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How persistent programming languages differ from traditional programming languages?
Database languages vary from traditional programming languages in that they directly manipulate data that are persistent-that is, data that carry on to exist even after the program terminated. Relation in a database and tuples in a relation are instance of persistent data. In contrast, the only persistent data that traditional programming languages directly manipulate are files.
explain various steps uses in evaluation and maintenance of MIS.
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A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
Due date for May 8
Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chass
what is Mapping Constraints? with examples
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