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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
What is the function of SQL Server Agent Windows service? - It's a Windows service that handles tasks scheduled within SQL Server environment. These tasks are also known as job
Explain mechanism of nested queries? SQL gives a mechanism for nesting subqueries. A subquery is a select from where expression that is nested within one more query. A common u
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
what is attribute is attribute inheritance in dbms?
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key. Ans: 3NF A relation is in 3 NF if an attribute of
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
what is physical data structure
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