ABAP Select data from SAP table /KYK/ISS_ME1M into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /KYK/ISS_ME1M 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 /KYK/ISS_ME1M. 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 /KYK/ISS_ME1M 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_/KYK/ISS_ME1M TYPE STANDARD TABLE OF /KYK/ISS_ME1M,
      WA_/KYK/ISS_ME1M TYPE /KYK/ISS_ME1M,
      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: </KYK/ISS_ME1M> TYPE /KYK/ISS_ME1M.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/KYK/ISS_ME1M.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /KYK/ISS_ME1M
  INTO TABLE IT_/KYK/ISS_ME1M.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /KYK/ISS_ME1M
*  INTO TABLE @DATA(IT_/KYK/ISS_ME1M2).
*--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_/KYK/ISS_ME1M INDEX 1 INTO DATA(WA_/KYK/ISS_ME1M2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/KYK/ISS_ME1M ASSIGNING </KYK/ISS_ME1M>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</KYK/ISS_ME1M>-INFNR = 1.
</KYK/ISS_ME1M>-MATNR = 1.
</KYK/ISS_ME1M>-LOEKZ_EINA = 1.
</KYK/ISS_ME1M>-MATKL = 1.
</KYK/ISS_ME1M>-EKORG = 1.

ENDLOOP.

LOOP AT IT_/KYK/ISS_ME1M INTO WA_/KYK/ISS_ME1M.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/KYK/ISS_ME1M-LIFNR, sy-vline,
  WA_/KYK/ISS_ME1M-PTEXT, sy-vline,
  WA_/KYK/ISS_ME1M-RELIF, sy-vline,
  WA_/KYK/ISS_ME1M-WERKS, sy-vline,
  WA_/KYK/ISS_ME1M-EKGRP, sy-vline,
  WA_/KYK/ISS_ME1M-TXZ01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/KYK/ISS_ME1M 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_/KYK/ISS_ME1M 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_/KYK/ISS_ME1M INTO WA_/KYK/ISS_ME1M.


