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when do we go for chain(n)?

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when do we go for chain(n)? Empty when do we go for chain(n)?

Post  Archana K Sun Jan 27, 2013 3:17 pm


If we are reading from an update disk file, we can specify an 'N' operation extender to indicate that no lock should be placed on the record when it is read.

Archana K

Posts : 76
Join date : 2013-01-27
Age : 32
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