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How does Oracle store the DATE datatype internally?

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How does Oracle store the DATE datatype internally?
posted Feb 11, 2015 by Suchithra

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1 Answer

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Oracle stores data in a proprietary format. It uses 7 bytes for Data storage and 1 byte is used for the length data.
The following is the mapping of the oracle's date type
Byte 1 -> Century
Byte 2 -> Year
Byte 3 -> Month
Byte 4 -> Day
Byte 5 -> Hour
Byte 6 -> Minute
Byte 7 -> Second

answer Feb 12, 2015 by Arun Gowda
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