What is meant by repeatable read?
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Answer / guest
The qualifying rows under Repeatable read will ensure that
no rows will be changed or added for the duration of the
lock.
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Answer / sf
In RR isolation level, all the pages fetched in the cursor
are locked till end of transaction. This is the safest way
to ensure that no concurrent update happened when the
cursor was actiong on this data.
The confusion would be on CS . In CS only the page having
the relevant data would be locked. As the page size is 4k ,
we may lock more than one row of a table based on row size
and table space organization.
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Answer / kumar
It is the highest level of isolation parameter. I will hold
the entire table till the completion of the transaction or
job. Others can not access that thable
| Is This Answer Correct ? | 1 Yes | 2 No |
i have table agdet i want first 5 maximum commission which query will you write for this thanks in advance
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