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Posted by PDSERVICE 四月 05, 2020 0 comments

Purpose

After rebooting a node, the CRS stack fails to start. This bulletin offers a list of things to check while troubleshooting the cause.

Posted by PDSERVICE 三月 14, 2020 0 comments

one oracle database has been encrypted by devos ransomware malware ,

Posted by PDSERVICE 三月 12, 2020 0 comments

在误删除或误更新数据的情况下，oracle 10g以后可以使用flashback query闪回查询来恢复数据，但如果对应的undo数据被部分覆盖了，则闪回查询会因为ORA-01555错误而失败。

针对这种场景诗檀软件提供了基于闪回的更好的恢复机制，该机制可以帮助用户基于undo和磁盘上的残留信息尽可能恢复数据。

Posted by PDSERVICE 三月 12, 2020 0 comments

if you deleted/updated data by mistake in oracle. and try to recover data from flashback query. Your query may fail with ora-01555 error: