Matakuliah : M0584 - Data Warehouse
Tahun
: Sep - 2009
The Data Warehouse and Technology
Pertemuan - 6
Some Technological
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Manage large amounts of data
Manage data on a diverse media
Easily index and monitor data
Interface with a wide number of
technologies
Some Technological
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• Allow the programmer to place the
data directly on the physical device.
• Store and access data in parallel
• Have data control of the warehouse
Some Technological
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Efficiently load the warehouse
Efficiently use indexes
Store data in a compact way
Support compound keys
Some Technological
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• Selectively turn off the lock
manager
• Do index-only processing
• Quickly restore from bulk storage
Multidimensional OLAP Technology
• Is suited fro data mart processing and
not for data warehouse processing.
• When the data mart approach is used
as a basis for data warehouse, many
problem become evident :
– The number of extract programs grows large
Multidimensional OLAP Technology (continue...)
– Each new multidimensional database must
return to the legacy operational environment
for its own data
– There is no basis for reconciliation of
differences in analysis
– A tremendous amount of redundant data
among different multidimensional DBMS
environments exist