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MS SQL Server- Update data

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Update statement in SQL Server is used to modify data already existing into a table or view.
The Update statement is used with the SET and WHERE clause.
We can update the single or multiple columns at a time and we cannot undo it once the update is executed.
There are two ways to update records.
Update statement Syntax in SQL Server:

UPDATE[database_name].[schema_name].table_name SET column1= new_value1,column2=new_value2,....[WHERE Clause];

database_name is the name of the database where the table is stored and where we are going to update data.
Schema_name indicates the schema to which the table belongs.
table_name is the name of the table in which we are going to update data.
SET indicates the column's names and their value to be updated.
WHERE clause is an optional clause that indicates the row where we want to update.

Example:

If we want to update the CGPA of the student with the name 'Ravi' in table 'student' and database 'University'.

UPDATE university.dbo.student SET CGPA=9.23 WHERE name='Savi';

SELECT * FROM student;

UPDATE university.dbo.Student SET Branch='CSE', CGPA=7.50 WHERE Name='Kavi';

SELECT * FROM student;

Open the SSMS.
In Object Explorer, Expand the database folder and then the table folder.
Select the table where you want to make changes and right-click on it. In the pop-up menu select Script Table as then Update to and then New Query Editor Window options from the list.
On clicking the New Query Editor Window, we will reach the following query page. Use the Query to update the table:

UPDATE [dbo].[Student]  SET [Name] = 'Ravi', [Branch] ='CSE',[CGPA]=9.86 
 WHERE [Id] = 'EN19CS301254';

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