wht is mean by dirty read?
Answer / g.arun
Dirty read - Changes made during a Transaction is 'visible'
to other parties
Non Repeatable Read -
if Transcation T1 reads a row and Transcation T2 changes
the same row,when T1 rereads and sees the changes made by
T2.Then this is Non - Repeatable Read
Phantom Read - If Transcation T1 retrieves a bunch of
rows.Transcation T2 inserts a row,T1 rereads the query and
if T1 see the additional row,it is a ghost row to T1 then
this is called as Phantom Read
Is This Answer Correct ? | 10 Yes | 5 No |
What services that container provides?
Explain some best practices you would apply while using collection in java?
What does serializing data mean?
What is a map in java?
What is an example of a constant variable?
What is a line separator in java?
Where will it be used?
What error occurs if a try-catch-finally statement sequence does not have a catch clause?
if num=687; U have to get num=6+8+7;
What is the default value of float and double datatype in java?
Why is serialization required?
Can you override a final method?