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This report identifies and outlines my CIS 499 project named Traffic Data Management
Systems (TDMS). My goal is to design a replica of all traffic issues to be implemented in a database and this system will be maintained daily. We will design and implement a system for the Department of Transportation (DOT). This report provides the description of our system and ER diagram for the required database design.
All the data will be available online so can be viewed from any location by the authorized persons for analysis and decision making. A comment notice board will be implemented where the user can view all the data or filtered data according to the criteria given by the used. This feature will be implemented through oracle portal. Oracle report builder or discoverer will be used for creating the reports.
The database domain, Oracle server technologies for performance enhancement will be inclined to achieve a functional and efficient platform for the TDMS data analysis repository.
Explain Relational model and their use in DBMS? Relational Model - The relational model was first introduced through E.F. Codd of the IBM Research in the year of 1970. The mode
Benefits of heap files 1. This is a easy file Organisation method. 2. Insertion is somehow capable. 3. Good for bulk-loading data into a table. 4. Best if file
Benefits of Hashed file Organisation 1. Insertion or search on hash-key is quick. 2. Best if equality search is required on hash-key. Drawbacks of Hashed file
What is the use of rename operation? Rename operation is used to rename both relations and an attributes. It uses the as clause, taking the form: Old-name as new-name.
Client Server Databases- The concept behind the Client/Server systems is simultaneous, cooperative processing. It is an approach that presents a one systems view from a user's vie
Question: (a) Use the following business rules to produce the E-R diagram. You should clearly show all the minimum and maximum cardinality constraint on each side of the relati
define normalisation and functional dependency
What is equi join? Equi Join - It generates all the combinations of tuples from two relations which satisfy a join condition along with only equality comparison (=).
1. A company wants a report containing a breakdown of payroll by department. Input, which should be stored in 3 parallel arrays, includes each employee's department number, hourly
Consider the relations City (city_name, state) Hotel (name, address) City_hotel (hotel_name, city_name, owner) Answer the following queries in relational algebra (i) Find
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