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Tag Archives: create index
DML_LOCKS设置为0导致SHUTDOWN IMMEDIATE失败
DML_LOCKS参数设置系统中允许DML锁的数量,如果将这个参数设置为0,会禁止ENQUEUE的产生,有可能轻微的提升系统的性能。 不过如果将这个参数设置为0,带来的后果会严重很多: SQL> SHOW parameter dml_locks NAME TYPE VALUE ———————————— ———– —————————— dml_locks INTEGER 264 SQL> ALTER system SET dml_locks = 0 scope = spfile; System altered. SQL> shutdown immediate DATABASE closed. DATABASE dismounted. ORACLE instance shut down. SQL> startup … Continue reading
Posted in ORACLE
Tagged create index, dml_locks, DROP TABLE, enqueue, ora-62, shutdown abort, shutdown immediate, truncate table
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