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What is called query processing?
Query processing refers to the range of activities included in extracting data from a database.
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
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
What is an Index? An index is a small table having only two columns. The first column has a copy of the primary or candidate key of a table and the second column having a set o
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
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Describe Interfaces for the DBA? Interfaces for the DBA - Most database systems holds privileged commands which could be used only through the DBA's staff. These involves com
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
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
what is natural join?
Data slice explanation
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