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Oracle Database Error Solutions & DBA Knowledge Base

Practical, step-by-step Oracle Database troubleshooting and administration resources for DBAs, developers, Oracle E-Business Suite administrators, and IT professionals.

Explore practical guidance covering Oracle Database errors, RMAN backup and recovery, Data Guard, ASM, RAC, performance tuning, installation, patching, cloning, Oracle Linux administration, and Oracle E-Business Suite.

Our troubleshooting guides explain common causes, diagnostic steps, SQL queries, configuration checks, and recommended solutions to help database professionals understand problems and resolve them systematically.

Start with the Oracle Error Codes Guide or explore the main DBA topic areas to find detailed technical articles and practical administration resources.

How to Rebuild or Recreate Oracle E-Business Suite Concurrent Manager – Complete Oracle Apps DBA Troubleshooting Guide

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How to Rebuild or Recreate Oracle E-Business Suite Concurrent Manager – Complete Oracle Apps DBA Troubleshooting Guide 📅 Last Updated: August 2026 This guide has been completely reviewed and updated for Oracle E-Business Suite 11i, R12.1, and R12.2. It covers Oracle Concurrent Processing architecture, Internal Concurrent Manager (ICM), Standard Manager, Service Manager (FNDSM), clone recovery, AutoConfig, FND_NODES cleanup, Concurrent Manager recreation, production troubleshooting, Oracle Apps DBA best practices, and real-world production case studies. Oracle Concurrent Manager is one of the most critical components of Oracle E-Business Suite. It is responsible for processing background jobs, scheduled requests, reports, workflow activities, XML Publisher reports, payroll programs, financial processes, and many other business-critical operations. When the Concurrent Manager becomes corrupted, fails to start, or is improperly cloned, users may be unable to submi...

Export from Oracle Application Does Not Show Save/Open Dialog – Complete Oracle E-Business Suite Troubleshooting Guide

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Export from Oracle Application Does Not Show Save/Open Dialog – Complete Oracle E-Business Suite Troubleshooting Guide 📅 Last Updated: August 2026 This article has been completely reviewed and updated for Oracle E-Business Suite 11i, R12.1, and R12.2. It includes Oracle Forms export architecture, FND_GFM processing, FND_LOBS troubleshooting, Oracle HTTP Server (OHS), Oracle WebLogic Server, browser download behavior, production troubleshooting, Oracle Apps DBA best practices, and real-world production case studies. Oracle E-Business Suite users occasionally encounter a situation where exporting data from an Oracle Forms window appears to start normally, but the expected Save/Open download dialog never appears. Typically, users click File → Export , the export progress window flashes briefly, and then disappears without generating any file for download. Although this appears to be a browser issue, the actual problem may originate anywhere within the Oracle...

FRM-92050: Failed to Connect to the Server – Complete Oracle Forms & Oracle E-Business Suite Troubleshooting Guide

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FRM-92050: Failed to Connect to the Server – Complete Oracle Forms & Oracle E-Business Suite Troubleshooting Guide 📅 Last Updated: August 2026 This article has been completely reviewed and updated for Oracle Forms 10g, 11g, and 12c, as well as Oracle E-Business Suite 11i, R12.1, and R12.2. It includes Oracle HTTP Server (OHS), Oracle WebLogic Server, Oracle Forms Services, AutoConfig validation, production troubleshooting, middleware diagnostics, Oracle Apps DBA best practices, and real-world production case studies. One of the most frustrating errors encountered by Oracle E-Business Suite users and Oracle Forms administrators is: FRM-92050: Failed to connect to the Server: Please check that the server is running. This error typically appears immediately after launching an Oracle Forms application or when opening an Oracle E-Business Suite responsibility that requires Oracle Forms. Although the message suggests that the Forms Server is unavailable, F...

Unable to Mount NTFS File System in Linux – Complete Troubleshooting Guide

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Unable to Mount NTFS File System in Linux – Complete Troubleshooting Guide 📅 Last Updated: August 2026 This article has been completely reviewed and updated for modern Linux distributions including Oracle Linux, Red Hat Enterprise Linux (RHEL), CentOS, Rocky Linux, AlmaLinux, Ubuntu, Debian, Fedora, and SUSE Linux. It now covers NTFS mounting using both the Linux ntfs3 kernel driver and ntfs-3g , along with production troubleshooting, Windows Fast Startup issues, filesystem repair, and Linux administrator best practices. One of the most common filesystem issues Linux administrators encounter is the inability to mount an NTFS partition. The problem often occurs after connecting a Windows hard disk, USB drive, SSD, or dual-boot system. Typical errors include: Unable to mount NTFS filesystem The NTFS partition is in an unsafe state. Mount is denied because the NTFS volume is already exclusively opened. Failed to mount '/dev/sdb1' Although the...