Insert data from more than one table in ALV Grid

Hello everybody!!!

I am an absolute beginner in SAP/ABAP development.

I ve seen various examples of displaying data from only one table in ALV Grid ( mostly they use sflight 😊 ).

What i want to do is to take data from three tables and do the same thing.

I have a screen with a custom container named "CC_ALV" and a button with fc "EXIT".

My code is the following :

First in the report:

&----

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*& Report ZALVDEMO

*&

&----

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*&

*&

&----

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REPORT ZALVDEMO.

*data decleration

+tables : mkpf,mseg,makt.+

+data: begin of zAVLTest occurs 0,+

+mblnr like mkpf-mblnr,+

+mjahr like mkpf-mjahr,+

+matnr like mseg-matnr,+

+maktx like makt-maktx,+

+erfmg like mseg-erfmg,+

+erfme like mseg-erfme,+

+werks like mseg-werks,+

+lgort like mseg-lgort,+

+end of zAVLTest.+

+data ok_code TYPE sy-ucomm.+

+data GRID TYPE REF TO CL_GUI_ALV_GRID.+

+data G_CUSTOM_CONTAINER TYPE REF TO CL_GUI_CUSTOM_CONTAINER.+

+* SELECTION SCREEN+

selection-screen begin of block b1 with frame title text-001.

select-options: s_mblnr for mkpf-mblnr.

parameters: s_mjahr like mkpf-mjahr obligatory default sy-datum(4).

selection-screen skip.

select-options: s_matnr for mseg-matnr,

s_werks for mseg-werks,

s_lgort for mseg-lgort.

selection-screen end of block b1.

*database selection

start-of-selection.

*SET PF-STATUS 'MENU'.

perform select_mat_doc.

end-of-selection.

*display data

call screen 0001.

INCLUDE ZALVDEMO_SELECT_MAT_DOCF01.

Then the include file:

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***INCLUDE ZALVDEMO_SELECT_MAT_DOCF01 .

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*& Form select_mat_doc

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+* text+

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+* --> p1 text+

+* <-- p2 text+

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+FORM select_mat_doc .+

+select * from mkpf INNER JOIN mseg on mkpf_{mblnr = mseg}mblnr and mkpf_{mjahr = mseg}mjahr+

inner join makt on makt_{matnr = mseg}matnr

into corresponding fields of table zAvlTest

where mseg~matnr in s_matnr and

mseg~werks in s_werks and

mseg~lgort in s_lgort and

mkpf~mblnr in s_mblnr and

mkpf~mjahr eq s_mjahr.

ENDFORM. " select_mat_doc

&----

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*& Module pbo_stock OUTPUT

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* text

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MODULE pbo_stock OUTPUT.

SET PF-STATUS 'MENU'.

IF G_CUSTOM_CONTAINER IS INITIAL.

CREATE OBJECT G_CUSTOM_CONTAINER

EXPORTING CONTAINER_NAME = 'CC_ALV'.

CREATE OBJECT GRID

EXPORTING I_PARENT = G_CUSTOM_CONTAINER.

CALL METHOD GRID->SET_TABLE_FOR_FIRST_DISPLAY

EXPORTING I_STRUCTURE_NAME ='zalvtEST'

CHANGING IT_OUTTAB = gt_outtab[].

ENDIF.

ENDMODULE. " pbo_stock OUTPUT

&----

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*& Module pai_stock INPUT

&----

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* text

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MODULE pai_stock INPUT.

* to react on oi_custom_events:

call method cl_gui_cfw=>dispatch.

CASE OK_CODE.

WHEN 'EXIT'.

write: ' Exit Push Button'.

WHEN OTHERS.

* do nothing

ENDCASE.

CLEAR OK_CODE.

ENDMODULE. " pai_stock INPUT

Thanks in advance anyone who reads that and hope to get a response soon!!! 😊

P.S : i didn't have time to go htrough every thread so if smth like this was asked before, plz forgive me for consuming your time.