What is the boxing and unboxing concept in .net?
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what is mean by crystal repoart? ahere we will mainly use that?
what is Constraint? How many types of constraints in SQL ?
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How to generate the Reports for the Database? I need an Example for it.Will we manually do this or else any script is there? Please let me know ASAP...
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Explain what role entity and relationship play in an ER diagram.
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