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What do you understand by ACID?
- ACID (Atomicity Consistency Isolation Durability) is a quality sought after in a reliable database. Here's the relevance of each quality:
- Atomicity - It's an all-or-none proposition.
- Consistency - it ensures that your database is never left by a transaction in a half-finished state.
- Isolation - it keeps transactions separated from each other until they're finished.
- Durability - it ensures that database keeps a track of pending changes in a way that server can recover from an abnormal termination.
need a DBMS system on any data for assignment.
Group By clauses • It is used to group database tuples on the basis of definite common attribute value like as employees of a department. WHERE clause still can be used
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In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.
The domain that you will model in this assignment is that of courses and students at a university. So as not to make the task too large and unspecified, you will here get a descrip
Describe domain constraints. Domain constraints contain entity integrity and referential integrity. The domain is a set of values that might be assigned to an attribute. The en
Explain Authorization and Integrity Manager ? Authorization and Integrity Manager: Tests for the satisfaction of integrity constraints and checks the authority of users to acce
Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
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