On 1/8/2014 10:14 AM, Nelson Green wrote:


    On Wed, Jan 8, 2014 at 4:54 PM, Nelson Green
    <nelsongree...@gmail.com <mailto:nelsongree...@gmail.com>> wrote:
    > I have a projects log table with a three column PK, project_num,
    person_num,
    > and sequence, where each new entry for a project/person combination
    > increments the sequence, which is not an auto incrementing
    sequence. Is
    > there any way to retrieve the last entry to the table? For
    instance, if the
    > last entry for person 427 on project 15 was sequence number 125,
    is that
    > information available to me anywhere?

    SELECT MAX(sequence) FROM project_log_table WHERE person_num=427 AND
    project_num=15


Hi Francisco,

My apologies, I was not completely clear. I will not know any of the columns in advance. The most recent insert is the result of user input from a web form, so I won't know what project or what user generated the last insert. That was why I wandered if that information was stored anywhere in the system.

wait, so you just want the latest record inserted with -any- project/person ? add a timestamptz field to your table with default current_timestamp;




--
john r pierce                                      37N 122W
somewhere on the middle of the left coast

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