ABAP Select data from SAP table RACSEGMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RACSEGMENT
*  INTO TABLE @DATA(IT_RACSEGMENT2).
*--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_RACSEGMENT INDEX 1 INTO DATA(WA_RACSEGMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RACSEGMENT>-AFABE = 1.
<RACSEGMENT>-RBW = 1.
<RACSEGMENT>-NAFA = 1.
<RACSEGMENT>-SAFA = 1.
<RACSEGMENT>-ZINS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RACSEGMENT-AUFWB, sy-vline,
  WA_RACSEGMENT-AUFNB, sy-vline,
  WA_RACSEGMENT-NAFAP, sy-vline,
  WA_RACSEGMENT-SAFAP, sy-vline,
  WA_RACSEGMENT-ZINSP, sy-vline,
  WA_RACSEGMENT-AUFWP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RACSEGMENT 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_RACSEGMENT 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_RACSEGMENT INTO WA_RACSEGMENT.


*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 AC132, internal->external for field RBW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-RBW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-RBW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-NAFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-NAFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFA
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-SAFA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-SAFA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field ZINS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-ZINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-ZINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-AUFWB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-AUFWB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-AUFNB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-AUFNB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-NAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-NAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-SAFAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-SAFAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZINSP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-ZINSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-ZINSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFWP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-AUFWP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-AUFWP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field AUFNP
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RACSEGMENT-AUFNP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RACSEGMENT-AUFNP.
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_RACSEGMENT_STR, 
AFABE TYPE STRING,
RBW TYPE STRING,
NAFA TYPE STRING,
SAFA TYPE STRING,
ZINS TYPE STRING,
AUFWB TYPE STRING,
AUFNB TYPE STRING,
NAFAP TYPE STRING,
SAFAP TYPE STRING,
ZINSP TYPE STRING,
AUFWP TYPE STRING,
AUFNP TYPE STRING,
SINDEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RACSEGMENT_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_RACSEGMENT_STR-AFABE sy-vline 
WA_RACSEGMENT_STR-RBW sy-vline 
WA_RACSEGMENT_STR-NAFA sy-vline 
WA_RACSEGMENT_STR-SAFA sy-vline 
WA_RACSEGMENT_STR-ZINS sy-vline 
WA_RACSEGMENT_STR-AUFWB sy-vline 
WA_RACSEGMENT_STR-AUFNB sy-vline 
WA_RACSEGMENT_STR-NAFAP sy-vline 
WA_RACSEGMENT_STR-SAFAP sy-vline 
WA_RACSEGMENT_STR-ZINSP sy-vline 
WA_RACSEGMENT_STR-AUFWP sy-vline 
WA_RACSEGMENT_STR-AUFNP sy-vline 
WA_RACSEGMENT_STR-SINDEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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