|  
 SQL_TEXT 
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 VARCHAR2(1000) 
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 The SQL text of the shared cursor child object for which this row is displaying information 
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|  
 HASH_VALUE 
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 NUMBER 
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 The hash value of the above SQL text in the shared pool 
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|  
 HEAP_DESC 
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 RAW(4 | 8) 
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 Address of the descriptor for the context heap of the child cursor described in this row 
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|  
 STRUCTURE 
 | 
 
 VARCHAR2(16) 
 | 
 
 If the memory chunk described in this row was allocated using a comment of the form "X : Y", then this is the "X" part of the comment 
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|  
 FUNCTION 
 | 
 
 VARCHAR2(16) 
 | 
 
 Similar to the STRUCTURE column, this is the "Y" field of the comment 
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|  
 COMMENT 
 | 
 
 VARCHAR2(16) 
 | 
 
 The whole comment field that was supplied when this memory chunk was allocated 
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|  
 CHUNK_PTR 
 | 
 
 RAW(4 | 8) 
 | 
 
 Starting address of the allocated memory chunk 
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|  
 CHUNK_SIZE 
 | 
 
 NUMBER 
 | 
 
 Amount of memory allocated for this chunk 
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|  
 ALLOC_CLASS 
 | 
 
 VARCHAR2(8) 
 | 
 
 Class of memory that this chunk of memory belongs to. It will usually be either FREEABLE or PERMANENT. 
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|  
 CHUNK_TYPE 
 | 
 
 NUMBER 
 | 
 
 An index into a table of callback functions that tell the server how to recreate this chunk of memory should it need to be removed from the shared pool based on an LRU algorithm 
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|  
 SUBHEAP_DESC 
 | 
 
 RAW(4) 
 | 
 
 If the parent heap of this context heap is itself a subheap, then this is the address of the descriptor of the parent heap 
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