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Describe the responsibilities of the DBA and the database designer ?
The responsibilities of DBA and database designer are:1. Planning for the database's future storage needs2. Describing database availability and fault management architecture3. Defining and forming environments for development and latest release installation4. Creating physical database storage structures after developers have designed an application5. Constructing the database6. Determining and setting the physical and size locations of data files7. Evaluating latest hardware and software purchase8. Researching, testing, and recommending tools for Oracle development, database administration, modeling, and backup and recovery implementation, as well as planning for the future9. Giving database design and implementation 10.Understanding and employing the optimal flexible architecture to ease administration, permit flexibility within managing I/O, and to increase the capability to scale the system
Events4Fun is an event management company in Europe with branches in South America as well. The company is well-known for its efficiency, good-quality services, and affordable char
explain thee diffrent types of data models
Define the Query optimisation The query parser commonly generates a standard initial tree to correspond to an SQL query, with no doing any optimization. Such type of a canonica
Which operations need the participating relations to be union compatible? A UNION, INTERSECTION and DIFFERENCE operations need the participating relations to be union compatibl
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
Build a database application for a sports league. Assume your application is to keep track of teams and equipment that is checked out to teams. Explain the steps that is needed and
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
Write a short note on built in function in QBE? Built in function in QBE: QBE involves various built in functions like AVG, MAX,MIN,SUM and CNT. We must prefix these operator
In this assignment, you will create a program that works with multiple tables. In this assignment, you will work with the factory and sales tables. 1. Create a new project nam
differences between a classified catalog and a dictionary catalog
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