select username,lockwait,status,machine,program from v$session where sid in (select session_id from v$locked_object)
select sql_text from v$sql where hash_value in (select sql_hash_value from v$session where sid in (select session_id from v$locked_object))
n1@TEST11G> create table lock_test1 as select *from cat; Table created. n1@TEST11G> create table lock_test2 as select *from cat; Table created.
n1@TEST11G> delete from lock_test1; 20 rows deleted.
n1@TEST11G> delete from lock_test2; 21 rows deleted.
n1@TEST11G> delete from lock_test2;
n1@TEST11G> delete from lock_test1;
n1@TEST11G> delete from lock_test2;
delete from lock_test2
*
ERROR at line 1:
ORA-00060: deadlock detected while waiting for resource
create table test as select *from user_tables; n1@TEST11G> delete from test where table_name='LOCK_TEST1'; 1 row deleted.
n1@TEST11G> DELETE FROM TEST WHERE TABLE_NAME='LOCK_TEST2'; 1 row deleted. session1: n1@TEST11G> DELETE FROM TEST WHERE TABLE_NAME='LOCK_TEST2';
n1@TEST11G> DELETE FROM TEST WHERE TABLE_NAME='LOCK_TEST1';
DELETE FROM TEST WHERE TABLE_NAME='LOCK_TEST2' * ERROR at line 1: ORA-00060: deadlock detected while waiting for resource
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