Perfomance Tuning to fetch data from mseg

I am writing an RFC to fetch data of reason for rejection code from mseg table, my query is like this:
Select lfbnr grund sgtxt bwart matnr into corresponding fields of itreason From mseg
where mseg~mblnr IN zz_mblnr
AND    mseg~mjahr IN zz_mjahr
AND    mseg~zeile IN zz_zeile
AND    mseg~insmk EQ 'X'
AND    mseg~lfbnr EQ itab-mblnr
AND    mseg~grund NE space.
Please note that zz_mblnr, zz_mjahr and zz_zeile are defined as RANGES in the RFC and passed in the query as empty primary keys.
The query works perfect in QAS system where as in PRD system it takes considerable amount of time to fetch data.
I would like to increase the performance of this query.
I have two solutions in my mind to do it but prefer if any one share thoughts on it too.
One solution is to create secondary indecies on lfbnr and grund fields in mseg.
The other solution is to get the reference document number from qamb table and then fetch the grund and sgtxt from mseg.
I look forward to getting reply from you.
Thanks in anticipation.
Regards,

Hi All,
VPT - Volume Performance Testing team.
Yes, I was also of the same opinion expressed by you. However, here is the reasoning given by them. Take an example like this:
Field1     Field2     Field3     Field4     Field5
Key Field     KeyField     KeyField
1001     9999     5555     ABCD
1001     9999     5556     ABCD
1001     9999     5557     ABCD     X
1001     9999     5558     ABCD
1001     9999     5559     ABCD
1001     9999     5560     ABCD
1001     9999     5561     ABCD     X
1001     9999     5562     ABCD
1001     9999     5563     ABCD
1001     9999     5564     ABCD     X
1001     9999     5565     ABCD
1001     9999     5566     ABCD
1001     9999     5567     ABCD
If you have a query which says FIELD1 =1001 and FIELD2 = 9999 and FIELD5 NE 'X', you are spending more time reading more records with blank Field5 value. Instead if you ignore that in your query, your data retrieval is much faster.
Agreed, it should taken on a case by case. In this case the field in question is a Non-Key field.
Regards,
Raj

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===========================
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1) Creating location on the OWB Client
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Hence my problem solved.
Thanks a lot.
Regards,
Manmohan

How to fetch data from Mysql with SSL.

I am using jdk1.5 and mysql 5.0.
How to fetch data from Mysql with SSL
I am using url = jdbc:mysql://localhost/database?useSSL=true&requireSSL=true.
It shows error. how to fetch

I have created certificate in mysql and checked in mysql.
mysql>\s
SSL: Cipher in use is DHE-RSA-AES256-SHA
but through ssl how to fetch data in java.

Issue with fetching data from AFRU

Hi All,
We are trying to immitate the standard transaction COOIS but with some extra features to get a report.
We have a particular select in the custom code which is timing out and taking an unusually long time(infact never finished the select) if run in background.
Custom Code
    SELECT RUECK
           RMZHL
           LMNGA
           IEDD
           MANUR
           AUFNR
           APLFL FROM AFRU
                 INTO TABLE GT_AFRU
                 FOR ALL ENTRIES IN GT_AFVC
                 WHERE RUECK = GT_AFVC-RUECK
                  AND RMZHL = GT_AFVC-RMZHL
                   AND MANUR = '1'
                   AND APLFL NE ' '.
Standard Code
SELECT * FROM afru INTO TABLE afru_tmp
                     FOR ALL ENTRIES IN rueck_tmp
                     WHERE rueck     = rueck_tmp-rueck
                     AND ( canum     = canum_0
                     OR    canum     IS NULL ).
The standard code returns the entries in blink of the eye whereas the custom code runs on for ever. Both the for all entries tables have the same entries and use the same primary key.
I also tried to fetch data from the table directly using SE16 and I input only 10 confirmations(RUECK-primary key) into the table and I try to execute this in background and it also seems to run for ever. Does anyone have any idea what is going wrong here? Pointers will be appreciated.
Regards,
Karthik

YOu should make a check if the table GT_AFVC has any entries in it or not.
if not GT_AFVC[] is initial.
SELECT RUECK
RMZHL
LMNGA
IEDD
MANUR
AUFNR
APLFL FROM AFRU
INTO TABLE GT_AFRU
FOR ALL ENTRIES IN GT_AFVC
WHERE RUECK = GT_AFVC-RUECK
AND RMZHL = GT_AFVC-RMZHL
AND MANUR = '1'
endif.

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