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Difference between Dirty, commited ,phantom,repeatable
reads?
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Answer Posted / sknkarthik
dirty read allow a row changed by one transation to be read
by another transaction before any changes have been commited.
non repeatable read is whre one transaction chage a row
another transaction alter or delete the row then the 1st
transacton reread the row with the different value in the
second time.
phantom read is whre one transcation read the row that
satisfied the where condiotion the the 2nd transcation
insert the row with the where condiotion then the 1st
transaction reread the satisfied the where condition get the
phantom row in the second time
| Is This Answer Correct ? | 8 Yes | 8 No |
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