ABAP Select data from SAP table TF575 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TF575 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 TF575. 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 TF575 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_TF575 TYPE STANDARD TABLE OF TF575,
      WA_TF575 TYPE TF575,
      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: <TF575> TYPE TF575.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TF575.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TF575
  INTO TABLE IT_TF575.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TF575
*  INTO TABLE @DATA(IT_TF5752).
*--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_TF575 INDEX 1 INTO DATA(WA_TF5752).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TF575 ASSIGNING <TF575>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TF575>-MANDT = 1.
<TF575>-DIMEN = 1.
<TF575>-RVERS = 1.
<TF575>-CACTI = 1.
<TF575>-RYEAR = 1.

ENDLOOP.

LOOP AT IT_TF575 INTO WA_TF575.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TF575-PERID, sy-vline,
  WA_TF575-DOCTY1, sy-vline,
  WA_TF575-DOCTY3, sy-vline,
  WA_TF575-DOCTY4, sy-vline,
  WA_TF575-DOCTY5, sy-vline,
  WA_TF575-DOCTY6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TF575 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_TF575 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_TF575 INTO WA_TF575.


*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 RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TF575-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF575-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVGJ, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_INVGJ_OUTPUT'
  EXPORTING
    input =                      WA_TF575-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF575-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit INVPR, internal->external for field PERID
CALL FUNCTION 'CONVERSION_EXIT_INVPR_OUTPUT'
  EXPORTING
    input =                      WA_TF575-PERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF575-PERID.
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_TF575_STR, 
MANDT TYPE STRING,
DIMEN TYPE STRING,
RVERS TYPE STRING,
CACTI TYPE STRING,
RYEAR TYPE STRING,
PERID TYPE STRING,
DOCTY1 TYPE STRING,
DOCTY3 TYPE STRING,
DOCTY4 TYPE STRING,
DOCTY5 TYPE STRING,
DOCTY6 TYPE STRING,
DOCTY8 TYPE STRING,
DOCTY9 TYPE STRING,
DOCTY10 TYPE STRING,
DOCTY11 TYPE STRING,
DOCTY13 TYPE STRING,
DOCTY14 TYPE STRING,
DOCTY15 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TF575_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_TF575_STR-MANDT sy-vline 
WA_TF575_STR-DIMEN sy-vline 
WA_TF575_STR-RVERS sy-vline 
WA_TF575_STR-CACTI sy-vline 
WA_TF575_STR-RYEAR sy-vline 
WA_TF575_STR-PERID sy-vline 
WA_TF575_STR-DOCTY1 sy-vline 
WA_TF575_STR-DOCTY3 sy-vline 
WA_TF575_STR-DOCTY4 sy-vline 
WA_TF575_STR-DOCTY5 sy-vline 
WA_TF575_STR-DOCTY6 sy-vline 
WA_TF575_STR-DOCTY8 sy-vline 
WA_TF575_STR-DOCTY9 sy-vline 
WA_TF575_STR-DOCTY10 sy-vline 
WA_TF575_STR-DOCTY11 sy-vline 
WA_TF575_STR-DOCTY13 sy-vline 
WA_TF575_STR-DOCTY14 sy-vline 
WA_TF575_STR-DOCTY15 sy-vline      INTO ld_text SEPARATED BY SPACE.

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