ABAP Select data from SAP table TRPAS_POSITION_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRPAS_POSITION_DATA
*  INTO TABLE @DATA(IT_TRPAS_POSITION_DATA2).
*--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_TRPAS_POSITION_DATA INDEX 1 INTO DATA(WA_TRPAS_POSITION_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRPAS_POSITION_DATA>-POSITION_GUID = 1.
<TRPAS_POSITION_DATA>-POS_MAN_PROC = 1.
<TRPAS_POSITION_DATA>-POSITION_CURR = 1.
<TRPAS_POSITION_DATA>-VALUATION_CURR = 1.
<TRPAS_POSITION_DATA>-ACTIVE_PASSIVE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRPAS_POSITION_DATA-SBILK, sy-vline,
  WA_TRPAS_POSITION_DATA-SKWG14NEU, sy-vline,
  WA_TRPAS_POSITION_DATA-RERF, sy-vline,
  WA_TRPAS_POSITION_DATA-DERF, sy-vline,
  WA_TRPAS_POSITION_DATA-TERF, sy-vline,
  WA_TRPAS_POSITION_DATA-REHER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRPAS_POSITION_DATA 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_TRPAS_POSITION_DATA 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_TRPAS_POSITION_DATA INTO WA_TRPAS_POSITION_DATA.


*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 POSCT, internal->external for field ACTIVE_PASSIVE
CALL FUNCTION 'CONVERSION_EXIT_POSCT_OUTPUT'
  EXPORTING
    input =                      WA_TRPAS_POSITION_DATA-ACTIVE_PASSIVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRPAS_POSITION_DATA-ACTIVE_PASSIVE.
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_TRPAS_POSITION_DATA_STR, 
POSITION_GUID TYPE STRING,
POS_MAN_PROC TYPE STRING,
POSITION_CURR TYPE STRING,
VALUATION_CURR TYPE STRING,
ACTIVE_PASSIVE TYPE STRING,
SBILK TYPE STRING,
SKWG14NEU TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
FLG_SUBPOSITION TYPE STRING,
LOT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRPAS_POSITION_DATA_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_TRPAS_POSITION_DATA_STR-POSITION_GUID sy-vline 
WA_TRPAS_POSITION_DATA_STR-POS_MAN_PROC sy-vline 
WA_TRPAS_POSITION_DATA_STR-POSITION_CURR sy-vline 
WA_TRPAS_POSITION_DATA_STR-VALUATION_CURR sy-vline 
WA_TRPAS_POSITION_DATA_STR-ACTIVE_PASSIVE sy-vline 
WA_TRPAS_POSITION_DATA_STR-SBILK sy-vline 
WA_TRPAS_POSITION_DATA_STR-SKWG14NEU sy-vline 
WA_TRPAS_POSITION_DATA_STR-RERF sy-vline 
WA_TRPAS_POSITION_DATA_STR-DERF sy-vline 
WA_TRPAS_POSITION_DATA_STR-TERF sy-vline 
WA_TRPAS_POSITION_DATA_STR-REHER sy-vline 
WA_TRPAS_POSITION_DATA_STR-RBEAR sy-vline 
WA_TRPAS_POSITION_DATA_STR-DBEAR sy-vline 
WA_TRPAS_POSITION_DATA_STR-TBEAR sy-vline 
WA_TRPAS_POSITION_DATA_STR-RBHER sy-vline 
WA_TRPAS_POSITION_DATA_STR-FLG_SUBPOSITION sy-vline 
WA_TRPAS_POSITION_DATA_STR-LOT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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