How to Replace an Oracle Server X7-2L or X8-2L Power Supply
The server's redundant power supplies support concurrent maintenance, which enables you to remove and replace a power supply without shutting down the server, provided that...
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Deep Dive into OGG `SHOWSYNTAX`: The Ultimate Guide from SQL Generation to Problem Solving
`SHOWSYNTAX` is one of the most powerful interactive debugging tools in OGG. This article provides a deep dive into its working principles, contrasts it with...
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Oracle Production Environment Database Change Specification
All production changes must follow the auditable, rollbackable, traceable three principles. After script execution, logs must be automatically emailed to the DBA team.
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Demystifying OGG `HANDLECOLLISIONS`: A Deep Dive from Firefighting to Data Consistency
Learn how to correctly use Oracle GoldenGate's HANDLECOLLISIONS parameter. This article provides a detailed explanation of its mechanics, risks, use cases, and best practices to...
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ORA-00600 Error Causing Database Instance Restart
The database alert log reported ORA-00600: internal error code, arguments: [kclantilock_17], [25770556553], causing an abnormal restart of the database instance.
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The Heartbeat of Replication: A Deep Dive into Oracle GoldenGate Latency Monitoring and Performance Diagnostics
When business users complain that 'data sync is slow,' operations staff often don't know where the latency is occurring (source, network, or target?). They lack...
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JDBC Connections Using SCAN Fail With ORA-12516
Based on the scan listener logs and VIP listener logs, it is observed that the TNS-12516 errors started appearing on July 31st.The customer stated they...
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Hardening Your Data Pipeline: The Ultimate Guide to Oracle GoldenGate Security Practices
Oracle GoldenGate's default setup is fraught with security risks. This guide provides a comprehensive walkthrough of practical steps to harden your OGG environment, covering everything...
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ORA-04030: Out Of Process Memory When Trying To Allocate Bytes (kxs-heap-w,krvxlogact) When Using Oracle GoldenGate
The problem is caused due to the large number of entries at SYSTEM.LOGMNR_LOG$ table. The SYSTEM.LOGMNR_LOG$ stores the archived log files required by Oracle GoldenGate...
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