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Oracle 10053 Trace Viewer (v10053.exe)
Oracle 10053 trace event provides information on how the Cost Based Optimizer (CBO) came to its decision (the final execution plan). This is often helpful troubleshooting "bad" SQL execution plan. Unfortunately, 10053 trace files can be enormous. This free viewer will help you navigate quickly to the most important sections of the trace file. Also it highlights section headers and formats the transformed final query for enhanced readability, see screenshot.
Start this digitally signed executable file v10053.exe, then open trace file using standard Open File dialog.
Alternatively, indicate .trc file in the command line:
v10053.exe filename
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File integrity and Digital code signing
We are using a code signing certificate from Comodo. The EXE files are signed using Microsoft Authenticode technology. In order to check file integrity and authenticity, download it first (don't open it), then in Windows Explorer right-click on the file and select Properties. Check under "Digital Signatures" to verify that the name of the signer is 128 Consulting. If you use Windows XP, SP2 or later, you will be presented with the signature automatically once the executable is started. For more details, see How Code Signing Works.