What is one advantage of using a relational database over a spreadsheet or flat file to store data?

A relational database is a digital database. It is collection of data items organized in tables from which data can be accessed or reassembled in many different ways without having to reorganize the database tables. There are several advantages of using a relational database over a spreadsheet or flat file to store data. Some of them are:
- No multiple record changes are needed
- The storage is more efficient storage
- It is simpler to delete or modify details.
- Complex queries can be carried out.
- Better security. 

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