ABAP Select data from SAP table TF070 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TF070 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 TF070. 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 TF070 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_TF070 TYPE STANDARD TABLE OF TF070,
      WA_TF070 TYPE TF070,
      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: <TF070> TYPE TF070.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TF070.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TF070
  INTO TABLE IT_TF070.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TF070
*  INTO TABLE @DATA(IT_TF0702).
*--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_TF070 INDEX 1 INTO DATA(WA_TF0702).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TF070 ASSIGNING <TF070>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TF070>-MANDT = 1.
<TF070>-HRYID = 1.
<TF070>-HRYVER = 1.
<TF070>-HRYTYP = 1.
<TF070>-NODECLS = 1.

ENDLOOP.

LOOP AT IT_TF070 INTO WA_TF070.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TF070-HRYNODE, sy-vline,
  WA_TF070-PARNODE, sy-vline,
  WA_TF070-HRYVALTO, sy-vline,
  WA_TF070-HRYVALFROM, sy-vline,
  WA_TF070-NODETYPE, sy-vline,
  WA_TF070-NODEVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TF070 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_TF070 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_TF070 INTO WA_TF070.


*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 HRYVER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TF070-HRYVER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF070-HRYVER.
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_TF070_STR, 
MANDT TYPE STRING,
HRYID TYPE STRING,
HRYVER TYPE STRING,
HRYTYP TYPE STRING,
NODECLS TYPE STRING,
HRYNODE TYPE STRING,
PARNODE TYPE STRING,
HRYVALTO TYPE STRING,
HRYVALFROM TYPE STRING,
NODETYPE TYPE STRING,
NODEVALUE TYPE STRING,
HRYSEQNBR TYPE STRING,
HRYLEVEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TF070_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_TF070_STR-MANDT sy-vline 
WA_TF070_STR-HRYID sy-vline 
WA_TF070_STR-HRYVER sy-vline 
WA_TF070_STR-HRYTYP sy-vline 
WA_TF070_STR-NODECLS sy-vline 
WA_TF070_STR-HRYNODE sy-vline 
WA_TF070_STR-PARNODE sy-vline 
WA_TF070_STR-HRYVALTO sy-vline 
WA_TF070_STR-HRYVALFROM sy-vline 
WA_TF070_STR-NODETYPE sy-vline 
WA_TF070_STR-NODEVALUE sy-vline 
WA_TF070_STR-HRYSEQNBR sy-vline 
WA_TF070_STR-HRYLEVEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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