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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
What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
management information system based on functional organisation
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
Design Of Distributed Databases: The distributed databases are mainly relational at local level. So a local database schema is the similar as that of a centralised database design
1. Staff (staffID --> availabilityID) 2. Services (servicesID --> itemBasedID --> timedBasedID) 3. TimedBased (timedbasedID--> priceid) 4. Clients (clientId, serviceId-->
A model in database system mostly defines the organisation of data or structure and a set of operations on that data. Relational model is a easy model in which database is represen
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
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