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What are the storage types?
The storage types are:
a) Volatile storage
b) Nonvolatile storage
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
Normalize the given relation to 3NF, justifying each step
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
Describe Data Manipulation language ? Data Manipulation Language (DML) - A data manipulation language is a language which enables users to access or manipulate data as organize
Database design Database tables will be created for you on the Technology web server. The schema will be as follows. Please note that this is a simplified database structure, d
What is a guard condition? Explain it with a suitable example. The guard-condition is a Boolean expression written with respect to parameters of triggering event and attributes
What do you understand by transitive dependencies? Define with an example any two problems that can take place in the database if transitive dependencies are available in the datab
Sub query in the UPDATE command : Example : //Double the commission for employees, who have got at least 2 increments. UPDATE EMP SET COMM = COMM * 2 WHERE
differences between a classified catalog and a dictionary catalog
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
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