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Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
notes about update opreation
State about the Activity Diagram Activity diagrams show flow from one activity to other. It is an ongoing non atomic execution within a state machine. Activity finally results
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
what is attribute is attribute inheritance in dbms?
Fourth Normal Form (4NF) When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued d
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
I have been given 8 differebt data warehouseing failure case studies. I need to question 4 questions for each
Explain the concept of deadlock Yes. It can direct to deadlock. Suppose that a batch of frames arrived correctly and were accepted. Then receiver will advance its window. Now s
Differentiate between a subquery and a join If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are t
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