ABAP Select data from SAP table TRPAS_POS_TRANS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP TRPAS_POS_TRANS 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_POS_TRANS. 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_POS_TRANS 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_POS_TRANS TYPE STANDARD TABLE OF TRPAS_POS_TRANS,
      WA_TRPAS_POS_TRANS TYPE TRPAS_POS_TRANS,
      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_POS_TRANS> TYPE TRPAS_POS_TRANS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRPAS_POS_TRANS
*  INTO TABLE @DATA(IT_TRPAS_POS_TRANS2).
*--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_POS_TRANS INDEX 1 INTO DATA(WA_TRPAS_POS_TRANS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRPAS_POS_TRANS>-OS_GUID = 1.
<TRPAS_POS_TRANS>-CLASSIFIED_OID = 1.
<TRPAS_POS_TRANS>-CLASSIFIED_CLS = 1.
<TRPAS_POS_TRANS>-BUSTRANSSTATE = 1.
<TRPAS_POS_TRANS>-BUSTRANSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRPAS_POS_TRANS-TR_ACC_CODE, sy-vline,
  WA_TRPAS_POS_TRANS-BUSTRANSCAT, sy-vline,
  WA_TRPAS_POS_TRANS-VALUATION_AREA, sy-vline,
  WA_TRPAS_POS_TRANS-FLOWS, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_TRPAS_POS_TRANS 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_POS_TRANS 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_POS_TRANS INTO WA_TRPAS_POS_TRANS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TRPAS_POS_TRANS_STR, 
OS_GUID TYPE STRING,
CLASSIFIED_OID TYPE STRING,
CLASSIFIED_CLS TYPE STRING,
BUSTRANSSTATE TYPE STRING,
BUSTRANSID TYPE STRING,
TR_ACC_CODE TYPE STRING,
BUSTRANSCAT TYPE STRING,
VALUATION_AREA TYPE STRING,
FLOWS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRPAS_POS_TRANS_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_POS_TRANS_STR-OS_GUID sy-vline 
WA_TRPAS_POS_TRANS_STR-CLASSIFIED_OID sy-vline 
WA_TRPAS_POS_TRANS_STR-CLASSIFIED_CLS sy-vline 
WA_TRPAS_POS_TRANS_STR-BUSTRANSSTATE sy-vline 
WA_TRPAS_POS_TRANS_STR-BUSTRANSID sy-vline 
WA_TRPAS_POS_TRANS_STR-TR_ACC_CODE sy-vline 
WA_TRPAS_POS_TRANS_STR-BUSTRANSCAT sy-vline 
WA_TRPAS_POS_TRANS_STR-VALUATION_AREA sy-vline 
WA_TRPAS_POS_TRANS_STR-FLOWS sy-vline      INTO ld_text SEPARATED BY SPACE.

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