What is operational data source (ODS)?
Answers were Sorted based on User's Feedback
Answer / guest
An Operational Data Store (ODS) integrates data from
multiple business operation sources to address operational
problems that span one or more business functions. An ODS
has the following features:
• Subject-oriented — Organized around major subjects
of an organization (customer, product, etc.), not specific
applications (order entry, accounts receivable, etc.).
• Integrated — Presents an integrated image of
subject-oriented data which is pulled from fragmented
operational source systems.
• Current — Contains a snapshot of the current
content of legacy source systems. History is not kept, and
might be moved to the data warehouse for analysis.
• Volatile — Since ODS content is kept current, it
changes frequently. Identical queries run at different
times may yield different results.
• Detailed — ODS data is generally more detailed than
data warehouse data. Summary data is usually not stored in
an ODS; the exact granularity depends on the subject that
is being supported.
| Is This Answer Correct ? | 8 Yes | 0 No |
It is a collection of integrated databases designed to
support operational monitoring. Unlike the OLTP databases
the data in the ODS are integrated, subject oriented and
enterprise wide data.
| Is This Answer Correct ? | 4 Yes | 0 No |
in general which algorithms for used?
What are the advantages of raid 1, 1/0, and 5. What type of raid setup would you put your tx logs?
Explain what is the difference between datawarehouse and bi?
What is surrogate key?
What is real-time datawarehousing?
What is the difference between a primary and secondary actor in use case modeling?
What is the difference between datawarehouse and bi?
What is surrogate key? Explain with examples.
Explain the difference between view and materialized view?
Explain what are the vaious etl tools in the market?
What are session timeout and application timeout?
explain about dirty dimension?