Explain transaction atomicity?
Atomicity (database systems) is a property of database
transactions which are guaranteed to either completely
occur, or have no effects.
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Define and explain about COM?
Can I use .net components from com programs?
Does .net replace com?
Explain object pooling?
Explain queued components.
Suppose we have object b and aggregated object c (in- proc server), created by b. Can you access any interface of b from c? What?s the difference between aggregated and contained objects?
What are the different compatibility types when we create a COM component?
where can i use pmcmd commands of informatica
What is IUnknown? What methods are provided by IUnknown?
Explain transaction atomicity?
What happens when client calls CoCreateInstance?
can a COM interface be implemented by more than one COM class in the same COM component?
2 Answers Cap Gemini, Honeywell,