Integrity Manager
Integrity constraints are a set of rules that checks whether a particular condition has been satisfied or not. It also ensures that the quality of data is preserved. So these integrity constraints help to prevent accidental changes to the data. Integrity Manager is a component of Storage Manager. It first checks the integrity constraints and then accordingly the data is modified. If the constraints are satisfied, then only the CRUD operation is allowed else it is not allowed.
Let us elaborate with the help of an example. Suppose a user wants to insert a roll number in the Students Database. The integrity constraint for the Roll Number is Primary Key. So when the user enters the Roll number, Integrity Manager first checks whether the Roll Number is unique or not. If it is unique, the record is inserted else it throws an error that the roll number should be unique. Integrity Manager ensures that the operation made on a particular part of data does not affect the other stored data.
Integrity Manager
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