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A Structure of a dependency diagram
Explain the main advantages of DBMS over File Oriented System ?
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
What are the physical characteristics of magnetic disks? Ans: A magnetic disk is a circular plate or platter of plastic or metal that is coated with magnetizable material lik
Designing the fields in the data base The following are the considerations one has to remain in mind while designing the fields in the data base. Coding, compression, en
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
Define an abstraction by which relationships are treated as higher level entities Ans: Aggregation. It is an abstraction by which relationships are treated as higher level
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