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What is a dataset? A dataset is an in-memory database that is disconnected from any regular database, but has all the significant characteristics of a regular database. Dataset
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
The Maximum no of key fields that can be used in a header is?? 50
What is Natural Language Interfaces? Natural Language Interfaces - These interfaces accept requests written within English or a few other language and attempt to "understand" t
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
why older data models are being replaced by new data models.
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
What are object interaction diagrams? Object interaction diagrams are the diagrams that used to describe order in which messages are communicated in execution of an operation,
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
Define Physical and Logical independence Ans: Physical data independence: The ability to modify physical level without causing application program to be rewritten. Logic
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