Legolas Woodland wrote:

Hi
Thank you for reply.
i get one field for each of a DATETIME element in my table.
it means that i have : year , month, day , hour, minute, second .
i do this to be able to use each element in my queries. i find that in Oracle it is possible to extract each of those elements in sql commands and use them. now my question is how i can do the same (using a datetime and then access to each of the element) in derby ?


Hi -
Derby uses the TIMESTAMP datatype to store date and time values. There are built-in functions that can be used on a timestamp value to return the portions you list. The complete list of functions can be found at:

http://db.apache.org/derby/docs/10.1/ref/rrefsqlj29026.html

The functions you need are the names of elements you list: YEAR, MONTH, DAY, HOUR, MINUTE, SECOND








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