ABAP Select data from SAP table FMFG_UNFILL_SO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFG_UNFILL_SO
*  INTO TABLE @DATA(IT_FMFG_UNFILL_SO2).
*--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_FMFG_UNFILL_SO INDEX 1 INTO DATA(WA_FMFG_UNFILL_SO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFG_UNFILL_SO>-VBELN = 1.
<FMFG_UNFILL_SO>-POSNR = 1.
<FMFG_UNFILL_SO>-NEW_POSNR = 1.
<FMFG_UNFILL_SO>-KWMENG = 1.
<FMFG_UNFILL_SO>-FIRST_KWMENG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFG_UNFILL_SO-FONDS, sy-vline,
  WA_FMFG_UNFILL_SO-MEASURE, sy-vline,
  WA_FMFG_UNFILL_SO-BUDGET_PD, sy-vline,
  WA_FMFG_UNFILL_SO-BUS_AREA, sy-vline,
  WA_FMFG_UNFILL_SO-VKORG, sy-vline,
  WA_FMFG_UNFILL_SO-VTWEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFG_UNFILL_SO 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_FMFG_UNFILL_SO 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_FMFG_UNFILL_SO INTO WA_FMFG_UNFILL_SO.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_UNFILL_SO-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_UNFILL_SO-VBELN.
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_FMFG_UNFILL_SO_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
NEW_POSNR TYPE STRING,
KWMENG TYPE STRING,
FIRST_KWMENG TYPE STRING,
FONDS TYPE STRING,
MEASURE TYPE STRING,
BUDGET_PD TYPE STRING,
BUS_AREA TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
NEW_NETWR TYPE STRING,
RETURN_VAL TYPE STRING,
TOTAL_OBLI TYPE STRING,
TRBTR TYPE STRING,
TRBTR_ADDITIONAL TYPE STRING,
ORI_CONDITION TYPE STRING,
P_CONDITION TYPE STRING,
BILLING TYPE STRING,
NEW_LINE TYPE STRING,
DP_STATUS TYPE STRING,
OPEN_DP_AMOUNT TYPE STRING,
PERIODIC TYPE STRING,
LIGHT TYPE STRING,
REDUCE_STATUS TYPE STRING,
INSERT_STATUS TYPE STRING,
DOWNPAYMENT TYPE STRING,
SAVE_LIGHT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFG_UNFILL_SO_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_FMFG_UNFILL_SO_STR-VBELN sy-vline 
WA_FMFG_UNFILL_SO_STR-POSNR sy-vline 
WA_FMFG_UNFILL_SO_STR-NEW_POSNR sy-vline 
WA_FMFG_UNFILL_SO_STR-KWMENG sy-vline 
WA_FMFG_UNFILL_SO_STR-FIRST_KWMENG sy-vline 
WA_FMFG_UNFILL_SO_STR-FONDS sy-vline 
WA_FMFG_UNFILL_SO_STR-MEASURE sy-vline 
WA_FMFG_UNFILL_SO_STR-BUDGET_PD sy-vline 
WA_FMFG_UNFILL_SO_STR-BUS_AREA sy-vline 
WA_FMFG_UNFILL_SO_STR-VKORG sy-vline 
WA_FMFG_UNFILL_SO_STR-VTWEG sy-vline 
WA_FMFG_UNFILL_SO_STR-SPART sy-vline 
WA_FMFG_UNFILL_SO_STR-NETWR sy-vline 
WA_FMFG_UNFILL_SO_STR-WAERK sy-vline 
WA_FMFG_UNFILL_SO_STR-NEW_NETWR sy-vline 
WA_FMFG_UNFILL_SO_STR-RETURN_VAL sy-vline 
WA_FMFG_UNFILL_SO_STR-TOTAL_OBLI sy-vline 
WA_FMFG_UNFILL_SO_STR-TRBTR sy-vline 
WA_FMFG_UNFILL_SO_STR-TRBTR_ADDITIONAL sy-vline 
WA_FMFG_UNFILL_SO_STR-ORI_CONDITION sy-vline 
WA_FMFG_UNFILL_SO_STR-P_CONDITION sy-vline 
WA_FMFG_UNFILL_SO_STR-BILLING sy-vline 
WA_FMFG_UNFILL_SO_STR-NEW_LINE sy-vline 
WA_FMFG_UNFILL_SO_STR-DP_STATUS sy-vline 
WA_FMFG_UNFILL_SO_STR-OPEN_DP_AMOUNT sy-vline 
WA_FMFG_UNFILL_SO_STR-PERIODIC sy-vline 
WA_FMFG_UNFILL_SO_STR-LIGHT sy-vline 
WA_FMFG_UNFILL_SO_STR-REDUCE_STATUS sy-vline 
WA_FMFG_UNFILL_SO_STR-INSERT_STATUS sy-vline 
WA_FMFG_UNFILL_SO_STR-DOWNPAYMENT sy-vline 
WA_FMFG_UNFILL_SO_STR-SAVE_LIGHT sy-vline      INTO ld_text SEPARATED BY SPACE.

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