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A TDMS project plan is not a typical Information Technology project plan; therefore, a traffic data project has several unique characteristics:
The project will be developed in Oracle in all aspects. The Oracle 10g Database's Enterprise Edition will be used for the server. For development of ETL, and metadata repository Oracle 10g Warehouse Builder will be used. Report builder or discoverer will be used to create the reports that will be available using any web browser. The system will also be responsible for the data to clean on a regular basis. The operational data will be held in transaction-based systems with some function like equipment basic data, management and staff current data. Audit trial will also be managed.
When tables are created there will be some advanced indexing techniques will be used which will improve the data retrieval and overall performance of the system. Some views are to be created for the purpose of the enhancing the performance of the data.
Define the concept of Object Diagram An object diagram shows a set of the objects and their relationships with each other at a point of time. In a static view, object diagram
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
Design an algorithm to implement operations Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat
Aggregate functions Some of these functions are min, count, max, and avg. These functions help in getting consolidated information from a set of tuples. Example:
The indices are accumulated in the index files. The data is accumulated in the data files. Indices give fast access to data items. For example, a book database may be managed in th
Lost Updates : Suppose the two transactions T3 and T4 run simultaneously and they happen to be interleaved in the following way (suppose the initial value of X as 10000):
Determine the Objectives of object oriented design provide an overview of object oriented design; partitioning system to subsystems; describe how a software desig
What is meant by heuristic optimisation? Discuss the main heuristics that are applied during query optimisation. Ans: In heuristic optimization, heuristics are employed to r
Differance between Unordered and ordered file ? Unordered file do no has any sequence although ordered file has arranged in a few sequence and data are assigned in ordered form
what is the need of a log in dbms
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