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环境介绍：
用户test01 创建表tab01，用户test02创建表tab02。Test01 更新tab01不提交，test02 更新表tab02不提交。然后test01 更新test02下的表tab02，此时有锁阻塞、锁等待情况发生。接着test02 更新test01下的tab01，那么此时就会有 test01、test02 都在等待对方的资源，但是资源无法释放，满足死锁条件死锁产生！
实施步骤
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SQL> create user test01 identified by test01;
User created.
SQL> create user test02 identified by test02;
User created.
SQL> grant create session to test01, test02
Grant succeeded.
SQL> grant resource to test01,test02;
Grant succeeded.
SQL> grant all on test02.tab02 to test01;
Grant succeeded.
SQL> grant all on test01.tab01 to test02;
Grant succeeded. |
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SQL> conn test01/test01 Connected. SQL> create table tab01 (id number);
Table created.
SQL> insert into tab01 values(01);
1 row created.
SQL> commit;
Commit complete.
SQL> select * from tab01;
ID ---------- 1 |
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SQL> conn test02/test02 Connected. SQL> create table tab02 (id number);
Table created.
SQL> insert into tab02 values(02);
1 row created.
SQL> select * from tab02;
ID ---------- 2 |
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会话1 SQL> update tab01 set id=id*1;
1 row updated.
会话2 SQL> conn test02/test02 Connected. SQL> update tab02 set id=id*1 ;
1 row updated.
会话2 SQL> update test01.tab01 set id=id*1;
此时该事务被hang住
会话1 SQL> update test02.tab02 set id=id*1; update test02.tab02 set id=id*1 * ERROR at line 1: ORA-00060: deadlock detected while waiting for resource |
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原文地址：http://www.cnblogs.com/iyoume2008/p/4690643.html
