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Multiple column Queries: Syntax: SELECT COLUMN1, COL2,...... FROM TABLE WHERE (COLUMN1, COL2, ...) IN (SELECT COLUMN1, COL2,.... FROM TABLE WHERE );
What is schema
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
need to get answer for questions 3&4 on this page in part 1
Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
Question 1 Explain ER model Question 2 What are the characteristics of a computer provided information? Question 3 What are facts and guidelines to be considered when se
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
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
what is the need of a log in dbms
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