[ http://nagoya.apache.org/jira/browse/DERBY-60?page=comments#action_55331 
]
     
John Sisson commented on DERBY-60:
----------------------------------

Sorry, I should have been clearer.  What I am saying is that the Derby 
documentation does not document what each of the system schemas are and that if 
the documentation refers to a schema name such as SYSIBM, then it should be 
documented elsewhere in the manual.

There are some comments in SchemaDescriptor.java that lists the system schemas. 
 Some of them, such as SYSCAT, SYSFUN, SYSPROC, SYSSTAT and NULLID appear to be 
the names used in DB2 databases and have an IBM prefix in their variable names 
in the code.

Out of interest, I did a quick search for FUN_ to see where SYSFUN was used and 
I could only see SYSFUN schema being added in DataDictionaryImpl.java

At some stage someone familiar with the code should review what these system 
schemas are used for (are some of them not used?) and document them in the 
Derby manuals.



> Documentation refers to SYSIBM system schema
> --------------------------------------------
>
>          Key: DERBY-60
>          URL: http://nagoya.apache.org/jira/browse/DERBY-60
>      Project: Derby
>         Type: Bug
>   Components: Documentation
>     Reporter: John Sisson
>     Priority: Trivial

>
> http://incubator.apache.org/derby/manuals/tools/tools109.html refers to the 
> SYSIBM system schema as an example, but SYSIBM is not mentioned anywhere else 
> in the Derby documentation (when I searched for it).

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