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external view of DBMS in healthcare department?
DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
When is UPDATE_STATISTICS command used? - When processing of large data is done, this command is used. - Whenever large number of modification, deletions or copy takes place
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
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
Why does a DBMS query language is designed? A DBMS query language is designed to support end users who use English-like commands. support in the development of complex applicat
What is NULL? Simply NULL means not in value.
The result of the UNION operation between R1 and R2 is a relation that includes? The result of the operation between R1 and R2 includes all the tuples of R1 and R2 which have c
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