混杂人
发表于 2025-3-26 21:32:19
X$KFFXP and ASM Metadataocation units in ASM disks is available through X$KFFXP. An understanding of X$KFFXP enables a DBA to directly access database and server parameter files stored in ASM with operating system commands. Beyond educational purposes, an understanding of ASM file layout may prove useful for salvaging data or troubleshooting.
使隔离
发表于 2025-3-27 01:48:00
the "right" insider contacts..Authoritative – written by an .Secrets of the Oracle Database .is the definitive guide to undocumented and partially-documented features of the Oracle Database server. Covering useful but little-known features from Oracle Database 9 through Oracle Database 11, this book
Coma704
发表于 2025-3-27 08:43:39
Partially Documented Parameters documented parameters, Oracle10g Release 2 has 258, and Oracle11g Release 1 has 294. Presumably there is no single DBA who has memorized the meanings and permissible values for all those parameters. The . manual of each respective release is the definitive source for documented initialization param
Emg827
发表于 2025-3-27 11:46:29
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Odyssey
发表于 2025-3-27 15:31:18
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防止
发表于 2025-3-27 19:28:27
Event 10027 and Deadlock Diagnosisg. Part 3 expands on that material in the sense that the events it discusses may be set using the parameter EVENT or the SQL statements ALTER SESSION/SYSTEM. The difference between these approaches is that solely the parameter EVENT ensures that the configuration is both persistent and pertains to t
逢迎春日
发表于 2025-3-27 22:32:06
Event 10046 and Extended SQL Trace Event 10046 is ideal for enabling extended SQL trace. When combined with ALTER SESSION, event 10046 is the only way to enable extended SQL trace that does not require DBA or SYSDBA privileges. This event is useful for building a self-tracing capability into an application. Self-tracing means the ab
Cacophonous
发表于 2025-3-28 02:33:00
Event 10053 and the Cost Based Optimizerwith the undocumented event 10053. Oracle Support will usually request such a trace file if you intend to file a technical assistance request against the optimizer in situations where it fails to find an execution plan that yields an acceptable response time.
slow-wave-sleep
发表于 2025-3-28 09:35:43
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Fulminate
发表于 2025-3-28 13:07:22
X$KFFXP and ASM Metadataocation units in ASM disks is available through X$KFFXP. An understanding of X$KFFXP enables a DBA to directly access database and server parameter files stored in ASM with operating system commands. Beyond educational purposes, an understanding of ASM file layout may prove useful for salvaging data