:
, MOLAP (Multidimensional OLAP), -, (, ). , MOLAP, Oracle Express (Oracle), Power Play (Cognos Corp), DataDirect (INTERSOLV);
, ROLAP (Relational OLAP), , - ( ). ROLAP- , . , ROLAP, MetaCube (Informix), Business-Objects (BusniessObjects) .;
, HOLAP (Hybrid OLAP), , . , HOLAP, SAS System (SAS Institute).
. 12.8. ()
MOLAP ROLAP . 12.4.
124. MOLAP ROLAP
MOLAP | ROLAP | |
10-50 | ||
OLAP- | SQL- | |
( ) | ||
( ) | ||
MOLAP ROLAP , ROLAP- MOLAP-, .
()
: , , , , , , .
- , MOLAP- ROLAP-.
|
|
. .
, , .
( )
MOLAP-. ROLAP- -. :
(Data Acquisition);
(Data Cleaning);
(Data Consolidation).
, .
(), , () , , .
.
( )
(Data Mart) - , , , 10 - 15 , , , ..
, , . , . .