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Which database object does not physically exist?
A view database object does not physically exist.
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
limitations and benefits in database tecknowlagy
What are the drawbacks of File Oriented System in details?
In which format database schema is written ? Data base schema is written in the DDL format.
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
what is query processing?
What is Secondary Index While making the index, generally the index table is kept in the primary memory (RAM) and the main table, because of its size is keeps in the secondary
How is concurrency identified? Concurrency in objects can be identified by the way they alter their state. Current objects can change their state independently. Aggregation imp
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