ABAP Select data from SAP table USH12_ARC_TMP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP USH12_ARC_TMP 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 USH12_ARC_TMP. 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 USH12_ARC_TMP 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_USH12_ARC_TMP TYPE STANDARD TABLE OF USH12_ARC_TMP,
      WA_USH12_ARC_TMP TYPE USH12_ARC_TMP,
      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: <USH12_ARC_TMP> TYPE USH12_ARC_TMP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_USH12_ARC_TMP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM USH12_ARC_TMP
  INTO TABLE IT_USH12_ARC_TMP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USH12_ARC_TMP
*  INTO TABLE @DATA(IT_USH12_ARC_TMP2).
*--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_USH12_ARC_TMP INDEX 1 INTO DATA(WA_USH12_ARC_TMP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_USH12_ARC_TMP ASSIGNING <USH12_ARC_TMP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USH12_ARC_TMP>-MANDT = 1.
<USH12_ARC_TMP>-OBJCT = 1.
<USH12_ARC_TMP>-AUTH = 1.
<USH12_ARC_TMP>-AKTPS = 1.
<USH12_ARC_TMP>-MODDA = 1.

ENDLOOP.

LOOP AT IT_USH12_ARC_TMP INTO WA_USH12_ARC_TMP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USH12_ARC_TMP-MODTI, sy-vline,
  WA_USH12_ARC_TMP-MODBE, sy-vline,
  WA_USH12_ARC_TMP-TYP, sy-vline,
  WA_USH12_ARC_TMP-LNG, sy-vline,
  WA_USH12_ARC_TMP-VALS, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_USH12_ARC_TMP 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_USH12_ARC_TMP 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_USH12_ARC_TMP INTO WA_USH12_ARC_TMP.


*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 AKTPA, internal->external for field AKTPS
CALL FUNCTION 'CONVERSION_EXIT_AKTPA_OUTPUT'
  EXPORTING
    input =                      WA_USH12_ARC_TMP-AKTPS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USH12_ARC_TMP-AKTPS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit XUTYP, internal->external for field TYP
CALL FUNCTION 'CONVERSION_EXIT_XUTYP_OUTPUT'
  EXPORTING
    input =                      WA_USH12_ARC_TMP-TYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USH12_ARC_TMP-TYP.
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_USH12_ARC_TMP_STR, 
MANDT TYPE STRING,
OBJCT TYPE STRING,
AUTH TYPE STRING,
AKTPS TYPE STRING,
MODDA TYPE STRING,
MODTI TYPE STRING,
MODBE TYPE STRING,
TYP TYPE STRING,
LNG TYPE STRING,
VALS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USH12_ARC_TMP_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_USH12_ARC_TMP_STR-MANDT sy-vline 
WA_USH12_ARC_TMP_STR-OBJCT sy-vline 
WA_USH12_ARC_TMP_STR-AUTH sy-vline 
WA_USH12_ARC_TMP_STR-AKTPS sy-vline 
WA_USH12_ARC_TMP_STR-MODDA sy-vline 
WA_USH12_ARC_TMP_STR-MODTI sy-vline 
WA_USH12_ARC_TMP_STR-MODBE sy-vline 
WA_USH12_ARC_TMP_STR-TYP sy-vline 
WA_USH12_ARC_TMP_STR-LNG sy-vline 
WA_USH12_ARC_TMP_STR-VALS sy-vline      INTO ld_text SEPARATED BY SPACE.

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