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What is View?
A simple view can be thought of as a subset of a table. It can be used for retrieving data, as well as updating or deleting rows. Rows updated or deleted in the view are updated or deleted in the table the view was formed with. It should also be noted that as data in the original table changes, so does data in the view, as views are the way to look at part of the original table. The results of using a view are not permanently stored in the database. The data accessed by a view is actually constructed using standard T-SQL select command and can come from one to many dissimilar base tables or even other views.
'LRU' page replacement policy is ? Ans. Least Recently Used.
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Add 20 and (-15) using 2's complement ? Ans. Addition of 20 and (-15) by using 2's complement as (20) 10 = 1 0 1 0 0 (16
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explain djnz instruction of intel 8051 microcontroler
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Define cache line. Cache block is used to refer to a set of contiguous address location of some size. Cache block is also referred to as cache line.
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