Oracle's lock table and unlock

Step 1: Use the following SQL to view the list of processes to determine which table is locked
SELECT DOB. object_name Table_name,lo. session_id| | ', ' | | Vss. serial# Delete number,
Lo.locked_mode,lo. session_id, VSS. Serial#,vss.action action,vss.osuser Osuser, VSS. Logon_time,
Vss.process Ap_pid, VPS. SPID Db_pid, vss.*
From V$locked_object Lo, dba_objects dob, v$session VSS, v$process VPS
Where Lo. object_id = dob. object_id
And lo. session_id = VSS. Sid
and vss.paddr = Vps.addr
ORDER BY 2,3,dob.object_name
Step 2 Delete The process, such as the previous "delete number" to find the result of "286, 2184", then run the following SQL
ALTER system kill session ' 286, 2184 '

Oracle's lock table and unlock