript? #2 How to add Read More Read Less Button using JavaScript? #3 Solution to “TypeError: ‘x’ is not iterable” in Angular 9 #4 How to uninstall Cocoapods from the Mac OS? #5 PHP Login System using PDO Part 1: Create User Registration Page #6 How to Use SQL MAX() Function with Dates?

Recently Posted

#Jan 17 4 advanced ways to search Colleague #Jan 16 Colleague UI Basics: The Search Area #Jan 16 Colleague UI Basics: The Context Area #Jan 16 Colleague UI Basics: Accessing the user interface #Jan 14 How to display a student’s individual transcript in Colleague? #Jan 11 How to install PuTTY on a MacOS?
You might also like these
How to create a simple drop down menu using JavaScript and CSS?CSSWhat is HTMLUnknownElement?HTMLHow to position an image on top of another image using CSS?CSSSpecificity of attribute selectorsCSSObject destructuring in JavaScript: Unpacking fields from objects passed as function parameterJavaScriptControl Scrolling with CSS Scroll SnapCSS