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What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
Explain CNT in the respects of QBE ? CNT: It is one of the aggregation commands given in QBE. It is used to identify number of tuples
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
i am not clear with the climetic condition of the north indian plain. can u plz explain it for me
Explain Stand Alone Query Language in details? Stand alone Query Language - The query language that can be used interactively is known as stand alone query language. It does no
brief history,definition,current trends and future trends if any of data fragmentation
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
The Concurrent Transactions Almost every commercial DBMS support multi-user environment. Therefore, allowing multiple transactions to proceed concurrently. The DBMS must make
Describe the shadow paging technique.
What is OMR? OMR (Optical Mark Recognition) is the translation of marks - or the absence of marks - but not the shape of the mark on forms that have small circles ("also called
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