ABAP Select data from SAP table RDGTXTEDI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDGTXTEDI
*  INTO TABLE @DATA(IT_RDGTXTEDI2).
*--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_RDGTXTEDI INDEX 1 INTO DATA(WA_RDGTXTEDI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDGTXTEDI>-VBELN = 1.
<RDGTXTEDI>-POSNR = 1.
<RDGTXTEDI>-MATNR = 1.
<RDGTXTEDI>-LWDG = 1.
<RDGTXTEDI>-RVLID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDGTXTEDI-MOT, sy-vline,
  WA_RDGTXTEDI-TDOBJECT, sy-vline,
  WA_RDGTXTEDI-TDNAME, sy-vline,
  WA_RDGTXTEDI-TDID, sy-vline,
  WA_RDGTXTEDI-TDSPRAS, sy-vline,
  WA_RDGTXTEDI-PHRSEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDGTXTEDI 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_RDGTXTEDI 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_RDGTXTEDI INTO WA_RDGTXTEDI.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RDGTXTEDI-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDGTXTEDI-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RDGTXTEDI-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDGTXTEDI-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RDGTXTEDI-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDGTXTEDI-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CHRI3, internal->external for field PHRSEL
CALL FUNCTION 'CONVERSION_EXIT_CHRI3_OUTPUT'
  EXPORTING
    input =                      WA_RDGTXTEDI-PHRSEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDGTXTEDI-PHRSEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RDGTXTEDI-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDGTXTEDI-LANGU.
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_RDGTXTEDI_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
LWDG TYPE STRING,
RVLID TYPE STRING,
MOT TYPE STRING,
TDOBJECT TYPE STRING,
TDNAME TYPE STRING,
TDID TYPE STRING,
TDSPRAS TYPE STRING,
PHRSEL TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
LANGU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDGTXTEDI_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_RDGTXTEDI_STR-VBELN sy-vline 
WA_RDGTXTEDI_STR-POSNR sy-vline 
WA_RDGTXTEDI_STR-MATNR sy-vline 
WA_RDGTXTEDI_STR-LWDG sy-vline 
WA_RDGTXTEDI_STR-RVLID sy-vline 
WA_RDGTXTEDI_STR-MOT sy-vline 
WA_RDGTXTEDI_STR-TDOBJECT sy-vline 
WA_RDGTXTEDI_STR-TDNAME sy-vline 
WA_RDGTXTEDI_STR-TDID sy-vline 
WA_RDGTXTEDI_STR-TDSPRAS sy-vline 
WA_RDGTXTEDI_STR-PHRSEL sy-vline 
WA_RDGTXTEDI_STR-TABNAME sy-vline 
WA_RDGTXTEDI_STR-FIELDNAME sy-vline 
WA_RDGTXTEDI_STR-LANGU sy-vline      INTO ld_text SEPARATED BY SPACE.

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