I need to loop through 1 table and read another until a value changes

[Former Member]

i need to read a table and sum the quantity field until a reason code changes. how do I go about doing this?

[Former Member]

sort itab by reasoncode.

Loop at itab.

quantiy = quanity + itab-quantity.

at end of reasoncode.

jtab-reasoncode = itab-reasoncodee.

jtab-sum = quantity.

append jtab.

clear quantity.

endat

endloop.

or

sort itab by reasoncode.

loop at itab.

at end of reasoncode.

sum.

jtab = itab.

append jtab.

endat.

endloop.

or

let us say itab and jtab are two tables and you want to loop through itab and read jtab for reasoncodes.

if jtab has only one entry for each entry in itab then use read else use loop.

loop at itab.

loop at jtab where reasoncode = itab-reasoncode.

quantiy = quantiy + jtab-quanity.

endloop.

endloop.

or

loop at itab.

read table jtab with key reasoncode = itab-reasoncode.

if sy-subrc eq 0.

endif

endloop.

[Former Member]

I am actually loop at a differnt table and reading another like this

loop at ITAB.

read table b

[Former Member]

let us say itab and jtab are two tables and you want to loop through itab and read jtab for reasoncodes.

if jtab has only one entry for each entry in itab then use read else use loop.

loop at itab.

loop at jtab where reasoncode = itab-reasoncode.

quantiy = quantiy + jtab-quanity.

endloop.

endloop.

or

loop at itab.

read table jtab with key reasoncode = itab-reasoncode.

if sy-subrc eq 0.

endif

endloop.

[Former Member]

HI,

Code like this:

loop itab1 into wa_itab1.

read table itab2 into wa_itab2 with key field2 = wa_itab1-field1.

if sy-subrc eq 0.

do the changes whatever you want.

endif.

endloop.

regards

Kannaiah

[Former Member]

Hi,

You can use AT NEW contruct inside the loop for this purpose.

Inside AT NEW reset the value of quantity else add the quantity into the variable.

Hope this will help you.

~ Ramanath.

[Former Member]

do you have an example of this

[Former Member]

You can refer to the following code for this.

LOOP AT itab INTO wa.

AT NEW region_id.

CLEAR wa_device.

ENDAT.

ENDLOOP.

Also you can use AT END OF construct similarly.

Hope this will help you.

~ Ramanath.