Nested Internal Table

Former Member — Wed, 28 May 2008 17:21:59 GMT

Hi Gurus,

What are Nested Internal Tables? When we can use them ? What are the performance effects when we use them ? How can we declare them ?

Thanks and Regards ,

V.K

Edited by: vikram kagada on May 28, 2008 7:22 PM

Re: Nested Internal Table

Former Member — Wed, 28 May 2008 17:28:05 GMT

Hi Vikram,

Check this thread.,

Reward if useful

Thanks,

Swamy Kunche

Re: Nested Internal Table

Former Member — Wed, 28 May 2008 17:30:04 GMT

Hello,

Please read this: [https://www.sdn.sap.com/irj/sdn/wiki?path=/display/abap/internal%2btables].

Regards.

Re: Nested Internal Table

Former Member — Wed, 28 May 2008 17:33:08 GMT

Hi,

chk this sample code.

report ztest.

tables:pa0002.

data: begin of itab occurs 0,

pernr like pa0002-pernr,

vorna like pa0002-vorna,

nachn like pa0002-nachn,

end of itab.

data: begin of itab1 occurs 0,

pernr like pa0008-pernr,

begda like pa0008-begda,

stvor like pa0008-stvor,

ansal like pa0008-ansal,

end of itab1.

data :begin of itab2 occurs 0,

pernr like pa0021-pernr,

favor like pa0021-favor,

fanam like pa0021-fanam,

end of itab2.

data:begin of itab3 occurs 0,

pernr like pa0041-pernr,

dar01 like pa0041-dar01,

dat01 like pa0041-dat01,

end of itab3.

data:begin of final occurs 0,

pernr like pa0002-pernr,

vorna like pa0002-vorna,

nachn like pa0002-nachn,

begda like pa0008-begda,

stvor like pa0008-stvor,

ansal like pa0008-ansal,

favor like pa0021-favor,

fanam like pa0021-fanam,

dar01 like pa0041-dar01,

dat01 like pa0041-dat01,

end of final.

select-options:s_pernr for pa0002-pernr.

select pernr

vorna

nachn

from pa0002

into table itab

where pernr in s_pernr.

select pernr

begda

stvor

ansal

from pa0008

into table itab1

for all entries in itab

where pernr = itab-pernr.

select pernr

favor

fanam

from pa0021

into table itab2

for all entries in itab1

where pernr = itab1-pernr.

select pernr

dar01

dat01

from pa0041

into table itab3

for all entries in itab2

where pernr = itab2-pernr.

loop at itab.

final-pernr = itab-pernr.

final-vorna = itab-vorna.

final-nachn = itab-nachn.

read table itab1 with key pernr = itab-pernr.

final-begda = itab1-begda.

final-stvor = itab1-stvor.

final-ansal = itab1-ansal.

read table itab2 with key pernr = itab1-pernr.

final-favor = itab2-favor.

final-fanam = itab2-fanam.

read table itab3 with key pernr = itab2-pernr.

final-dar01 = itab3-dar01 .

final-dat01 = itab3-dat01.

append final.

clear final.

endloop.

loop at final.

write:final-pernr ,

final-vorna ,

final-nachn ,

final-begda ,

final-stvor ,

final-ansal ,

final-favor ,

final-fanam ,

final-dar01 ,

final-dat01 .

endloop.

Regards

Sandeep Reddy

Re: Nested Internal Table

Former Member — Wed, 28 May 2008 17:46:12 GMT

Hi,

If I am not wrong, nested Itab are the internal tables defined as a component of another Internal table along with other components of second Itab, but the above link and example code was normal internal table data holding and processing.

Please correct me if I am wrong.

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