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Explain the steps for reduction of E-R model into relational model.
Ans:(a) Entity set in E-R model will be considered as table name in relational Model.
(b) Attributes of entity set in E-R diagram will be referred as fields or column name of table.
(c) Underline attributes of Attribute in E-R model will be considered as Primary key of the table.
Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company. SELECT EMPLOYEE_NAME,
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In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan
Q. Explain the terms key constraints participation constraints and mapping caradinalities in ER model. Participation Constraints : The participation of an entity set E i
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How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
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What are the types of storage devices? Primary storage Secondary storage Tertiary storage Volatile storage Nonvolatile storage
how to implement hyrise in C plus plus
Explain the concept of a data model ? Data Model - Model is an abstraction procedure which hides irrelevant details although highlighting details relevant to the application
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