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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.
Eliminate Repeating Groups The problem is, "Find out the list of employees, who knows DB2". For this problem we require to perform an awkward scan of the list looking for re
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
What is conceptual model ? A conceptual model is a independent of both hardware and software.
Ask Write the SQL code that will create the table structure for a table named EMP _1. This table is a subset of the EMPLOYEE table. The basic EMP_1 table structure is summarized in
explain the mapping constraints
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole t
Which is another name for weak entity? Child is another name of weak entity.
Determine the language that needs a user to specify the data to be retrieved with no specifying exactly how to get it is Ans: Non-Procedural DML
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
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