ABAP Select data from SAP table /MDG/_S_0G_PDF_FRSITXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MDG/_S_0G_PDF_FRSITXT 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 /MDG/_S_0G_PDF_FRSITXT. 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 /MDG/_S_0G_PDF_FRSITXT 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_/MDG/_S_0G_PDF_FRSITXT TYPE STANDARD TABLE OF /MDG/_S_0G_PDF_FRSITXT,
      WA_/MDG/_S_0G_PDF_FRSITXT TYPE /MDG/_S_0G_PDF_FRSITXT,
      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: </MDG/_S_0G_PDF_FRSITXT> TYPE /MDG/_S_0G_PDF_FRSITXT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/MDG/_S_0G_PDF_FRSITXT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MDG/_S_0G_PDF_FRSITXT
  INTO TABLE IT_/MDG/_S_0G_PDF_FRSITXT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDG/_S_0G_PDF_FRSITXT
*  INTO TABLE @DATA(IT_/MDG/_S_0G_PDF_FRSITXT2).
*--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_/MDG/_S_0G_PDF_FRSITXT INDEX 1 INTO DATA(WA_/MDG/_S_0G_PDF_FRSITXT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MDG/_S_0G_PDF_FRSITXT ASSIGNING </MDG/_S_0G_PDF_FRSITXT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDG/_S_0G_PDF_FRSITXT>-LANGUAGE = 1.
</MDG/_S_0G_PDF_FRSITXT>-FRSITBEG1 = 1.
</MDG/_S_0G_PDF_FRSITXT>-FRSITBEG2 = 1.
</MDG/_S_0G_PDF_FRSITXT>-FRSITBEG3 = 1.
</MDG/_S_0G_PDF_FRSITXT>-FRSITBEG4 = 1.

ENDLOOP.

LOOP AT IT_/MDG/_S_0G_PDF_FRSITXT INTO WA_/MDG/_S_0G_PDF_FRSITXT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDG/_S_0G_PDF_FRSITXT-FRSITEND1, sy-vline,
  WA_/MDG/_S_0G_PDF_FRSITXT-FRSITEND2, sy-vline,
  WA_/MDG/_S_0G_PDF_FRSITXT-FRSITEND3, sy-vline,
  WA_/MDG/_S_0G_PDF_FRSITXT-FRSITEND4, sy-vline,
  WA_/MDG/_S_0G_PDF_FRSITXT-FRSITTOT1, sy-vline,
  WA_/MDG/_S_0G_PDF_FRSITXT-FRSITTOT2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDG/_S_0G_PDF_FRSITXT 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_/MDG/_S_0G_PDF_FRSITXT 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_/MDG/_S_0G_PDF_FRSITXT INTO WA_/MDG/_S_0G_PDF_FRSITXT.


*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 ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/MDG/_S_0G_PDF_FRSITXT-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDG/_S_0G_PDF_FRSITXT-LANGUAGE.
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_/MDG/_S_0G_PDF_FRSITXT_STR, 
LANGUAGE TYPE STRING,
FRSITBEG1 TYPE STRING,
FRSITBEG2 TYPE STRING,
FRSITBEG3 TYPE STRING,
FRSITBEG4 TYPE STRING,
FRSITEND1 TYPE STRING,
FRSITEND2 TYPE STRING,
FRSITEND3 TYPE STRING,
FRSITEND4 TYPE STRING,
FRSITTOT1 TYPE STRING,
FRSITTOT2 TYPE STRING,
FRSITTOT3 TYPE STRING,
FRSITTOT4 TYPE STRING,
USMD_DESCRIPTION TYPE STRING,
LANGUAGE TYPE STRING,
USMD_EDITION_TO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDG/_S_0G_PDF_FRSITXT_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_/MDG/_S_0G_PDF_FRSITXT_STR-LANGUAGE sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITBEG1 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITBEG2 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITBEG3 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITBEG4 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITEND1 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITEND2 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITEND3 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITEND4 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITTOT1 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITTOT2 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITTOT3 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-FRSITTOT4 sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-USMD_DESCRIPTION sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-LANGUAGE sy-vline 
WA_/MDG/_S_0G_PDF_FRSITXT_STR-USMD_EDITION_TO sy-vline      INTO ld_text SEPARATED BY SPACE.

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