User A executes the following command to update the TRANS table:
SQL> UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code=’C005′;
Before user A issues a COMMIT or ROLLBACK command, user B executes the following
command on the TRANS table:
SQl> ALTER TABLE trans MODIFY (tr_type VARCHAR2(3));
What would happen in this scenario?
A.
The ALTER TABLE command fails due to the resource being busy.
B.
The transaction for user A is rolled back.
C.
The ALTER TABLE command modifies the column successfully.
D.
The ALTER TABLE command waits until user A ends the transaction.