Oracle has detected that the magic number in a memory chunk header has been overwritten.
This is a heap (in memory) corruption and there is no underlying data corruption.
The error may occur in the one of the process specific heaps (the Call heap, PGA heap, or session heap) or in the shared heap (SGA).
See Note:47411.1 on metalink.
Oracle Certified Professional 8i, 9i.
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