单选题
User A executes the following command to drop a large table in your database： SQL> DROP TABLE trans； While the drop table operation is in progress， user B executes the following command on the same table： SQL> DELETE FROM trans WHERE tr_type=’SL’； Which statement is true regarding the DELETE command（）
发布日期：2020-04-10
It fails with a Resource Busy error.
It deletes the rows successfully because the table is locked in SHARE mode.
It fails to delete the records because the table is locked in EXCLUSIVE mode.
It deletes the rows successfully because the table is locked in SHARE ROW EXCLUSIVE mode.
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