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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
Let us now make the E-R diagram for the student database as per the explanation given in the previous section. We can also states the overall logical structure of a database usi
What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
The Form input elements are: Reporter name text type input Password
Question: This form represents one of a number used for each sailing of a range of boats. A passenger may go on many sailings and will have the same passenger number for each.
Question: i) Explain the terms data warehousing and data mining. ii) Discuss the importance of the following security principles that a digital firm should amongst others, n
Evaluate: a.When transactions T1 and T2 are in a deadlock, one of the transactions will eventually implement to completion and let the other one continue implementation. b.
Process to find the non-concurrent objects Once we find out non-concurrent (mutually exclusive) objects, we can fold all objects together in one thread of process or control. O
Use again the GE Flight Quest Data and build on the work done for homework 1 and 2. The goal is to create a classification model which classifies flights into "on-time" (you can de
what is attribute is attribute inheritance in dbms?
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
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