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compare the features of oracle RDBMS with MySQL and Microsoft SQL server
A Relation Schema represented by R(A1, A2, ..., An) is made up of the relation name the list of attributes and R Ai that it contains. A relation is described as a set of tuples
Removing a Synonym: DROP SYNONYM D30;
why shadow copy technique is used?
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
What are stored and derived attributes? Stored attributes: The attributes keeps in a data base are known as stored attributes. Derived attributes: The attributes that are de
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
i need help for assignment ..
(A) For the relation; CarSales (RegNo, BuyerName, Address, SalesPerson, Make, Model, Commission) The following functional dependences hold, RegNo _ID à Make, Model Reg
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
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