Transaction In SQL

We use Transaction in sql to avoid accidental data loss.
The keywords used are Begin Tran, Commit Tran, Rollback Tran.

CodeProject Begin Tran - It is written in the beginning of the sql statements.
Commit Tran - Its is written after the sql statements.
Rollback Tran - It is executed if the user want to revert the changes.

EG:


BEGIN TRAN
UPDATE UiBaseTable
    SET
        Text          = 'Debrief Decision Saved successfully',
        TextKeyDescription    = 'Debrief Decision Saved successfully'
    WHERE
        TEXTKEY      = 'DebriefDecisionSaved'
       
GO

UPDATE UiBaseTable
    SET
        Text             = 'Country default saved successfully',
        TextKeyDescription    = 'Country default saved successfully'
    WHERE
        TEXTKEY   = 'SaveCountryDefault'   
           
GO

UPDATE UiBaseTable
    SET
        Text          = 'Vehicle Unreserved successfully',
        TextKeyDescription    = 'Vehicle Unreserved successfully'
    WHERE
        TEXTKEY       = 'VehicleUnReserved'

COMMIT TRAN

ROLLBACK TRAN

Here we are updating more than one statements. suppose i want to update all or nothing, so if any statement fails i can roll back the changes by executing  ROLLBACK TRAN.