oracle 查询语句会不会死锁答:ws.machine "Waiting Machine", bs.osuser "Blocking OS User",ws.osuser "Waiting OS User", bs.serial# "Serial#",ws.serial# "WSerial#",DECODE (wk.TYPE,'MR', 'Media Recovery','RT', 'Redo Thread','UN', 'USER Name','TX', 'Transaction','TM', 'DML','UL', 'PL/SQL ...