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Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
Question: This question refers to the database schema. a) Express the following queries in SQL: (i) Write the SQL code that will create the table Company. Your answer sh
Illustrate how you can use QBE to perform logical AND and OR operation
Explain the cartesian product in Database Management System
Draw an entity relationship diagram (ERD) for the following situation: A company has a number of employees. Each employee is identified by an Employee_Id. The company wants to st
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
cardnality ratio for humanresource mangement system
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.
What is Index? An index is a physical structure having pointers to the data. Indices are created in an existing table to locate rows more quickly and efficiently. It is possibl
Define the Immediate Update The immediate update methods may apply changes to the database on disk before the transaction arrives a successful conclusion. Though, these change
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