Re: Last not null value from previous rows

From: Michel Cadot <micadot{at}altern{dot}org>
Date: Tue, 26 Jan 2010 20:56:22 +0100
Message-ID: <4b5f48e6$0$23929$>

"Shakespeare" <> a écrit dans le message de news: 4b5f4717$0$22934$
|I vaguely remember this has been asked and answered before, but can not
| find the answer anymore:
| Suppose I have a table in which a column has a value for some rows, and
| none (null) for others. Is there a way to let a select statement (which
| returns values from the current row) return the last non null value for
| this column? So, in pseudo code:
| select
| col1,
| col2,
| "last-non-null value for col3"
| from a_table
| order by col1?
| Thanks in advance,
| Shakespeare

What about LAST_VALUE function?

Michel Received on Tue Jan 26 2010 - 13:56:22 CST

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