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What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
A database will be made to store information about patients in a hospital. On arrival, each patient’s personal details (name, address, and telephone number) are recorded where poss
Explain Candidate Key and Super Key A super key is a set of one or more than attributes that, taken collectively, permits us to identify uniquely a tuple in the relation. Wher
I need web security expert , website management Project Description: i want professional for the below . website management server management database management
Let us now make the E-R diagram for the student database as per the explanation given in the previous section. We can also states the overall logical structure of a database usi
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
What is NULL? Simply NULL means not in value.
Draw an ER diagram that represents the information described below. Show all entity sets, relationship sets, primary keys, and the mapping cardinality of the relationship sets.
Consider a database application that deals with an Employee relation with information such as SIN, name, data of birth (DOB), and DID (the ID of the department at which the employe
Give some encryption techniques? A) DES B) AES C) Public key encryption
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