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Draw E-R diagrams demonstrating each of the following relationships (create three meaningful examples for each relationship): One-to-One, One-to-many, One-to-Optional Many, Optional Many-to-One, Optional Many-to-Optional Many. Show the relationships horizontally.
For each E-R diagram, state the relationship in words (for both, the forward path and the backward path).
A. Each employee is assigned to one and only one office. Each office is occupied by one and only one employee.B. Each cargo aircraft will serve from one to many distribution centers. Each distribution center is served by one and only one cargo aircraft.C. One systems analyst is assigned to anywhere from zero to many projects. Each project will be developed by one and only one systems analyst.D. One machine is undergoing anywhere from zero to one scheduled maintenance. Scheduled maintenance is being done to one and only one machine.E. Each salesperson is assigned to anywhere from one to many customers. Each customer may have from one to many salespersons.F. One home office has one to many employees. Each employee may be assigned from zero to one home office.G. Each passenger is flying to many destinations. Each destination will be visited by many passengers.
From information system point of view, we should take the key functions of organization and map them to strategic information. Do your companies follow this process or are steps skipped?
Prepare database design documents using the data definition, data manipulation, and data control language components of the SQL language.
post a ms sql server introduction message in the week forum. enter any information that is related to ms sql server
improved processesdatabases are installed to help solve problems improve processes or provide a benefit to the
q1. to what extent should end users be involved in the selection of a database management system and database
Draw an ER diagram for your database scenario. Design a set of 3NF tables for your database scenario.
Applying Data Mining techniques to publically available data produced by both Transpower and the National Institute of Water and Atmospheric Research (NIWA), from which a range of visualizations will be generated.
Briefly explain the ARIES recovery algorithm, including the main phases, main principles and key ideas behind the algorithm such as WAL protocol and checkpointing etc.
Explain the ‘Document Principle' as used in SAP. What information is presented in the ‘header' section of a document versus the ‘line item' section?
Your topic could come from a sub-problem of a cutting-edge research problem about these techniques (if you want to investigate and solve a technical problem), or a successful (or a planned) implementation in one of the above DBMSs (if you want to ..
Examples for small n are given bellow, where a small square box represents an unsuccessful search. Prove that leaves of any binary search tree are located in the bottom two levels.
One of the tenets of database development is to never permit developers to create or own objects during development. All objects are created by application owner and stored in that schema.
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