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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.
What is called a query -execution engine? The query implementation engine takes a query evaluation plan, implements that plan, and returns the answers to the query.
random file orgnization
Describe the Composite Key Composite Key: Sometimes one key is not enough to uniquely recognize a row. E.g. in a single class Roll is enough to search a student, but in the w
Submit the table creation statements (including constraints) for the Database Model. Submit them all in a single script file. Also submit a document explaining what test data yo
Explain the Attribute inheritance Ans: Throughout the rendering of the objects in a view, attribute sets of objects higher in the view hierarchy are inherited via objects below
each publisher has uniqe name a mial addrs are also kept on each pubisher.a publisher publish one book.a book publish y one publisher.book identified by isbn.each book writn by one
read-set(T) : Each data items that are read by a transaction T Timestamps : for all transaction T, the start-time and the end time are reserved for all the three phases.
Which file organization provides very fast access to any arbitrary record of a file? Hashed file organization provides very fast access to any arbitrary record of a file.
(a) Provide the description of the following ODMG schema in the Object Definition Language (ODL). (b) Based on the above object database, write the following queries i
Removing a Synonym: DROP SYNONYM D30;
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