ABAP Select data from SAP table /SAPAPO/S_TRMCARRX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/S_TRMCARRX
*  INTO TABLE @DATA(IT_/SAPAPO/S_TRMCARRX2).
*--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_/SAPAPO/S_TRMCARRX INDEX 1 INTO DATA(WA_/SAPAPO/S_TRMCARRX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/S_TRMCARRX>-TRMCARRID = 1.
</SAPAPO/S_TRMCARRX>-TRNAME = 1.
</SAPAPO/S_TRMCARRX>-LOCFR = 1.
</SAPAPO/S_TRMCARRX>-LOCNOFR = 1.
</SAPAPO/S_TRMCARRX>-LOCTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/S_TRMCARRX-LOCNOTO, sy-vline,
  WA_/SAPAPO/S_TRMCARRX-TTYPE, sy-vline,
  WA_/SAPAPO/S_TRMCARRX-PARTNER, sy-vline,
  WA_/SAPAPO/S_TRMCARRX-LOCID, sy-vline,
  WA_/SAPAPO/S_TRMCARRX-LOCNO, sy-vline,
  WA_/SAPAPO/S_TRMCARRX-VALFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/S_TRMCARRX 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_/SAPAPO/S_TRMCARRX 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_/SAPAPO/S_TRMCARRX INTO WA_/SAPAPO/S_TRMCARRX.


*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 ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/S_TRMCARRX-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/S_TRMCARRX-PARTNER.
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_/SAPAPO/S_TRMCARRX_STR, 
TRMCARRID TYPE STRING,
TRNAME TYPE STRING,
LOCFR TYPE STRING,
LOCNOFR TYPE STRING,
LOCTO TYPE STRING,
LOCNOTO TYPE STRING,
TTYPE TYPE STRING,
PARTNER TYPE STRING,
LOCID TYPE STRING,
LOCNO TYPE STRING,
VALFR TYPE STRING,
DVALFR TYPE STRING,
VALTO TYPE STRING,
DVALTO TYPE STRING,
CARRTRCOST TYPE STRING,
CARRTRCOSTUNIT TYPE STRING,
CARRCOST TYPE STRING,
CARRPRIO TYPE STRING,
BUSNSSHARE TYPE STRING,
MINSHIP TYPE STRING,
MAXSHIP TYPE STRING,
CMDTWEU TYPE STRING,
CMDTWE TYPE STRING,
CMDTWLU TYPE STRING,
CMDTWL TYPE STRING,
CMATWEU TYPE STRING,
CMATWE TYPE STRING,
CMATWLU TYPE STRING,
CMATWL TYPE STRING,
CMMAXD TYPE STRING,
CMRECC TYPE STRING,
CMDISC TYPE STRING,
DCARRCOST TYPE STRING,
DDISTUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/S_TRMCARRX_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_/SAPAPO/S_TRMCARRX_STR-TRMCARRID sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-TRNAME sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-LOCFR sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-LOCNOFR sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-LOCTO sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-LOCNOTO sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-TTYPE sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-PARTNER sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-LOCID sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-LOCNO sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-VALFR sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-DVALFR sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-VALTO sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-DVALTO sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CARRTRCOST sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CARRTRCOSTUNIT sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CARRCOST sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CARRPRIO sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-BUSNSSHARE sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-MINSHIP sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-MAXSHIP sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMDTWEU sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMDTWE sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMDTWLU sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMDTWL sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMATWEU sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMATWE sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMATWLU sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMATWL sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMMAXD sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMRECC sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-CMDISC sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-DCARRCOST sy-vline 
WA_/SAPAPO/S_TRMCARRX_STR-DDISTUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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