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In which form of relational database developer refers to a record?In a tuple form of relational database developer refers to a record.
What are advantages of object models? Object models are efficient for communicating with the application experts and reaching a consensus about the significant aspects of the p
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Describe the iterative and incremental life cycle For an iterative and incremental life cycle, two criteria are process and time. The main components of showing a project devel
WHERE and HAVING clause in SQL ? The WHERE clause is commonly used for implementing conditions on each tuple of the relation. The HAVING clause is used in combination along wi
Explain TPS concurreny executions stating their advantages in online business advancement
What is a query tree? Ans: A query tree, as well known as operator graph, is a tree data structure that corresponds to a relational algebra expression. It denotes the inpu
limitations and benefits in database tecknowlagy
Creation of Indexes Automatically: When a primary key or Unique constraint is show in a table definition then a unique index is formed automatically. Manually: User can
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
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