ABAP Select data from SAP table T130F into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T130F 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 T130F. 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 T130F 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_T130F TYPE STANDARD TABLE OF T130F,
      WA_T130F TYPE T130F,
      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: <T130F> TYPE T130F.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T130F.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T130F
  INTO TABLE IT_T130F.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T130F
*  INTO TABLE @DATA(IT_T130F2).
*--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_T130F INDEX 1 INTO DATA(WA_T130F2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T130F ASSIGNING <T130F>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T130F>-MANDT = 1.
<T130F>-FNAME = 1.
<T130F>-FGRUP = 1.
<T130F>-VCODE = 1.
<T130F>-PSTAT = 1.

ENDLOOP.

LOOP AT IT_T130F INTO WA_T130F.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T130F-KZREF, sy-vline,
  WA_T130F-SFGRU, sy-vline,
  WA_T130F-KZKEY, sy-vline,
  WA_T130F-KZKMA, sy-vline,
  WA_T130F-FGROU, sy-vline,
  WA_T130F-REFTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T130F 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_T130F 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_T130F INTO WA_T130F.


*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_T130F_STR, 
MANDT TYPE STRING,
FNAME TYPE STRING,
FGRUP TYPE STRING,
VCODE TYPE STRING,
PSTAT TYPE STRING,
KZREF TYPE STRING,
SFGRU TYPE STRING,
KZKEY TYPE STRING,
KZKMA TYPE STRING,
FGROU TYPE STRING,
REFTY TYPE STRING,
KZCPY TYPE STRING,
RFINI TYPE STRING,
FIXRE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T130F_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_T130F_STR-MANDT sy-vline 
WA_T130F_STR-FNAME sy-vline 
WA_T130F_STR-FGRUP sy-vline 
WA_T130F_STR-VCODE sy-vline 
WA_T130F_STR-PSTAT sy-vline 
WA_T130F_STR-KZREF sy-vline 
WA_T130F_STR-SFGRU sy-vline 
WA_T130F_STR-KZKEY sy-vline 
WA_T130F_STR-KZKMA sy-vline 
WA_T130F_STR-FGROU sy-vline 
WA_T130F_STR-REFTY sy-vline 
WA_T130F_STR-KZCPY sy-vline 
WA_T130F_STR-RFINI sy-vline 
WA_T130F_STR-FIXRE sy-vline      INTO ld_text SEPARATED BY SPACE.

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