Dear Readers, Trust you are doing well!!! Today I am going to write about interesting feature being introduced in Oracle version 12.2 & widely used in 19c. Multi-Instance Redo Apply(MIRA) Basically Oracle has different ways to apply redo on standby site. SIRA: Single Instance Redo Apply ==> Wherein MRP runs […]
Dear Readers, Trust you are doing well, Today I am writing this post related to recent issue which we faced on one of the critical database post switchover to standby site. When I was checking AWR comparison reports to do some sanity checks, I found write IO statistics were increased […]
Dear Readers, Trust you are doing well, Today I am writing this post related to recent issue which I faced after DB upgrade to 19c. We saw sudden increase in waits for event “Enq: HW – contention” wherein HW stands for High Watermark not Hardware 😉 Lets start with some […]
Dear Readers, Recently I was working on one of the projects wherein a requirement was to compare two DB schemas (Both structure and data) & synchronize it. Requirement was as follows: Current application version is 1.0. It is using schema S_APPS in Oracle database as a backend. New upgrade pack […]
Dear Readers, In this post, I am going to write about the issue I faced while patching GI HOME with July 2021 OJVM patch(32876380) post applying July 2021 GI RU patch(32904851). I had a requirement to apply patch 32900083 (GI RU & OJVM Combo July 2021) on GI HOME, which […]
Dear Readers, Trust you are doing well & safe!!! In this post we are going to discuss about weird issue I faced for a user account in Active Data Guard (ADG) environment. A user was receiving “ORA-28000: the account is locked” while connecting to ADG environment from SQL Developer. When […]
Dear Readers, Recently one of my clients facing weird issue, wherein some of application jobs were timing out. He raised a incident with us to check everything is fine from DB end. After checking active database sessions, I found some of update queries were having wait event “enq: TM – […]
Dear Readers, Recently while working with one of my clients, I came across a requirement of creating graphical representation of DB growth in last few months. Ofcourse this is possible using excel graphs, I thought of achieving this using python programming. So I am writing this post on creating graphical […]
Dear Readers, Hope you are doing well & enjoying my recent articles!!! Recently I faced strange issue with one of my Database instance target on OEM. It was showing down status, though connection test was successful with no errors: Target DB version: 19.8OMS version: 12.1.0.5OEM Agent version: 12.1.0.5 PFA screenshots […]
Dear Readers, Trust you are doing well. Today I am writing about an interesting issue which we faced today. The application team did complain about one of the job failure with error “ORA-01031: insufficient privileges” while running delete statement on one of the table: Ofcourse first check I did was […]
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