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Write the syntax of creating an INDEX ? Syntax of Creating an Index: CREATE [BITMAP] [UNIQUE] INDEX ON ( [, ] . . .);
What are the three types of data sources used with ODBC? An ODBC file data source is a file that can be shared between database users. An ODBC system data source is one that is
WHAT IS DBMS
Define the notation for classes and atrributes The notation for class, attribute, and operations are shown below: Figure: Class with attributes and operations A
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
assignment
Explain the term- Periodic recomputation Periodic recomputation: Base values are often updated in bunches. Sometimes, it is possible to just recompute all derived attributes p
Why is database design important?
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
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