Hi,
I have a table with two columns of the type
a date, b float:
2003-02-01, 47.2
2003-02-07, 26
2003-02-09, 55
Now I want to calculate a delta(b) / delta(a) from row to row. How can I
solve this in pgsql?
ciao
Detlef
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# Dipl. Ing. (FH) Detlef Jockheck
# E-mail: detlef@jockheck.de
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