ABAP Select data from SAP table ADEXS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ADEXS
*  INTO TABLE @DATA(IT_ADEXS2).
*--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_ADEXS INDEX 1 INTO DATA(WA_ADEXS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ADEXS>-MATNR = 1.
<ADEXS>-WERKS = 1.
<ADEXS>-ERFME = 1.
<ADEXS>-TYP1 = 1.
<ADEXS>-KEY1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ADEXS-VORNR1, sy-vline,
  WA_ADEXS-POSNR1, sy-vline,
  WA_ADEXS-LGORT1, sy-vline,
  WA_ADEXS-CHARG1, sy-vline,
  WA_ADEXS-MENGE1, sy-vline,
  WA_ADEXS-QTY1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ADEXS 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_ADEXS 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_ADEXS INTO WA_ADEXS.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ADEXS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADEXS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field VORNR1
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ADEXS-VORNR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADEXS-VORNR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field POSNR1
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ADEXS-POSNR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADEXS-POSNR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR2
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ADEXS-VORNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADEXS-VORNR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field POSNR2
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ADEXS-POSNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADEXS-POSNR2.
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_ADEXS_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
ERFME TYPE STRING,
TYP1 TYPE STRING,
KEY1 TYPE STRING,
VORNR1 TYPE STRING,
POSNR1 TYPE STRING,
LGORT1 TYPE STRING,
CHARG1 TYPE STRING,
MENGE1 TYPE STRING,
QTY1 TYPE STRING,
SEPARATOR TYPE STRING,
TYP2 TYPE STRING,
KEY2 TYPE STRING,
VORNR2 TYPE STRING,
POSNR2 TYPE STRING,
LGORT2 TYPE STRING,
CHARG2 TYPE STRING,
DATUM2 TYPE STRING,
MENGE2 TYPE STRING,
QTY2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ADEXS_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_ADEXS_STR-MATNR sy-vline 
WA_ADEXS_STR-WERKS sy-vline 
WA_ADEXS_STR-ERFME sy-vline 
WA_ADEXS_STR-TYP1 sy-vline 
WA_ADEXS_STR-KEY1 sy-vline 
WA_ADEXS_STR-VORNR1 sy-vline 
WA_ADEXS_STR-POSNR1 sy-vline 
WA_ADEXS_STR-LGORT1 sy-vline 
WA_ADEXS_STR-CHARG1 sy-vline 
WA_ADEXS_STR-MENGE1 sy-vline 
WA_ADEXS_STR-QTY1 sy-vline 
WA_ADEXS_STR-SEPARATOR sy-vline 
WA_ADEXS_STR-TYP2 sy-vline 
WA_ADEXS_STR-KEY2 sy-vline 
WA_ADEXS_STR-VORNR2 sy-vline 
WA_ADEXS_STR-POSNR2 sy-vline 
WA_ADEXS_STR-LGORT2 sy-vline 
WA_ADEXS_STR-CHARG2 sy-vline 
WA_ADEXS_STR-DATUM2 sy-vline 
WA_ADEXS_STR-MENGE2 sy-vline 
WA_ADEXS_STR-QTY2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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