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differences between a classified catalog and a dictionary catalog
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
what is cascading? what is rollback cascading? please explain in detail
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
Explain CNT in the respects of QBE ? CNT: It is one of the aggregation commands given in QBE. It is used to identify number of tuples
entity relationship diagram for online examination system
What is the archtetype/instance pattern? The archetype/instance pattern happens when one entity tracks occurrences of another entity. A common example is the relationship among
Determine the term- Active values An active value is that has dependent values. Every dependent value registers itself with active value that contains a set of dependent values
What is the disadvantage of a call by reference? During a call by reference damage or loss of data is not restricted to the subroutine, but will instantly lead to alters to th
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
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