Tuesday, October 6, 2009

FAQ : What is Domain of a column? How it defer from Datatype

Domain of a columm is the set of the values that are applicable for a column. For example, Gender column can have Female or Male so these value make the domain for Gender column.

Though Domain and Datatype looks similar but it is not so. Datatype is the type of data that can be stored in the column . ie. Integer datatype column can only store numeric data.

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