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Join related table and count rows or sum sql server 2005 count rows: SELECT * FROM Table1 LEFT JOIN     (SELECT Level1ID, COUNT(Level2ID) AS Total FROM Table2 GROUP BY Level1ID) AS... Remove file not in list ADD ... THEN ... UNTIL ... data: begin of SERIES, N1 type I value 10, N2 type I value 20, N3 type I value 30, N4 type I value 40, ...
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Get lastest record of workitem
SQL Server
-- get lastest record of every instance

SELECT * FROM [HISTORY] H
WHERE [CREATEDTIME]  = 
    (
        SELECT MAX([CREATEDTIME]) FROM [HISTORY] M 
        WHERE M.[PROCESSINSTANCEID] = H.[PROCESSINSTANCEID] AND M.[EVENTTYPE] = H.[EVENTTYPE]
    )
ORDER BY [PROCESSINSTANCEID]