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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.
Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati
Do the 11.1 11.1 Credit Card Use. Consider the following hypothetical bank data on consumers’ use of credit card credit facilities in Table 11.3. Create a small worksheet in Exce
The JOIN operation is applied on two relations. When we want to choose related tuples from two given relation join is used. The join operation need that both the joined relations m
Define raid? Briefly explain it? A range of disk organization methods, collectively called redundant arrays of independent disks (RAID) o Improvement of reliability throug
Define Aggregate functions and what aggregate functions supported by the MySQL To calculate a summary value from a set of individual values and uses one of the functions known
Describe briefly models which define the operations on classes. The three models which are used to define operations on classes are as: Object Model = data dictionary + Obje
Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st
By which techniquesTransaction processing is associated? Transaction processing is associated by producing detail, summary, or exception reports and recording a business activi
Define the concept of aggregation. Give two examples where this concept is useful. Ans: Aggregation transforms a relationship among the objects into a higher-level object. A
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an ex
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