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Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
What Command You Use What Day of the week were you born
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Group By clauses • It is used to group database tuples on the basis of definite common attribute value like as employees of a department. WHERE clause still can be used
Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department. SELECT DEPTNO, MIN (SAL)
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.
I need some help with my normalization database homework.
Which sorting technique is used to sort databases, whose sizes are very big? Give one such algorithm. Why do sorting techniques like quicksort, insertion sort, etc. not applied
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
Super keys of a relation can have extra attributes. Candidate keys are minimal super key, i.e. such a key have no extraneous attribute. An attribute is known as extraneous if even
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