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Cyber Transit Ltd keeps up-to-date information on the processing and current position of each dispatched item. Dispatched items are the main concern of the Cyber Transit product tracking information system. Dispatched items can be characterized by item number (unique), weight, size, destination, and final date of delivery. Dispatched items are received into the Cyber Transit system at a single retail center. Retail centers are characterized by their type, unique ID and address. Dispatched items make their way to their destination via one or more Cyber Transit transportation medium (i.e. flights, truck deliveries). These transportation medium are characterized by a unique schedule number, a type (e.g. flight, truck) and a delivery route.
Create an Entity Relationship diagram that captures this information about Cyber Transit Ltd.
Convert the ER diagram in figure above into its corresponding relational schema diagram.
intent locking
What are the three fundamental operations that are regular to MySQL Programs? a) Establishing a connection to the MySQL server b) Choosing a database. c) Disconnecting fr
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
Every School has many teachers and many students. Each student is assigned to one school and each teacher works for one school only. Each teacher teaches more than one subject but
If R1 and R2 are two union compatible relations or functions, then the result of R3 = R1 ∩R2 is the relation that contains all tuples that are in both the relations In other words,
In the architecture of a database system which external level used? In the architecture of a database system view external level used.
(a) Differentiate between information and data . (b) List and briefly explain five potential benefits of the database approach compared to conventional file systems. (c) Diff
Normalize the following tables upto and including the 3NF. Submit a 1 page printout of only the final set of normalized tables in Data Architect. Just use Data Architect to do the
1. Item based services will be charged fixed prices, and time-based will be charged variably depending on time. Such as per hour. Item-based: Fixed, pedicure, waxing, threading, fa
need a DBMS system on any data for assignment.
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