ABAP Select data from SAP table FAGL_DOC_LINE_ALV_AAO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGL_DOC_LINE_ALV_AAO table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to FAGL_DOC_LINE_ALV_AAO. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the FAGL_DOC_LINE_ALV_AAO table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_FAGL_DOC_LINE_ALV_AAO TYPE STANDARD TABLE OF FAGL_DOC_LINE_ALV_AAO,
      WA_FAGL_DOC_LINE_ALV_AAO TYPE FAGL_DOC_LINE_ALV_AAO,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <FAGL_DOC_LINE_ALV_AAO> TYPE FAGL_DOC_LINE_ALV_AAO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FAGL_DOC_LINE_ALV_AAO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FAGL_DOC_LINE_ALV_AAO
  INTO TABLE IT_FAGL_DOC_LINE_ALV_AAO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGL_DOC_LINE_ALV_AAO
*  INTO TABLE @DATA(IT_FAGL_DOC_LINE_ALV_AAO2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_FAGL_DOC_LINE_ALV_AAO INDEX 1 INTO DATA(WA_FAGL_DOC_LINE_ALV_AAO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FAGL_DOC_LINE_ALV_AAO ASSIGNING <FAGL_DOC_LINE_ALV_AAO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGL_DOC_LINE_ALV_AAO>-GSBER = 1.
<FAGL_DOC_LINE_ALV_AAO>-PARGB = 1.
<FAGL_DOC_LINE_ALV_AAO>-PRCTR = 1.
<FAGL_DOC_LINE_ALV_AAO>-PPRCTR = 1.
<FAGL_DOC_LINE_ALV_AAO>-SEGMENT = 1.

ENDLOOP.

LOOP AT IT_FAGL_DOC_LINE_ALV_AAO INTO WA_FAGL_DOC_LINE_ALV_AAO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGL_DOC_LINE_ALV_AAO-PSEGMENT, sy-vline,
  WA_FAGL_DOC_LINE_ALV_AAO-AUFNR, sy-vline,
  WA_FAGL_DOC_LINE_ALV_AAO-IMKEY, sy-vline,
  WA_FAGL_DOC_LINE_ALV_AAO-KDAUF, sy-vline,
  WA_FAGL_DOC_LINE_ALV_AAO-KDPOS, sy-vline,
  WA_FAGL_DOC_LINE_ALV_AAO-KOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGL_DOC_LINE_ALV_AAO you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_FAGL_DOC_LINE_ALV_AAO TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_FAGL_DOC_LINE_ALV_AAO INTO WA_FAGL_DOC_LINE_ALV_AAO.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-PPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-PPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PSEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-PSEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-PSEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NPLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-NPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-NPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-VBUND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EGRUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-EGRUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-EGRUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAGL_DOC_LINE_ALV_AAO-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAGL_DOC_LINE_ALV_AAO-RECID.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FAGL_DOC_LINE_ALV_AAO_STR, 
GSBER TYPE STRING,
PARGB TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
SEGMENT TYPE STRING,
PSEGMENT TYPE STRING,
AUFNR TYPE STRING,
IMKEY TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KOSTL TYPE STRING,
KSTRG TYPE STRING,
NPLNR TYPE STRING,
APLZL TYPE STRING,
AUFPL TYPE STRING,
PAOBJNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
VBUND TYPE STRING,
WERKS TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
VNAME TYPE STRING,
EGRUP TYPE STRING,
RECID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGL_DOC_LINE_ALV_AAO_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_FAGL_DOC_LINE_ALV_AAO_STR-GSBER sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-PARGB sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-PRCTR sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-PPRCTR sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-SEGMENT sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-PSEGMENT sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-AUFNR sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-IMKEY sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-KDAUF sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-KDPOS sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-KOSTL sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-KSTRG sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-NPLNR sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-APLZL sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-AUFPL sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-PAOBJNR sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-PS_PSP_PNR sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-VBUND sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-WERKS sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-FIPOS sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-FISTL sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-GEBER sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-VNAME sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-EGRUP sy-vline 
WA_FAGL_DOC_LINE_ALV_AAO_STR-RECID sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.