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Explain What is Relation?
A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
What are three components of the schema architecture proposed by ANSI/SPARC? The three component schema architecture proposed by ANSI/SPARC is as given below: External sche
Objectives Define the terms RECOVERY and INTEGRITY; Define Recovery Techniques; Explain Error and Error detection techniques, and Define types of Authorisation.
data models are being replaced over years. Reasons and why does that happen?
Explain sorted File with advantages? Sorted file The sort utility shall perform one of the subsequent functions: 1.Sort lines of all the named files together and write the
Database Errors: An error is said to have occurred if the implementation of a command to manipulate the database cannot be successfully finished either due to inconsistent data or
Properties of a Transaction A transaction has four main properties. These are: Atomicity Consistency Isolation or Independence Durability or Permanen
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
What is storage manager? A storage manager is a program module that gives the interface among the low level data keeps in a database and the application programs and queries su
what is the relationship between receipt and owner entities in computer sales and service company
prototype of a distributed information system for a national car part retail outlet chain.
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