Siemens V 4.0 Manuel D’Utilisation
GINA V4.0 System Administrator Guide – September 2000
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Customizing the database layout
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2. Fragmentation of a database table
A fragmentation line contains the following fields:
fr
|
ident
|
resource
|
A number of definition lines of this type are permitted per class, at least two
resources
must be defined for the purpose of fragmenting.
Note that a partitioning of storage space which is taken into account during the frag-
mentation can also be specified in the
mentation can also be specified in the
t
definition line.
ident
Name of the class in the specialist model.
Mandatory entry
resource
Entry to identify a dbspace in which the tables are to be stored. Such a
dbspace is a storage area which is based on the physical storage media.
The dbspace must exist and can only be assigned once per table. Optimi-
zation strategies for access functions can be realized through the fragmen-
tation of tables across several storage structures.
dbspace is a storage area which is based on the physical storage media.
The dbspace must exist and can only be assigned once per table. Optimi-
zation strategies for access functions can be realized through the fragmen-
tation of tables across several storage structures.
Mandatory entry
Example
fr|
myClassname1 | Dbspace_1|
fr|
myClassname1 | Dbspace_2|
3. Name mapping of database views
A view line contains the following entries:
vw |
ident | name
Only one definition line of this type is permitted per class.
ident
Name of the class in the specialist model
Mandatory entry
name
Name of the view to which the class of the specialist model is to be mapped.
Example
vw |
myClassname | myNewViewName|