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What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
how does Btree differ from a B+ - tree?
What are aggregate functions? And list the aggregate functions supported by SQL? Aggregate functions are functions that take a collection of values as input and return a one va
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
what problems are raised by the database? why is it so controversial? why is data quality an issue?
I just purchased a document for you guys and wanted to confirm that it will be send within an hour or 2 to my email or where will document be sent to?
Explain the paths in the association network We can analyze use of paths in the association network as given below: Calculate each operation Find associations whic
The dataset " CFOLYMPICS.XLS " contains the observations used in the above article. The definitions of the variables are also included in this spreadsheet. However, for the purpo
What is Interaction Diagram An interaction diagram shows an interaction, comprises of a set of objects and their relationships including the messages that may be dispatched be
Three way to handle missing field val
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