ABAP Select data from SAP table IFM_CHAIN_OUTPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFM_CHAIN_OUTPUT
*  INTO TABLE @DATA(IT_IFM_CHAIN_OUTPUT2).
*--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_IFM_CHAIN_OUTPUT INDEX 1 INTO DATA(WA_IFM_CHAIN_OUTPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFM_CHAIN_OUTPUT>-CHECK_BOX = 1.
<IFM_CHAIN_OUTPUT>-LOGICAL_ID = 1.
<IFM_CHAIN_OUTPUT>-CHAIN_ID = 1.
<IFM_CHAIN_OUTPUT>-FLG_ROOT = 1.
<IFM_CHAIN_OUTPUT>-ITEM_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFM_CHAIN_OUTPUT-ITEM_PREC_ID, sy-vline,
  WA_IFM_CHAIN_OUTPUT-STATUS, sy-vline,
  WA_IFM_CHAIN_OUTPUT-REFBT, sy-vline,
  WA_IFM_CHAIN_OUTPUT-REFBN, sy-vline,
  WA_IFM_CHAIN_OUTPUT-RFPOS, sy-vline,
  WA_IFM_CHAIN_OUTPUT-RFORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFM_CHAIN_OUTPUT 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_IFM_CHAIN_OUTPUT 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_IFM_CHAIN_OUTPUT INTO WA_IFM_CHAIN_OUTPUT.


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

*Conversion exit GJAHR, internal->external for field KNGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-KNGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-KNGJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FMBELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-FMBELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-FMBELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FMXDOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-FMXDOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-FMXDOCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FMXYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-FMXYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-FMXYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SLEDGER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-SLEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-SLEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CREATE_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-CREATE_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-CREATE_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field CURRENT_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-CURRENT_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-CURRENT_YEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SGRANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-SGRANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-SGRANT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field SFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-SFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-SFIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GNJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-GNJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-GNJHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CFDOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFM_CHAIN_OUTPUT-CFDOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFM_CHAIN_OUTPUT-CFDOCNR.
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_IFM_CHAIN_OUTPUT_STR, 
CHECK_BOX TYPE STRING,
LOGICAL_ID TYPE STRING,
CHAIN_ID TYPE STRING,
FLG_ROOT TYPE STRING,
ITEM_ID TYPE STRING,
ITEM_PREC_ID TYPE STRING,
STATUS TYPE STRING,
REFBT TYPE STRING,
REFBN TYPE STRING,
RFPOS TYPE STRING,
RFORG TYPE STRING,
RFKNT TYPE STRING,
RFETE TYPE STRING,
RCOND TYPE STRING,
BUKRS TYPE STRING,
KNGJAHR TYPE STRING,
FMBELNR TYPE STRING,
COLOR TYPE STRING,
FMXDOCNR TYPE STRING,
FMXYEAR TYPE STRING,
FMXDOCLN TYPE STRING,
WRTTP TYPE STRING,
WRTTPT TYPE STRING,
SLEDGER TYPE STRING,
SLEDGERT TYPE STRING,
CREATE_YEAR TYPE STRING,
CURRENT_YEAR TYPE STRING,
FKTBTR TYPE STRING,
TRTBTR TYPE STRING,
FKUBTR TYPE STRING,
TRUBTR TYPE STRING,
FKBTR TYPE STRING,
TRBTR TYPE STRING,
TWAER TYPE STRING,
SGRANT TYPE STRING,
SFONDS TYPE STRING,
SFISTL TYPE STRING,
SFIPEX TYPE STRING,
SFAREA TYPE STRING,
SMEASURE TYPE STRING,
SUSERDIM TYPE STRING,
SBUDGET_PD TYPE STRING,
GNJHR TYPE STRING,
LOEKZ TYPE STRING,
PAYFLG TYPE STRING,
CFSTAT TYPE STRING,
CFDOCNR TYPE STRING,
CFLEV TYPE STRING,
FLG_CFB TYPE STRING,
FLG_FDOC TYPE STRING,
MSGTYP TYPE STRING,
MESSAGE TYPE STRING,
MORE_ERR TYPE STRING,
SOLUTION TYPE STRING,
O_ELEMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFM_CHAIN_OUTPUT_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_IFM_CHAIN_OUTPUT_STR-CHECK_BOX sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-LOGICAL_ID sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-CHAIN_ID sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FLG_ROOT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-ITEM_ID sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-ITEM_PREC_ID sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-STATUS sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-REFBT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-REFBN sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-RFPOS sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-RFORG sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-RFKNT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-RFETE sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-RCOND sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-BUKRS sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-KNGJAHR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FMBELNR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-COLOR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FMXDOCNR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FMXYEAR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FMXDOCLN sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-WRTTP sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-WRTTPT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SLEDGER sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SLEDGERT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-CREATE_YEAR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-CURRENT_YEAR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FKTBTR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-TRTBTR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FKUBTR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-TRUBTR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FKBTR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-TRBTR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-TWAER sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SGRANT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SFONDS sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SFISTL sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SFIPEX sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SFAREA sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SMEASURE sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SUSERDIM sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SBUDGET_PD sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-GNJHR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-LOEKZ sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-PAYFLG sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-CFSTAT sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-CFDOCNR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-CFLEV sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FLG_CFB sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-FLG_FDOC sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-MSGTYP sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-MESSAGE sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-MORE_ERR sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-SOLUTION sy-vline 
WA_IFM_CHAIN_OUTPUT_STR-O_ELEMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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