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Illustrate the class diagram for class room scheduling system
If in any college, the number of classrooms are limited which have to be allocated to various classes and instructors are fixed for every class, then the class diagram for allocation of classrooms and instructors is as follow:
Figure: Class diagram for a class room scheduling system
What are the time stamps associated with each data item? W-timestamp (Q) denotes the largest time stamp if any transaction that implemented WRITE (Q) successfully. R-timesta
Write the motivations led to development of OO-DBMS? 1. Programmer frustration with RDBMSs. 2. Requirement for special features.
what problems are raised by the database? why is it so controversial? why is data quality an issue?
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
Make SQL statements for the following scenarios. Your response should contain SQL statement, output and any other assumptions you have made to arrive at the answer. For Colorado cu
Question 1 Indexes are ocasionally defines on a single field of a file called an indexing field. List and describe the different types of indexes Question 2 Consider a book i
word limit no mentioned
Question 1 Explain the 10 reasons to use MySQL Question 2 Write the SQL statements to demonstrate the following using SELECT command Expression Evaluation ORDER BY
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
Which is a valid SQL type? A valid SQL Should be in CHARACTER it is should be NUMERIC and FLOAT.
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