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Define the Boyce-Codd Normal Form with instance and also Compare BCNF and 3NF. Ans: BCNF: For each functional dependency X->Y in a set F of functional dependencies over relati
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
courier company er-diagram
Represent the following scenarios with E-R diagrams drawn using the ER Assistant software. The diagrams should indicate cardinality and optionality of relationships. Transform each
What is the use of sub queries? A sub query is a select-from-where expression that is nested with in another query. A common use of sub queries is to do tests for set membershi
The definition of the classes and operation can often be adjusted to increase the amount of inheritance". Justify the above statement. Adjustment of Inheritance The def
State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to
Creating views with Read only option : In the view definition this option is used to make sure that no DML operations can be done on the view.
i would like to ask if you will do assignment of database number of words 1500 and how much
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
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