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Write short notes on relational model
The relational model uses a collection of tables to show both data and the relationships between those data. The relational model is an example of a record based model.
er diagtram for icici
Domain Constraint It shows that each attribute in a relation has to contain an atomic value only from the corresponding domains. The data types associated with commercial RDBMS
Use the IRIS dataset that comes with Weka to compare the classification performance of the following algorithms. 1. NaiveBayesSimple 2. MultiLayerPerceptron J48 (
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Where does view definition stored? A view definition is permanently stored as part of the database.
For this application, we will consider IBM DB2 catalog data (i.e., metadata) for IBM's enterprise-class servers running the z/OS (formerly OS/390 or MVS) operating system. One of
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
Write A short note on temporary tables? Temporary Tables - Temporary tables exists solely for a particular session, or whose data persists for the duration of the transaction
under what condition log based recovery is feasible?
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
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