Technology Questions

Locking is a mechanism to ensure data integrity while allowing maximum concurrent access to data. It is used to implement concurrency control when multiple users access table to manipulate its data at the same time.

Advantages :

- Avoids deadlock conditions

- Avoids clashes in capturing the resources

Fact is key performance indicator to analyze the business.From the additive values, which are used to analyse the business by using report generation. Dimension is used to analyze the fact, are the non-additive ( text format) values, Which are used to drill down reports.Without dimension there is no meaning for fact. Measure is the quantity of data we create to process.

Eucalyptus stands for “Elastic Utility Computing Architecture for Linking Your Programs to Useful Systems” and provides an open source software infrastructure to implement clusters in cloud computing platform. It is used to build private, public and hybrid clouds. It can also produce your own datacenter into a private cloud and allow you to extend the functionality to many other organizations. Eucalyptus provides APIs to be used with the web services to cope up with the demand of resources used in the private clouds.

There is no difference between int and int32. System. Int is an alias name for System.Int32 which is a .Net Class.

No difference. There is a difference between obtain first and obtain next for an area sweep, but not when current on the owner in a set.

- UDAI places the data in the source systems.

- A set of views are defined for providing access the unified view to the clients / customers.

- Zero latency of data can be propagated from the source system.

- The generated consolidated data need not require separate storage space.

- Data history and version management is limited and applied only to the similar type of data.

- Accessing to the user data overloads on the source systems.