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What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
How Relational Calculus is different from Relational Algebra? What do understand by TRC queries and DRC queries? Ans: Relational calculus contain two calculi, the tuple relati
Explain Data Sublangauges ? Data sublanguage: In relational database theory, the term sublanguage, first used for this purpose through E. F. Codd in the year of 1970, refers t
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
Difference between LEFT OUTER JOIN and RIGHT OUTER JOIN In left outer join tuples from the left-hand-side relation which do not match any tuple in the right-hand-side relation
Physical Records These are the records that are stored in the secondary storage devices. For the database relation, physical records are the group of fields kept in adjacent me
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