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Write short notes on Schema diagram. A database schema along with primary key and foreign key dependencies can be depicted pictorially by schema diagram. Every relation appea
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
Drawbacks of Database systems ?
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
Explain controlled redundancy? Controlled redundancy : The replication of data within the data warehouse for the purposes of improved data access or understand ability.
What is an Operand? The data on which the operation is to be performed is known as an Operand
What are the time stamps associated with each data item? W-timestamp (Q) denotes the largest time stamp if any transaction that implemented WRITE (Q) successfully. R-timesta
Explain Hashing techniques The hashing techniques can be categorized as: Static Hashing Techniques - In this method, the data can be viewed a collection of buckets, along with
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
what are the main characteristics of database
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