ABAP Select data from SAP table /AIN/DM_ACT_OBJ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /AIN/DM_ACT_OBJ 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 /AIN/DM_ACT_OBJ. 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 /AIN/DM_ACT_OBJ 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_/AIN/DM_ACT_OBJ TYPE STANDARD TABLE OF /AIN/DM_ACT_OBJ,
      WA_/AIN/DM_ACT_OBJ TYPE /AIN/DM_ACT_OBJ,
      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: </AIN/DM_ACT_OBJ> TYPE /AIN/DM_ACT_OBJ.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /AIN/DM_ACT_OBJ
  INTO TABLE IT_/AIN/DM_ACT_OBJ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /AIN/DM_ACT_OBJ
*  INTO TABLE @DATA(IT_/AIN/DM_ACT_OBJ2).
*--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_/AIN/DM_ACT_OBJ INDEX 1 INTO DATA(WA_/AIN/DM_ACT_OBJ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/AIN/DM_ACT_OBJ ASSIGNING </AIN/DM_ACT_OBJ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</AIN/DM_ACT_OBJ>-CLIENT = 1.
</AIN/DM_ACT_OBJ>-ACT_GUID = 1.
</AIN/DM_ACT_OBJ>-OBJ_GUID = 1.
</AIN/DM_ACT_OBJ>-ACTION_TYPE = 1.
</AIN/DM_ACT_OBJ>-DOBJ_GUID = 1.

ENDLOOP.

LOOP AT IT_/AIN/DM_ACT_OBJ INTO WA_/AIN/DM_ACT_OBJ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/AIN/DM_ACT_OBJ-TOP_OBJ_GUID, sy-vline,
  WA_/AIN/DM_ACT_OBJ-PRT_OBJ_GUID, sy-vline,
  WA_/AIN/DM_ACT_OBJ-GTIN, sy-vline,
  WA_/AIN/DM_ACT_OBJ-GTIN_VAR, sy-vline,
  WA_/AIN/DM_ACT_OBJ-SSCC, sy-vline,
  WA_/AIN/DM_ACT_OBJ-PROD_GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/AIN/DM_ACT_OBJ 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_/AIN/DM_ACT_OBJ 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_/AIN/DM_ACT_OBJ INTO WA_/AIN/DM_ACT_OBJ.


*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 GTIN1, internal->external for field GTIN
CALL FUNCTION 'CONVERSION_EXIT_GTIN1_OUTPUT'
  EXPORTING
    input =                      WA_/AIN/DM_ACT_OBJ-GTIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIN/DM_ACT_OBJ-GTIN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTPS, internal->external for field EXEC_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/AIN/DM_ACT_OBJ-EXEC_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIN/DM_ACT_OBJ-EXEC_TIME.
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_/AIN/DM_ACT_OBJ_STR, 
CLIENT TYPE STRING,
ACT_GUID TYPE STRING,
OBJ_GUID TYPE STRING,
ACTION_TYPE TYPE STRING,
DOBJ_GUID TYPE STRING,
TOP_OBJ_GUID TYPE STRING,
PRT_OBJ_GUID TYPE STRING,
GTIN TYPE STRING,
GTIN_VAR TYPE STRING,
SSCC TYPE STRING,
PROD_GUID TYPE STRING,
OBJ_UOM TYPE STRING,
EPC1 TYPE STRING,
EPC1_VERSION TYPE STRING,
EPC2 TYPE STRING,
EPC2_VERSION TYPE STRING,
EXEC_TIME TYPE STRING,
DEV_GUID TYPE STRING,
EPC_IN_DOCUMENT TYPE STRING,
EPC_IN_STOCK TYPE STRING,
STATUS TYPE STRING,
UNAME TYPE STRING,
PRE_ACT_GUID TYPE STRING,
PRE_PRT_OBJ_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/AIN/DM_ACT_OBJ_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_/AIN/DM_ACT_OBJ_STR-CLIENT sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-ACT_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-OBJ_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-ACTION_TYPE sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-DOBJ_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-TOP_OBJ_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-PRT_OBJ_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-GTIN sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-GTIN_VAR sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-SSCC sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-PROD_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-OBJ_UOM sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EPC1 sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EPC1_VERSION sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EPC2 sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EPC2_VERSION sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EXEC_TIME sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-DEV_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EPC_IN_DOCUMENT sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-EPC_IN_STOCK sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-STATUS sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-UNAME sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-PRE_ACT_GUID sy-vline 
WA_/AIN/DM_ACT_OBJ_STR-PRE_PRT_OBJ_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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