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Which is another name for weak entity?
Child is another name of weak entity.
I need web security expert , website management Project Description: i want professional for the below . website management server management database management
What is Outer join? They can be employed while we want to keep all the tuples in R, or all those in S or all those in both relations in the result of the JOIN in spite of of w
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
How does the system cope up with a record crash when recovery is going on after the first crash? Ans: In a system the undo and redo operations are needed to be idempotent to c
does tables are called relations
DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
Describe sequential file organization. Explain the rules for (i) Inserting a new record. (ii) Deleting an existing record. Ans:A sequential f
A student entity type has the following attributes,name..
tell me the functionality,advantages and disadvantages of student database
Consider the following relational scheme: R (a,b,c,d,e,f) and its corresponding set of FDs {d→ a, be → c, ac → e, b → f, f → d, a → c}. a. Is the following decomposition i) non
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