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Write a short note on built in function in QBE?
Built in function in QBE: QBE involves various built in functions like AVG, MAX,MIN,SUM and CNT. We must prefix these operators along with ALL to create a multiset on that the aggregate operation is evaluated. The ALL operator ensures in which duplicates are not eliminated. We can use UNQ to specify which we want duplicates eliminated. QBE also offers the ability to calculate functions on groups of tuples by using the G operator, that is analogous to SQL's group by construct.
Analyzing Association Traversal Association Traversal shall be understood properly for the association design explanation. Analyzing association traversal means analyzing tra
Attributes and its types explain?
The database application project (DAP) for this assignment consists of the creation of a fully functional Microsoft Access database application for a real client. I recommend you s
The Locking Protocol: To manage concurrency related problems we use locking. A lock is mainly a variable that is associated with a data item in the database. A lock can be located
What is the max. no. Of structures that can be included in a table or structure. Nine.
What are the functions of an accumulator? The accumulator is the register associated with the ALU operations and sometimes I/O operations. It is an integral part of ALU. It hol
non numeric literals
Create a Student database and Retrieve the names of all students majoring in ‘CS' Consider the following relational database: STUDENT (name, student#, class, major) COURSE (co
Why do so various organizations use MySQL? Advantages: Open source Highly efficient Offers a high scalability in terms of size and connectivity. Highly prote
how oracle can be used
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