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Fifth Normal Form (5NF)
These relations still have a difficulty. While defining the 4NF we mentioned that all the attributes depend upon each other. Whereas creating the two tables in the 4NF, although we have preserved the dependencies among Vendor Code and Item code in the first table and Vendor Code and Item code in the second table, we have lost the relationship among Item Code and Project No. If there were a primary key then this loss of dependency would not have happened..
Why older data models are being replaced by new data modelling 100 words accepted#
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
examples of fields in a database
What is a Name? A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it
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Events4Fun is an event management company in Europe with branches in South America as well. The company is well-known for its efficiency, good-quality services, and affordable char
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Explain the two types of participation constraint. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
project on dbms
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
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