The separate identity allows the database definition to be changed without affecting related applications is known as DATA.
Step-by-step explanation:
Normally nowadays program and database are keeping separately. MySQL server, mongo dB, oracle, sql server extra installed separate followed folder or separate drive in operating system.
So software program just use connectivity technology to add or update or delete information from in the database. Form or report just access the data from database and produce required output.
Normal SQL database will stored as records as rows in tables. Normally database can been access through database application directly to update records such as SQL PLUS, MYSQL workbench etc.