One trick I’ve used for quite a while is to have stored procs “log” information to a table with the structure…

XX.SYS_PROC_AUD
(
PROC_X,
ACTIVITY_X,
CREATED_TS,
ERROR_NB
)

…which is great for seeing what’s going on across the board, on a proc by proc basis, or looking for specific things. But what about when management request “metrics” about how things are running? Well, since I already log stop and start of the procs to the aforementioned table, you can use a WITH query to help get run times of procs and even between procs without resorting to Excel like so…

WITH    rows AS
        (
        SELECT  ROW_NUMBER() OVER (ORDER BY CREATED_TS) AS rn, CREATED_TS, PROC_X
        FROM    XX.SYS_PROC_AUD  
        WHERE   (
                PROC_X = 'XX.FIRST_PROC_P'  
			    AND ACTIVITY_X = 'Starting Exec'  
                )
                OR
                (
                PROC_X = 'XX.LAST_PROC_P'  
			    AND ACTIVITY_X = 'Finished Exec'  
                )
        ORDER BY CREATED_TS DESC
        FETCH FIRST 1000 ROWS ONLY WITH UR
        )
SELECT  mc.CREATED_TS as START_TS, 
        mp.CREATED_TS as END_TS, 
        TIMESTAMPDIFF(2, CHAR(mp.CREATED_TS - mc.CREATED_TS)) AS SEC, 
        TIMESTAMPDIFF(2, CHAR(mc.CREATED_TS - mpe.CREATED_TS)) AS SEC_BETWEEN_LAST
FROM    rows mc
            INNER JOIN rows mp
                ON mc.rn = mp.rn - 1
            INNER JOIN rows mpe
                ON mc.rn = mpe.rn + 1
WHERE   mc.PROC_X = 'XX.FIRST_PROC_P'
ORDER BY mc.CREATED_TS DESC
FETCH FIRST 100 ROWS ONLY WITH UR FOR READ ONLY

Note: I prefer to see the most recent things first so you may need to adjust your ordering appropriately if you don’t like that setup.

Thanks to this post for getting me started.

To find out when stats were updated for an index, run the following SQL substituting your schema and table names…

SELECT  IND.TABSCHEMA,
        IND.TABNAME,
        IND.INDNAME,
        IND.COLNAMES,
        IND.STATS_TIME AS IDX_STATS_TIME, 
        T.STATS_TIME TBL_STATS_TIME, 
        CASE T.VOLATILE
            WHEN 'C' THEN 'YES'
            ELSE T.VOLATILE
        END AS TBL_VOLATILE,
        T.OWNERTYPE AS TBL_OWNERTYPE,
        T.TYPE AS TBL_TYPE
FROM    SYSCAT.INDEXES IND 
            LEFT OUTER JOIN SYSCAT.TABLES T
                ON IND.TABSCHEMA = T.TABSCHEMA
                    AND IND.TABNAME = T.TABNAME
WHERE   T.OWNERTYPE != 'S'
        AND IND.TABNAME = 'MY_TABLE' 
        AND IND.TABSCHEMA = 'XX' 
ORDER BY 
        IND.TABSCHEMA,
        IND.TABNAME,
        IND.INDNAME 
FOR READ ONLY WITH UR;