topic Re: Performance issue with RESB table in Application Development and Automation Discussions

Performance issue with RESB table

Former Member — Thu, 15 May 2008 11:20:24 GMT

Hi,

User want to improve the performance of a standard program RLLL07SE in which a RESB table data is fetched and take much time on it.

The select querry for RESB is,

SELECT * FROM RESB WHERE

MATNR = MATNR AND

WERKS = WERKS AND

XLOEK = SPACE AND "Löschkennzeichen

KZEAR = SPACE AND "endausgefaßt

XWAOK = CON_X AND "Warenausgang erlaubt

LGNUM = LGNUM AND

LGTYP = LGTYP AND

LGPLA = LGPLA.

whereas the table index is created on following fields of RESB,

MATNR

WERKS

XLOEK

KZEAR

BDTER

What possible can be done in this respect as the program is a standard one we can change only in Table Inxex I guess..or what else can be done?

Can we add LGNUM LGTYP LGPLA into the particular index apart from the existing fields?

Re: Performance issue with RESB table

valter_oliveira — Thu, 15 May 2008 11:27:27 GMT

Hello.

In my opinion, considering that the query uses the first 4 fields of the index, that query should perform well (no need to change).

However, if you want to improve it, once again, in my opinion, you shoud create a new index (not changing the standard and not changing the standard program). The existing index, created that way, is used in other standard programs.

You can open a note in SAP site with your problem.

Best regards.

Valter Oliveira.

Re: Performance issue with RESB table

Former Member — Fri, 16 May 2008 05:13:08 GMT

Hi,

Instead of creating the Index, Get Data from RESB with the where clause having the entire key of the index and then loop to the internal and delete the unwanted entries as shown below.

loop at itab.

if itab-LGNUM = LGNUM AND

itab-LGTYP = LGTYP AND

itabLGPLA.

else.

delete itab index sy-tabix.

endif.

endloop.

As u r getting data with entire index fields the performance will surely increase. Also avoid Select * and retrieve whatever fields u require.

As you r not having value to the field BDTER, you can pass a range or select-options for this field which has empty valuee.

Regards,

Satya