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Question on Datatypes

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I just found out about the Beta and got the voucher last thursday, so I'm just beginning to study.... I KNOW I KNOW!!!

I wanted to know how deep our knowledge of each of the XML Schema datatypes must be.

(I don't know what I would have done if you guys don't postpone the date)
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Well, I don't think you need to know the exact IEEE defintion of a float type, but should should know the basic types and how they map to Java in JAX-RPC. In other words, know what they are and how they might be manifested in Java, but don't memorize the exact percision of real numbers or the exact format for date types, etc.
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