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D:\oracle\product\10.2.0\admin\adidb\scripts>dbca
2.Æô¶¯ºÍ¹Ø±ÕʵÀý
D:\oracle\product\10.2.0\admin\adidb\scripts>net start oracleserviceorcl
D:\oracle\product\10.2.0\admin\adidb\scripts>net stop oracleserviceorcl
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1> ÉèÖÃoracle_sid (set oracle_sid=orcl)
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Oracle dead lock deep research.

Update SQLS will lead dead lock exception. Because by default, it use optimistic lock but not pessimistic lock.
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Optimistic locking offers an elegant solution to the problems o ......

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SQL> insert into idtable values(10,'ab');
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SQL> insert into idtable values(10,'bc');
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¡¡¡¡37.LAST_DAY
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