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compare the features of oracle RDBMS with MySQL and Microsoft SQL server
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
A set of possible data values is called? A set of possible data values is called as domain.
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
Differance between Unordered and ordered file ? Unordered file do no has any sequence although ordered file has arranged in a few sequence and data are assigned in ordered form
what is the importance of back up files
The External or View Level The external or view level is the highest level of abstraction of database. It gives a window on the conceptual view, which permits the user to see
How external/conceptual mapping and conceptual /internal mapping is performed
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