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e r diagram, Database Management System
how to make an e r diagram?
Posted Date: 12/6/2012 7:36:15 PM | Location : USA
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What is an index, What is an index? An index is a structure that helps ...
What is an index? An index is a structure that helps to place desired records of a relation quickly, without probing all records.
Design a gennalization and specialization hierarchy for an a, Design a genn...
Design a gennalization and specialization hierarchy for an automobile sales company
State about the use case diagram, State about the Use Case Diagram A u...
State about the Use Case Diagram A use case diagram represents a set of use cases, actors and their relationships. These diagrams shall be used to model context or requirement
Ddl compiler-database management system, DDL Compiler The DDL compile...
DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
Define ssn of salesman by using database of business trips, Consider the su...
Consider the subsequent relations for a database which keeps track of business trips of salespersons in a sales office: SALESPERSON (SSN, Name, start_year, Dept_no) TRIP (SSN, Fr
Define a view and a trigger, Define a view and a trigger. Construct a view ...
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
What are the several kinds of the update operations relation, What are the ...
What are the several kinds of the update operations on relations? Also explain the constraints on these update operation. Give instance in support of your answer. There are th
What way a particular application views data from database, What is the way...
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
Give the forms of triggers, Give the forms of triggers? The triggering ...
Give the forms of triggers? The triggering event can be insert or delete. For updated the trigger can state columns. The referencing old row as clause The referencing
The transactions, The Transactions- A transaction is definite as the unit o...
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
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