Difference Between Schema and Instance

Instances

An Instance is the state of an operational database with data at any given time. It contains a snapshot of the database. The instances can be changed by certain CRUD operations, such as like addition, and deletion of data. It may be noted that any search query will not make any kind of changes in the instances....

Schema

Schema is the overall description of the database. The basic structure of how the data will be stored in the database is called schema....

Difference Between Schema and Instance

Schema Instance It is the overall description of the database. It is the collection of information stored in a database at a particular moment. The schema is same for the whole database. Data in instances can be changed using addition, deletion, and updation. Does not change Frequently. Changes Frequently. Defines the basic structure of the database i.e. how the data will be stored in the database. It is the set of Information stored at a particular time....

Conclusion

In short, the schema is the blueprint of the database, while the instance is the actual data that is in the database. The schema is the database’s design, and the instance is the data it contains....