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Differentiate between Primary and secondary storage?
Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used through the processing unit to temporary store the data, intermediate results, and the final results before storing to the secondary storage since the secondary storage devices are not directly accessible through the CPU. But, if we need to store data permanently then the secondary storage devices are needed. Secondary storage devices are slower than the primary storage devices.
Explain the two types of participation constraint. 1. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
Example - ALTER TABLE emp MODIFY (empno NUMBER (7));
Question: The following relational database schema corresponds to a part of a database used by the Registry Department of a university. DEPARTMENT (d#, d-name, head-of-dept)
Describe the primary key functions? Primary Key : The primary key is an attribute or a set of attributes in which uniquely identify a specific example of an entity. Every entit
sir, could anybody help me in getting complete information about the mentioned topic
For the question given below, you are required to submit design and implementation documentation as described over the page. Design, implement (in Java), test and document a set of
In a relation, tuples are not inserted in any definite order. Ordering of tuples is not defined as a part of a relation definition. Though, records may be structured later accordin
projects?
What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and
Explain Growing Phase of locking Growing Phase: In this phase the transaction can only obtain locks, but cannot release any lock. The transaction enters the growing phase as so
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