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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
What is a super key? A super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity set.
Question : (a) Explain with the help of appropriate examples the difference between ‘Data' and ‘Information'. (b) A digital image is an array of pixels, where each pixel h
The database application project (DAP) for this assignment consists of the creation of a fully functional Microsoft Access database application for a real client. I recommend you s
DISADVANTAGES OF RDBMS
What are the purpose for having variable length records? What kinds of separator characters are required for each? Variable-Length Records - Variable-length records are thos
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
What will be create when a primary key if combined with a foreign key? A primary key if combined with a foreign key it creates Parent-Child relationship between the tables that
State about the Tables- DBMS Data is stored in columns and rows (much like a spreadsheet -main difference is how data is organised). Every row in a table is known as a record
What is Derived and stored Attribute? Derived and Stored Attribute - In a few cases, two or more attribute values are associated, for example, Age and BirthDate attributes of a
An important first step to the statistical analysis of data is to "get to know your data". The following tasks should contribute to this. (a) To the right of the dataset cons
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