Question: Suppose, lets consider the banking database. lets take PNC bank. It has many branches, For each branch, one database is there and overall one database.

Suppose, lets consider the banking database. lets take PNC bank. It has many branches, For each branch, one database is there and overall one database. If a change occurs in a branch database, it wont reflect in the main database. Because the tables are different for different branches. If we want to retrieve out account information. we can retrieve using account number directly because data is stored in tables based on account number.

Can you please explain me this example of relational database Model?

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