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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
What is Cross Product? Simply Cross product is Binary Operator
The Locking Protocol: To manage concurrency related problems we use locking. A lock is mainly a variable that is associated with a data item in the database. A lock can be located
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
why are older data models are being replaced by new data models
Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
Discuss the mechanism to read data from and write to a disk? Disk read/write heads are mechanisms in which read data from or write data to disk drives. The heads have gone by
a project based on normalization with first, second and third normalization. There need to be a diagram also
Question: One of the tasks a database management system must perform is to ensure that the data is still intact in the face of software and hardware failure. This task is known
what do you mean by primary key constraint?
Explain the term- Data Flows Data Flows: A data flow connects output of an object or process to input of another process or object. It represents an in-between data value wit
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