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Explain the difference between using functions along with and without grouping attributes in relational algebra. Give examples. Ans: Group functions are used to group data of
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Control as Concurrent Tasks The expression control as simultaneous task means applying control for those events of object which can happen simultaneously. An object can be imp
What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.
Consider the relation schemas as follows. works (person name, company name, salary); lives (person name, street, city); located in(company name, city); managers (person name
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
#explain five disadvantages of a dbms..
discuss the array implementation of a stack.
List the SQL domain Types? SQL supports the following domain types. 1) Char(n) 2) varchar(n) 3) int 4) numeric(p,d) 5) float(n) 6) date.
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