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What are ways of finding out either an update is required or not for derived attributes? The ways to find out an update is required or, not are as: Explicit update
FitAll Ltd is a company that manufactures clothes. Its processes are manual and there are stand-alone Information Systems that aid to manage them. The Information Systems were purc
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
What do you mean by persistence? How you will make your data persistent? Persistent data is the data, which has a longer lifetime than program which has created it. Enabling th
Why older data models are being replaced by new data modelling 100 words accepted#
Explain the Management of Data Store Every system irrespective of its nature of application requires storing permanent data for consequent use in problem solving. Some objects
SELECT Statement This statement is used for retrieving information from the databases. It can be coupled with many clauses. Let us talk about these clauses in more detail:
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
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