Syncing is one of the fundamental processes that you need to know when working with databases. It's also called data synchronization and ensures that multiple databases are in sync. Data synchronization is the process of taking the information stored in one database and copying it across to another database. It allows you to change or add information without making any changes to the original database. When you use data synchronization, you can access your data from anywhere. You can skip the long process of creating a new database and copying all of your current information from one location, which can take days or weeks, depending on how much data you have at each location