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Background documentation File Directory Locate the document in its SAP Library structure

The file directory is a special management structure within the database system. The file directory stores the allocation of the root pages of the B* trees to the table IDs, and a type ID. The type ID provides information as to whether the table contains primary data, secondary keys, or LONG data.

See also:

Concepts of the Database System, Data Storage in B* Trees

 

 

 

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