Re: HELP!!! ---- MViews...

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Wed, 14 Jul 2004 18:27:25 +0100
Message-ID: <018b01c469c7$d4642dc0$7102a8c0@Primary>

I can promise you that on commit refresh would not be nice ;)
I think the problem is probably with the SYSDATE that appears in WHERE clause. I would be very very surprised if that were legal, as the materialized would have to maintain itself every second without any change taking place on the user data.

Regards

Jonathan Lewis

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Original Message ----- From: "Freeman Robert - IL" <FREEMANR_at_tusc.com> To: <oracle-l_at_freelists.org> Sent: Wednesday, July 14, 2004 6:17 PM Subject: HELP!!! ---- MViews...

Ok... I'm trying to build an MView that will fast refresh (on commit would be nice but it's not required). Looking at the Oracle documentation, it seems this should be ok, but I keep getting this error:

ORA-12015: cannot create a fast refresh materialized view from a complex query

This is in 9.2.0.4

I have MView logs created on each table with ROWID and the non pk coumn names listed as well as including new values as seen in this example:

create materialized view log on bag_tag_flt_leg with rowid, ( dep_rte_type_cd, scan_on_ind, flt_leg_actv_ind) including new values ;

It's got a UNION ALL in it, but I beleive that this is supported (at least the doc's say so). I've also added counts for each aggregate expression. I've run this through dbms_mview.explain_mview and I get no usable results.

Tis is the statement I'm trying to get to fast refresh, anyone see anything that seems out of place?

create materialized view mv_test_rf
build immediate
refresh fast
-- on commit
as

      SELECT
             BAG_TAG_FLT_LEG.flt_leg_lcl_dep_dt AS summ_dt,
             BAG_TAG_FLT_LEG.orig_arpt_cd AS arpt_iata_cd,
             BAG_TAG_FLT_LEG.carr_iata_cd,
             'D' AS ind,
             BAG_TAG_FLT_LEG.dep_rte_type_cd AS rte_type_cd,
             COUNT(*) AS bag_tag_tot_cnt,
             SUM(BAG_TAG_FLT_LEG.scan_on_ind) AS bag_tag_scan_ind_cnt,
             COUNT(BAG_TAG_FLT_LEG.scan_on_ind) as count_one
      FROM
             BAG_TAG_FLT_LEG,
             OPS_FLT_LEG
      WHERE


             -- Join OPS_FLT_LEG and BAG_TAG_FLT_LEG tables

             OPS_FLT_LEG.flt_nbr = BAG_TAG_FLT_LEG.flt_nbr AND
             OPS_FLT_LEG.carr_iata_cd = BAG_TAG_FLT_LEG.carr_iata_cd AND
             OPS_FLT_LEG.flt_lcl_orig_dt =
                     BAG_TAG_FLT_LEG.flt_lcl_orig_dt AND
             OPS_FLT_LEG.orig_arpt_cd = BAG_TAG_FLT_LEG.orig_arpt_cd AND


             -- Select active flight legs scheduled to depart yesterday and

today


             -- and actually departing since 23:00 2 days ago

             BAG_TAG_FLT_LEG.flt_leg_lcl_dep_dt BETWEEN TRUNC(SYSDATE - 1)
                                                    AND TRUNC(SYSDATE) AND
             BAG_TAG_FLT_LEG.flt_leg_actv_ind = '1' AND
             OPS_FLT_LEG.lcl_out_dtm >= TRUNC(SYSDATE - 1) - 1/24 AND
             OPS_FLT_LEG.active_ind = 1
      GROUP BY
             BAG_TAG_FLT_LEG.flt_leg_lcl_dep_dt,
             BAG_TAG_FLT_LEG.orig_arpt_cd,
             BAG_TAG_FLT_LEG.carr_iata_cd,
             'D',
             BAG_TAG_FLT_LEG.dep_rte_type_cd
      UNION ALL
      SELECT
             TRUNC(SCHED_FLT_LEG.lcl_arr_dtm) AS summ_dt,
             BAG_TAG_FLT_LEG.dest_arpt_cd AS arpt_iata_cd,
             BAG_TAG_FLT_LEG.carr_iata_cd,
             'A' AS ind,
             BAG_TAG_FLT_LEG.arr_rte_type_cd AS rte_type_cd,
             COUNT(*) AS bag_tag_tot_cnt,
             SUM(BAG_TAG_FLT_LEG.scan_off_ind) AS bag_tag_scan_ind_cnt,
             COUNT(bag_tag_flt_leg.scan_off_ind) as count_two
      FROM
             SCHED_FLT_LEG,
             BAG_TAG_FLT_LEG,
             OPS_FLT_LEG
      WHERE


             -- Join SCHED_FLT_LEG and BAG_TAG_FLT_LEG tables

             SCHED_FLT_LEG.flt_nbr = BAG_TAG_FLT_LEG.flt_nbr AND
             SCHED_FLT_LEG.carr_iata_cd = BAG_TAG_FLT_LEG.carr_iata_cd AND
             SCHED_FLT_LEG.flt_lcl_orig_dt = BAG_TAG_FLT_LEG.flt_lcl_orig_dt
AND
             SCHED_FLT_LEG.orig_arpt_cd = BAG_TAG_FLT_LEG.orig_arpt_cd AND
             SCHED_FLT_LEG.dest_arpt_cd = BAG_TAG_FLT_LEG.dest_arpt_cd AND


             -- Join OPS_FLT_LEG and SCHED_FLT_LEG tables

             OPS_FLT_LEG.flt_nbr = SCHED_FLT_LEG.flt_nbr AND
             OPS_FLT_LEG.carr_iata_cd = SCHED_FLT_LEG.carr_iata_cd AND
             OPS_FLT_LEG.flt_lcl_orig_dt = SCHED_FLT_LEG.flt_lcl_orig_dt AND
             OPS_FLT_LEG.dest_arpt_cd = SCHED_FLT_LEG.dest_arpt_cd AND


             -- Select active flight legs scheduled to arrive yesterday and

today


             -- and actually arriving since 21:00 2 days ago

             SCHED_FLT_LEG.lcl_arr_dtm BETWEEN TRUNC(SYSDATE - 1)
                                           AND TRUNC(SYSDATE + 1) AND
             BAG_TAG_FLT_LEG.flt_leg_actv_ind = '1' AND
             OPS_FLT_LEG.lcl_in_dtm >= TRUNC(SYSDATE - 1) - 3/24 AND
             OPS_FLT_LEG.active_ind = 1
      GROUP BY
             TRUNC(SCHED_FLT_LEG.lcl_arr_dtm),
             BAG_TAG_FLT_LEG.dest_arpt_cd,
             BAG_TAG_FLT_LEG.carr_iata_cd,
             'A',
             BAG_TAG_FLT_LEG.arr_rte_type_cd

Robert

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Received on Wed Jul 14 2004 - 12:25:05 CDT