ABAP Select data from SAP table FMEP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMEP
*  INTO TABLE @DATA(IT_FMEP2).
*--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_FMEP INDEX 1 INTO DATA(WA_FMEP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMEP>-MANDT = 1.
<FMEP>-LEDNR = 1.
<FMEP>-OBJNR = 1.
<FMEP>-GJAHR = 1.
<FMEP>-PERIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMEP-GEBER, sy-vline,
  WA_FMEP-WRTTP, sy-vline,
  WA_FMEP-VORGA, sy-vline,
  WA_FMEP-POSIT, sy-vline,
  WA_FMEP-TWAER, sy-vline,
  WA_FMEP-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMEP 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_FMEP 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_FMEP INTO WA_FMEP.


*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 NUMCV, internal->external for field LEDNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_FMEP-LEDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEP-LEDNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMEP-KBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMEP-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_FMEP_STR, 
MANDT TYPE STRING,
LEDNR TYPE STRING,
OBJNR TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,
GEBER TYPE STRING,
WRTTP TYPE STRING,
VORGA TYPE STRING,
POSIT TYPE STRING,
TWAER TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
OBJNRZ TYPE STRING,
VGZEI TYPE STRING,
KOZEI TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
VALUT TYPE STRING,
LDBTR TYPE STRING,
TRBTR TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
MWSKZ TYPE STRING,
XSKRL TYPE STRING,
ZAPOS TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ZEKKN TYPE STRING,
KOZFI TYPE STRING,
ZFBDT TYPE STRING,
ETENR TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
UMBKZ TYPE STRING,
HI_FIVOR TYPE STRING,
LO_FIVOR TYPE STRING,
VRGNG TYPE STRING,
ZHLDT TYPE STRING,
HI_ACCOUNT TYPE STRING,
LO_ACCOUNT TYPE STRING,
HI_LIFNR TYPE STRING,
LO_LIFNR TYPE STRING,
HI_KUNNR TYPE STRING,
LO_KUNNR TYPE STRING,
LDBTRO TYPE STRING,
TRBTRO TYPE STRING,
HI_XOPVW TYPE STRING,
LO_XOPVW TYPE STRING,
CPUTM TYPE STRING,
XDELETE TYPE STRING,
CHAINBELNR TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMEP_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_FMEP_STR-MANDT sy-vline 
WA_FMEP_STR-LEDNR sy-vline 
WA_FMEP_STR-OBJNR sy-vline 
WA_FMEP_STR-GJAHR sy-vline 
WA_FMEP_STR-PERIO sy-vline 
WA_FMEP_STR-GEBER sy-vline 
WA_FMEP_STR-WRTTP sy-vline 
WA_FMEP_STR-VORGA sy-vline 
WA_FMEP_STR-POSIT sy-vline 
WA_FMEP_STR-TWAER sy-vline 
WA_FMEP_STR-BUKRS sy-vline 
WA_FMEP_STR-GSBER sy-vline 
WA_FMEP_STR-OBJNRZ sy-vline 
WA_FMEP_STR-VGZEI sy-vline 
WA_FMEP_STR-KOZEI sy-vline 
WA_FMEP_STR-BLART sy-vline 
WA_FMEP_STR-BLDAT sy-vline 
WA_FMEP_STR-BUDAT sy-vline 
WA_FMEP_STR-CPUDT sy-vline 
WA_FMEP_STR-VALUT sy-vline 
WA_FMEP_STR-LDBTR sy-vline 
WA_FMEP_STR-TRBTR sy-vline 
WA_FMEP_STR-KUNNR sy-vline 
WA_FMEP_STR-LIFNR sy-vline 
WA_FMEP_STR-MWSKZ sy-vline 
WA_FMEP_STR-XSKRL sy-vline 
WA_FMEP_STR-ZAPOS sy-vline 
WA_FMEP_STR-EBELN sy-vline 
WA_FMEP_STR-EBELP sy-vline 
WA_FMEP_STR-ZEKKN sy-vline 
WA_FMEP_STR-KOZFI sy-vline 
WA_FMEP_STR-ZFBDT sy-vline 
WA_FMEP_STR-ETENR sy-vline 
WA_FMEP_STR-STUNR sy-vline 
WA_FMEP_STR-ZAEHK sy-vline 
WA_FMEP_STR-UMBKZ sy-vline 
WA_FMEP_STR-HI_FIVOR sy-vline 
WA_FMEP_STR-LO_FIVOR sy-vline 
WA_FMEP_STR-VRGNG sy-vline 
WA_FMEP_STR-ZHLDT sy-vline 
WA_FMEP_STR-HI_ACCOUNT sy-vline 
WA_FMEP_STR-LO_ACCOUNT sy-vline 
WA_FMEP_STR-HI_LIFNR sy-vline 
WA_FMEP_STR-LO_LIFNR sy-vline 
WA_FMEP_STR-HI_KUNNR sy-vline 
WA_FMEP_STR-LO_KUNNR sy-vline 
WA_FMEP_STR-LDBTRO sy-vline 
WA_FMEP_STR-TRBTRO sy-vline 
WA_FMEP_STR-HI_XOPVW sy-vline 
WA_FMEP_STR-LO_XOPVW sy-vline 
WA_FMEP_STR-CPUTM sy-vline 
WA_FMEP_STR-XDELETE sy-vline 
WA_FMEP_STR-CHAINBELNR sy-vline 
WA_FMEP_STR-KBLNR sy-vline 
WA_FMEP_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.