Explain ACID rule of thumb for transactions.
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Answer / guest
Transaction must be Atomic (it is one unit of work and does
not dependent on previous and following transactions),
Consistent (data is either committed or roll back, no
?in-between? case where something has been updated and
something hasn?t), Isolated (no transaction sees the
intermediate results of the current transaction), Durable
(the values persist if the data had been committed even if
the system crashes right after).
Is This Answer Correct ? | 9 Yes | 0 No |
Answer / vishalakshi patil
Atomicity- Each transaction is said to be atomic if when
one part of the transaction fails, the entire transaction
fails and database state is left unchanged.
Consistency-transaction will take the database from one
consistent state to another consistent state.
Isolation-Isolation refers to the requirement that other
operations cannot access or see data that has been modified
during a transaction that has not yet completed
Durability-Durability is the DBMS's guarantee that once the
user has been notified of a transaction's success, the
transaction will not be lost.
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / dfdfdfsfsdds
A - Alter Table
C - Create Table
I - Insert a Row
D - Delete a Row
Is This Answer Correct ? | 1 Yes | 14 No |
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