Datawarehouse LifeCycle?

Question

Hi All,
just i want to confirm my understanding in Datawarehousing?
1-Datawarehouse system will have a group of entities , each entity is a star schema and denormalized
we use discoverer to build reports from those schemas
2-discoverer can be used also to build reports for OLTP not only Datawarhouse
3-the typical DataWarehouse system is one that is populated on a daily/weekly/... basis using
(Oracle Warehouse Builder ), if not what OWB used for?
4-Datawarehouse system used MOSTLY by discoverer for query , usually no other
interfaces (like oracle forms) use it
am i missing any other points , or am i wrong in any point?
Thanks a lot....

Answer 1

1-Datawarehouse system will have a group of entities
, each entity is a star schema and denormalized
we use discoverer to build reports from those
schemasThere are three types actually, star, snowflake, and a combination of star and snowflake (i am missing the name)
2-discoverer can be used also to build reports for
OLTP not only DatawarhouseDiscoverer is a tool to build ad-hoc queries, so it might be any type of database.
3-the typical DataWarehouse system is one that is
populated on a daily/weekly/... basis using
(Oracle Warehouse Builder ), if not what OWB used
for?Yes, but there are other popular products available in the market to do the same job.
4-Datawarehouse system used MOSTLY by discoverer for
query , usually no other
interfaces (like oracle forms) use it
With Oracle Forms/Reports, your queries are mostly rigid. Discoverer gives you an oppurtunity to create ad-hoc queries.