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To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
What Is Recovery? During the life of a transaction, i.e., a after the start of a transaction but before the transaction commits, various changes may be made in a database state
Views A view is like a window by which data from tables can be changed or viewed. The table on which a view is based is known as Base table. The view is stored as a SELECT stat
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
What is NULL? Give an example to described testing for NULL in SQL? The NULL SQL keyword is used to represent either a missing value or a value which is not applicable in a re
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
Which two tools are used to administer users for Active Directory?
Describe integrity and security? a) Domain constraint b) Referential integrity A value that appears in one relation for a given set of attributes also appear fo
how to solve the C type problems?
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
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