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Tag Archives: IMPDP
ORA-7445(kwqbcsoa)和ORA-7445(lstclo)错误
客户环境出现多次ORA-7445错误以及Oracle executable binary mismatch detected的告警信息。 数据库版本为10.2.0.3 for Linux,错误信息如下: Mon Aug 6 11:13:11 2012 WARNING: Oracle executable BINARY mismatch detected. BINARY OF NEW process does NOT MATCH BINARY which started instance issue ALTER system SET "_disable_image_check" = TRUE TO disable these … Continue reading
Posted in BUG
Tagged IMPDP, kwqbcsoa, lstclo, olap, ORA-7445, Oracle executable binary mismatch detected
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11g数据泵NETWORK_LINK功能增强
11g增强了数据泵的NETWORK_LINK功能,使得远端的导入或导出也支持分区粒度。 在10g的时候,数据泵的NETWORK_LINK只支持表粒度: [orat3@hpserver2 ~]$ expdp test/test network_link=ora10204 dumpfile=tpart.dp logfile=test.log directory=dd TABLES=t_part:p1 Export: Release 10.2.0.4.0 – 64bit Production ON Monday, 4 June, 2012 0:38:31 Copyright (c) 2003, 2007, Oracle. ALL rights reserved. Connected TO: Oracle DATABASE 10g Enterprise Edition Release 10.2.0.4.0 … Continue reading
数据泵的跨版本问题
数据泵在10g刚推出的时候,跨版本的问题并不明显,而等到11.2推出之后,数据泵同样存在处理跨版本的问题。 Oracle原始的EXP/IMP导出、导入工具的扩版本特性对于从8/9版本就接触数据库的人来说,应该是基本常识了——低版本导出,目标版本导入。 而对于数据泵来说,很多人并没有意识到这一点,事实上数据泵如果从低版本导出,高版本导入是不需要额外处理的,而大多数的需求不是版本相同,就是版本升级,因此很多人没有注意到数据泵的版本问题。 不过如果数据泵从高版本导入大低版本,如果不加处理,就会出现下面的错误: [orat1@hpserver2 ~]$ expdp test/test dumpfile=d_tmp:tab1.dp TABLES=tab1 Export: Release 11.2.0.3.0 – Production ON Mon Apr 27 09:50:10 2012 Copyright (c) 1982, 2011, Oracle AND/OR its affiliates. ALL rights reserved. Connected TO: Oracle DATABASE 11g Enterprise Edition Release … Continue reading
数据泵造成的数据损失
客户尝试导入一个分区表的个别几个分区,结果却损失了整个分区表的数据。 下面通过一个例子来在线这个问题: SQL> CREATE TABLE T_PART PARTITION BY RANGE (CREATED) 2 (PARTITION P1 VALUES LESS THAN (TO_DATE(‘2012-1-1’, ‘YYYY-MM-DD’)), 3 PARTITION P2 VALUES LESS THAN (TO_DATE(‘2012-2-1’, ‘YYYY-MM-DD’)), 4 PARTITION P3 VALUES LESS THAN (TO_DATE(‘2012-3-1’, ‘YYYY-MM-DD’)), 5 PARTITION P4 VALUES LESS THAN … Continue reading