ABAP Select data from SAP table ACES_DIS_ITEM_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACES_DIS_ITEM_ALV 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 ACES_DIS_ITEM_ALV. 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 ACES_DIS_ITEM_ALV 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_ACES_DIS_ITEM_ALV TYPE STANDARD TABLE OF ACES_DIS_ITEM_ALV,
      WA_ACES_DIS_ITEM_ALV TYPE ACES_DIS_ITEM_ALV,
      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: <ACES_DIS_ITEM_ALV> TYPE ACES_DIS_ITEM_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACES_DIS_ITEM_ALV
*  INTO TABLE @DATA(IT_ACES_DIS_ITEM_ALV2).
*--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_ACES_DIS_ITEM_ALV INDEX 1 INTO DATA(WA_ACES_DIS_ITEM_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACES_DIS_ITEM_ALV>-ITEMTYPE = 1.
<ACES_DIS_ITEM_ALV>-ITEMTYPE_TXT = 1.
<ACES_DIS_ITEM_ALV>-RLDNR = 1.
<ACES_DIS_ITEM_ALV>-LDGRP = 1.
<ACES_DIS_ITEM_ALV>-COMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACES_DIS_ITEM_ALV-BUKRS, sy-vline,
  WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_WSL, sy-vline,
  WA_ACES_DIS_ITEM_ALV-RWCURTTL, sy-vline,
  WA_ACES_DIS_ITEM_ALV-QUANTITY, sy-vline,
  WA_ACES_DIS_ITEM_ALV-UNIT, sy-vline,
  WA_ACES_DIS_ITEM_ALV-ACRMETHOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACES_DIS_ITEM_ALV 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_ACES_DIS_ITEM_ALV 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_ACES_DIS_ITEM_ALV INTO WA_ACES_DIS_ITEM_ALV.


*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 ITEMTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-ITEMTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-ITEMTYPE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_WSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_WSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_WSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_HSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_HSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_HSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_KSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_KSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_KSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_OSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_OSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_OSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_VSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_VSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_VSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_BSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_BSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_BSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_CSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_CSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_CSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_DSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_DSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_DSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_ESL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_ESL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_ESL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_FSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_FSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_FSL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TOTAL_ACCR_AMNT_GSL
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_GSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACES_DIS_ITEM_ALV-TOTAL_ACCR_AMNT_GSL.
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_ACES_DIS_ITEM_ALV_STR, 
ITEMTYPE TYPE STRING,
ITEMTYPE_TXT TYPE STRING,
RLDNR TYPE STRING,
LDGRP TYPE STRING,
COMP TYPE STRING,
BUKRS TYPE STRING,
TOTAL_ACCR_AMNT_WSL TYPE STRING,
RWCURTTL TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
ACRMETHOD TYPE STRING,
LIFE_START_DATE TYPE STRING,
LIFE_END_DATE TYPE STRING,
TOTAL_ACCR_AMNT_HSL TYPE STRING,
RHCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_KSL TYPE STRING,
RKCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_OSL TYPE STRING,
ROCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_VSL TYPE STRING,
RVCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_BSL TYPE STRING,
RBCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_CSL TYPE STRING,
RCCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_DSL TYPE STRING,
RDCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_ESL TYPE STRING,
RECURTTL TYPE STRING,
TOTAL_ACCR_AMNT_FSL TYPE STRING,
RFCURTTL TYPE STRING,
TOTAL_ACCR_AMNT_GSL TYPE STRING,
RGCURTTL TYPE STRING,
XOBSOLETE TYPE STRING,
XDEPENDENT TYPE STRING,
CELLTAB TYPE STRING,
XNEWITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACES_DIS_ITEM_ALV_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_ACES_DIS_ITEM_ALV_STR-ITEMTYPE sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-ITEMTYPE_TXT sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RLDNR sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-LDGRP sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-COMP sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-BUKRS sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_WSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RWCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-QUANTITY sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-UNIT sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-ACRMETHOD sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-LIFE_START_DATE sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-LIFE_END_DATE sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_HSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RHCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_KSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RKCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_OSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-ROCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_VSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RVCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_BSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RBCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_CSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RCCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_DSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RDCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_ESL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RECURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_FSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RFCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-TOTAL_ACCR_AMNT_GSL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-RGCURTTL sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-XOBSOLETE sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-XDEPENDENT sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-CELLTAB sy-vline 
WA_ACES_DIS_ITEM_ALV_STR-XNEWITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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