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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 bubbles") completed by the respondent. This software interprets the output from the scanner and translates it into the desired ASCII output. OMR does not recognize hand-printed or machine-printed characters and does not make an image. This is frequently used for check marks on questionnaires, ballots, tests and reports.
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
WHAT IS DSS? WRITE ITS REQUIREMENTS.
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
i need to submit in this topic.
Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which
What are composite attributes? Composite attributes can be separated in to sub parts.
Benefits and limitations
When is a transaction rolled back? Any changes that the aborted transaction made to the database must be uncompleted. While the changes caused by an aborted transaction have be
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