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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
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
Draw an ER diagram for company''s database schema
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
Describe the different RAID levels. Discuss the choices of the different RAID levels for different applications. Ans: There are several combinations of these approa
statical data
Which is another name for weak entity? Child is another name of weak entity.
Birla Institute of Technology & Science, Pilani Work-Integrated Learning Programmes Division Second Semester 2012-2013 EC-1 Assignment 2 (7.5% of the grade) Course No. : SS ZG
What do you mean by an execution plan? Why is it used? How will you view it? a.) An execution plan can be known as a road map which textually or graphically illustrates the dat
how to prepare a data dictionary for online examination system for certified courses?
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