ABAP Select data from SAP table FMMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMMP
*  INTO TABLE @DATA(IT_FMMP2).
*--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_FMMP INDEX 1 INTO DATA(WA_FMMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMMP>-FIKRS = 1.
<FMMP>-FIPOS = 1.
<FMMP>-GJAHR = 1.
<FMMP>-PERIO = 1.
<FMMP>-WRTTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMMP-WTEXT, sy-vline,
  WA_FMMP-BUKRS, sy-vline,
  WA_FMMP-BUTXT, sy-vline,
  WA_FMMP-GSBER, sy-vline,
  WA_FMMP-GTEXT, sy-vline,
  WA_FMMP-GEBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMMP 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_FMMP 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_FMMP INTO WA_FMMP.


*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 FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FMMP-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMMP-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit FMCIS, internal->external for field ZAPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FMMP-ZAPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMMP-ZAPOS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_FMMP-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMMP-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMMP-KBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMMP-KBLNR.
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_FMMP_STR, 
FIKRS TYPE STRING,
FIPOS TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,
WRTTP TYPE STRING,
WTEXT TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
GSBER TYPE STRING,
GTEXT TYPE STRING,
GEBER TYPE STRING,
CPUDT TYPE STRING,
ZHLDT TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
ZAPOS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
POSID TYPE STRING,
POST1 TYPE STRING,
AUFNR TYPE STRING,
ATEXT TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
KTEXT TYPE STRING,
FWAER TYPE STRING,
FKBTR TYPE STRING,
FKBTRO TYPE STRING,
TWAER TYPE STRING,
TRBTR TYPE STRING,
TRBTRO TYPE STRING,
UMBKZ TYPE STRING,
DELKZ TYPE STRING,
VO_BUKRS TYPE STRING,
VO_GJAHR TYPE STRING,
VO_BELNR TYPE STRING,
VO_BUZEI TYPE STRING,
VO_FIVOR TYPE STRING,
VO_SAKNR TYPE STRING,
VO_LIFNR TYPE STRING,
VO_KUNNR TYPE STRING,
KN_BUKRS TYPE STRING,
KN_GJAHR TYPE STRING,
KN_BELNR TYPE STRING,
KN_BUZEI TYPE STRING,
KN_FIVOR TYPE STRING,
KN_SAKNR TYPE STRING,
KN_LIFNR TYPE STRING,
KN_KUNNR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
ETENR TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMMP_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_FMMP_STR-FIKRS sy-vline 
WA_FMMP_STR-FIPOS sy-vline 
WA_FMMP_STR-GJAHR sy-vline 
WA_FMMP_STR-PERIO sy-vline 
WA_FMMP_STR-WRTTP sy-vline 
WA_FMMP_STR-WTEXT sy-vline 
WA_FMMP_STR-BUKRS sy-vline 
WA_FMMP_STR-BUTXT sy-vline 
WA_FMMP_STR-GSBER sy-vline 
WA_FMMP_STR-GTEXT sy-vline 
WA_FMMP_STR-GEBER sy-vline 
WA_FMMP_STR-CPUDT sy-vline 
WA_FMMP_STR-ZHLDT sy-vline 
WA_FMMP_STR-BUDAT sy-vline 
WA_FMMP_STR-BLDAT sy-vline 
WA_FMMP_STR-ZAPOS sy-vline 
WA_FMMP_STR-KUNNR sy-vline 
WA_FMMP_STR-LIFNR sy-vline 
WA_FMMP_STR-POSID sy-vline 
WA_FMMP_STR-POST1 sy-vline 
WA_FMMP_STR-AUFNR sy-vline 
WA_FMMP_STR-ATEXT sy-vline 
WA_FMMP_STR-KOKRS sy-vline 
WA_FMMP_STR-KOSTL sy-vline 
WA_FMMP_STR-KTEXT sy-vline 
WA_FMMP_STR-FWAER sy-vline 
WA_FMMP_STR-FKBTR sy-vline 
WA_FMMP_STR-FKBTRO sy-vline 
WA_FMMP_STR-TWAER sy-vline 
WA_FMMP_STR-TRBTR sy-vline 
WA_FMMP_STR-TRBTRO sy-vline 
WA_FMMP_STR-UMBKZ sy-vline 
WA_FMMP_STR-DELKZ sy-vline 
WA_FMMP_STR-VO_BUKRS sy-vline 
WA_FMMP_STR-VO_GJAHR sy-vline 
WA_FMMP_STR-VO_BELNR sy-vline 
WA_FMMP_STR-VO_BUZEI sy-vline 
WA_FMMP_STR-VO_FIVOR sy-vline 
WA_FMMP_STR-VO_SAKNR sy-vline 
WA_FMMP_STR-VO_LIFNR sy-vline 
WA_FMMP_STR-VO_KUNNR sy-vline 
WA_FMMP_STR-KN_BUKRS sy-vline 
WA_FMMP_STR-KN_GJAHR sy-vline 
WA_FMMP_STR-KN_BELNR sy-vline 
WA_FMMP_STR-KN_BUZEI sy-vline 
WA_FMMP_STR-KN_FIVOR sy-vline 
WA_FMMP_STR-KN_SAKNR sy-vline 
WA_FMMP_STR-KN_LIFNR sy-vline 
WA_FMMP_STR-KN_KUNNR sy-vline 
WA_FMMP_STR-EBELN sy-vline 
WA_FMMP_STR-EBELP sy-vline 
WA_FMMP_STR-ZEKKN sy-vline 
WA_FMMP_STR-ETENR sy-vline 
WA_FMMP_STR-STUNR sy-vline 
WA_FMMP_STR-ZAEHK sy-vline 
WA_FMMP_STR-KBLNR sy-vline 
WA_FMMP_STR-KBLPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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