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Why older data models are being replaced by new data modelling 100 words accepted#
What benefits can a company gain by managing its own information infrastructure and servicea
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
What are the General Transformation Rules for Relational operations? Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE 1. E
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
What are domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken fro
3 assignments combined in 1
Fourth Normal Form (4NF) When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued d
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
how many hourse have been spent on a certain project
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