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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.
Domain Constraints Domain constraints are primarily formed for defining the logically correct values for an attribute of a relation. The relation allows attributes of a relatio
Question: (a) One of the steps in the five-step problem-solving model is implementation. Implementation is considered a key step in the problem-solving model. A problem may be
please i request for your assistance in developing a case-based online phone repair
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
Update Operations and Dealing with Constraint Violations There are three basic operations to be executes on relations: Insertion Deletion Update The INSER
Ask question #Minim 100 words accepted#what is recovery management component in database management system and how it is useful
What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
You have a friend that runs a motor bike club that holds racing events at various venues on weekends, on a monthly basis. Some venues are private race tracks and some are dirt trac
Secondary Indexes Let consider the student database and its clustering index and primary (only one will be applicable at a time). Now consider the state when the database is to
Represent the following scenarios with E-R diagrams drawn using the ER Assistant software. The diagrams should indicate cardinality and optionality of relationships. Transform each
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