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Explain the difference between using functions along with and without grouping attributes in relational algebra. Give examples. Ans: Group functions are used to group data of
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
average response time?
WHAT IS DSS? WRITE ITS REQUIREMENTS.
WHERE and HAVING clause in SQL ? The WHERE clause is commonly used for implementing conditions on each tuple of the relation. The HAVING clause is used in combination along wi
Question (a) Visual Basic is governed by an event processor. Explain the meaning of this phrase. (b) Differentiate between an general procedure and event procedure. (c)
Question 1 Discuss about second normal form and third normal form Question 2 Write short note on 1) Data Manipulation Language 2) Data Definition La
What are composite objects? Objects that have other objects are known as complex objects or composite objects.
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
why older data models are being replaced by new data models.
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