ABAP Select data from SAP table FMFG_CLOI_FIELDS_AP_MM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMFG_CLOI_FIELDS_AP_MM 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_CLOI_FIELDS_AP_MM. 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_CLOI_FIELDS_AP_MM 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_CLOI_FIELDS_AP_MM TYPE STANDARD TABLE OF FMFG_CLOI_FIELDS_AP_MM,
      WA_FMFG_CLOI_FIELDS_AP_MM TYPE FMFG_CLOI_FIELDS_AP_MM,
      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_CLOI_FIELDS_AP_MM> TYPE FMFG_CLOI_FIELDS_AP_MM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFG_CLOI_FIELDS_AP_MM
*  INTO TABLE @DATA(IT_FMFG_CLOI_FIELDS_AP_MM2).
*--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_CLOI_FIELDS_AP_MM INDEX 1 INTO DATA(WA_FMFG_CLOI_FIELDS_AP_MM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFG_CLOI_FIELDS_AP_MM>-BUKRS = 1.
<FMFG_CLOI_FIELDS_AP_MM>-WERKS = 1.
<FMFG_CLOI_FIELDS_AP_MM>-LIFNR = 1.
<FMFG_CLOI_FIELDS_AP_MM>-YRCL_AWTYP = 1.
<FMFG_CLOI_FIELDS_AP_MM>-EBELN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFG_CLOI_FIELDS_AP_MM-EBELP, sy-vline,
  WA_FMFG_CLOI_FIELDS_AP_MM-MATNR, sy-vline,
  WA_FMFG_CLOI_FIELDS_AP_MM-KNTTP, sy-vline,
  WA_FMFG_CLOI_FIELDS_AP_MM-TXZ01, sy-vline,
  WA_FMFG_CLOI_FIELDS_AP_MM-MENGE, sy-vline,
  WA_FMFG_CLOI_FIELDS_AP_MM-MENGE_GR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFG_CLOI_FIELDS_AP_MM 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_CLOI_FIELDS_AP_MM 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_CLOI_FIELDS_AP_MM INTO WA_FMFG_CLOI_FIELDS_AP_MM.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_CLOI_FIELDS_AP_MM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_CLOI_FIELDS_AP_MM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_CLOI_FIELDS_AP_MM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_CLOI_FIELDS_AP_MM-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_CLOI_FIELDS_AP_MM-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_CLOI_FIELDS_AP_MM-FIPOS.
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_CLOI_FIELDS_AP_MM_STR, 
BUKRS TYPE STRING,
WERKS TYPE STRING,
LIFNR TYPE STRING,
YRCL_AWTYP TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
MATNR TYPE STRING,
KNTTP TYPE STRING,
TXZ01 TYPE STRING,
MENGE TYPE STRING,
MENGE_GR TYPE STRING,
MENGE_IR TYPE STRING,
MEINS TYPE STRING,
NETPR TYPE STRING,
WRBTR_IR_TOT TYPE STRING,
WRBTR_GR_TOT TYPE STRING,
PSTYP TYPE STRING,
VRTKZ TYPE STRING,
WEPOS TYPE STRING,
WEUNB TYPE STRING,
REPOS TYPE STRING,
WEBRE TYPE STRING,
FIPOS TYPE STRING,
GEBER TYPE STRING,
FISTL TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
DOCID TYPE STRING,
BUDGET_PD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFG_CLOI_FIELDS_AP_MM_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_CLOI_FIELDS_AP_MM_STR-BUKRS sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-WERKS sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-LIFNR sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-YRCL_AWTYP sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-EBELN sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-EBELP sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-MATNR sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-KNTTP sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-TXZ01 sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-MENGE sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-MENGE_GR sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-MENGE_IR sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-MEINS sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-NETPR sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-WRBTR_IR_TOT sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-WRBTR_GR_TOT sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-PSTYP sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-VRTKZ sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-WEPOS sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-WEUNB sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-REPOS sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-WEBRE sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-FIPOS sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-GEBER sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-FISTL sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-FKBER sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-MEASURE sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-DOCID sy-vline 
WA_FMFG_CLOI_FIELDS_AP_MM_STR-BUDGET_PD sy-vline      INTO ld_text SEPARATED BY SPACE.

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