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What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
What is an E-R model? Draw an E-R Diagram for the company database with following Descriptions? The company is organized within departments. Each department has a unique name a
Enumerate or state the steps in creating a relevant database of a shop.
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
what is bogus empowerment. And what is genuine empowerment
What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of
What are the advantages of relational data model? Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer
Update Anomaly : This anomaly is occurred due to data redundancy. Redundant information makes updates more complex since, for example, varying the name of the instructor of MCS-014
how to make an e r diagram?
Using Column aliases Example: To print column names as NAME and ANNUAL SALARY SELECT ENAME "NAME", SAL*12 "ANNUAL SALARY" FROM EMP;
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