*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 INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME_EIPA
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-BPRME_EIPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-BPRME_EIPA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-ANFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-ANFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERKZ, internal->external for field IPRKZ
CALL FUNCTION 'CONVERSION_EXIT_PERKZ_OUTPUT'
  EXPORTING
    input =                      WA_/KYK/ISS_ME1M-IPRKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/KYK/ISS_ME1M-IPRKZ.
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_/KYK/ISS_ME1M_STR, 
INFNR TYPE STRING,
MATNR TYPE STRING,
LOEKZ_EINA TYPE STRING,
MATKL TYPE STRING,
EKORG TYPE STRING,
LIFNR TYPE STRING,
PTEXT TYPE STRING,
RELIF TYPE STRING,
WERKS TYPE STRING,
EKGRP TYPE STRING,
TXZ01 TYPE STRING,
APLFZ TYPE STRING,
SORTL TYPE STRING,
MINBM TYPE STRING,
MEINS TYPE STRING,
ESOKZ TYPE STRING,
VABME TYPE STRING,
MANDT TYPE STRING,
ERDAT TYPE STRING,
LOEKZ TYPE STRING,
ERNAM TYPE STRING,
BONUS TYPE STRING,
PREISH_KON TYPE STRING,
MGBON TYPE STRING,
NETPR TYPE STRING,
WAERS TYPE STRING,
NORBM TYPE STRING,
UEBTO TYPE STRING,
PEINH TYPE STRING,
UEBTK TYPE STRING,
BPRME TYPE STRING,
UNTTO TYPE STRING,
PREISB TYPE STRING,
ANGNR TYPE STRING,
PREISH TYPE STRING,
ANGDT TYPE STRING,
PREIS TYPE STRING,
ABSKZ TYPE STRING,
BWAER TYPE STRING,
AMODV TYPE STRING,
PEINH_EIPA TYPE STRING,
AMODB TYPE STRING,
BPRME_EIPA TYPE STRING,
AMOBM TYPE STRING,
BSTYP TYPE STRING,
AMOBW TYPE STRING,
EBELN TYPE STRING,
AMOAM TYPE STRING,
EBELP TYPE STRING,
AMOAW TYPE STRING,
DATLB TYPE STRING,
ANFNR TYPE STRING,
AMORS TYPE STRING,
ANFPS TYPE STRING,
PRDAT TYPE STRING,
BPUMZ TYPE STRING,
ANZPOS TYPE STRING,
BPUMN TYPE STRING,
MTXNO TYPE STRING,
WEBRE TYPE STRING,
EFFPR TYPE STRING,
EKKOL TYPE STRING,
SKTOF TYPE STRING,
KZABS TYPE STRING,
MWSKZ TYPE STRING,
BWTAR TYPE STRING,
EBONU TYPE STRING,
EVERS TYPE STRING,
EXPRF TYPE STRING,
BSTAE TYPE STRING,
MEPRF TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
XERSN TYPE STRING,
EBON2 TYPE STRING,
EBON3 TYPE STRING,
EBONF TYPE STRING,
MHDRZ TYPE STRING,
VERID TYPE STRING,
BSTMA TYPE STRING,
RDPRF TYPE STRING,
MEGRU TYPE STRING,
J_1BNBM TYPE STRING,
IPRKZ TYPE STRING,
SUPERFIELD_M TYPE STRING,
TEXT_L TYPE STRING,
TRANSPORT_CHAIN TYPE STRING,
STAGING_TIME TYPE STRING,
TABKZ TYPE STRING,
DATKZ TYPE STRING,
ERDKZ TYPE STRING,
EINAKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/KYK/ISS_ME1M_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_/KYK/ISS_ME1M_STR-INFNR sy-vline 
WA_/KYK/ISS_ME1M_STR-MATNR sy-vline 
WA_/KYK/ISS_ME1M_STR-LOEKZ_EINA sy-vline 
WA_/KYK/ISS_ME1M_STR-MATKL sy-vline 
WA_/KYK/ISS_ME1M_STR-EKORG sy-vline 
WA_/KYK/ISS_ME1M_STR-LIFNR sy-vline 
WA_/KYK/ISS_ME1M_STR-PTEXT sy-vline 
WA_/KYK/ISS_ME1M_STR-RELIF sy-vline 
WA_/KYK/ISS_ME1M_STR-WERKS sy-vline 
WA_/KYK/ISS_ME1M_STR-EKGRP sy-vline 
WA_/KYK/ISS_ME1M_STR-TXZ01 sy-vline 
WA_/KYK/ISS_ME1M_STR-APLFZ sy-vline 
WA_/KYK/ISS_ME1M_STR-SORTL sy-vline 
WA_/KYK/ISS_ME1M_STR-MINBM sy-vline 
WA_/KYK/ISS_ME1M_STR-MEINS sy-vline 
WA_/KYK/ISS_ME1M_STR-ESOKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-VABME sy-vline 
WA_/KYK/ISS_ME1M_STR-MANDT sy-vline 
WA_/KYK/ISS_ME1M_STR-ERDAT sy-vline 
WA_/KYK/ISS_ME1M_STR-LOEKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-ERNAM sy-vline 
WA_/KYK/ISS_ME1M_STR-BONUS sy-vline 
WA_/KYK/ISS_ME1M_STR-PREISH_KON sy-vline 
WA_/KYK/ISS_ME1M_STR-MGBON sy-vline 
WA_/KYK/ISS_ME1M_STR-NETPR sy-vline 
WA_/KYK/ISS_ME1M_STR-WAERS sy-vline 
WA_/KYK/ISS_ME1M_STR-NORBM sy-vline 
WA_/KYK/ISS_ME1M_STR-UEBTO sy-vline 
WA_/KYK/ISS_ME1M_STR-PEINH sy-vline 
WA_/KYK/ISS_ME1M_STR-UEBTK sy-vline 
WA_/KYK/ISS_ME1M_STR-BPRME sy-vline 
WA_/KYK/ISS_ME1M_STR-UNTTO sy-vline 
WA_/KYK/ISS_ME1M_STR-PREISB sy-vline 
WA_/KYK/ISS_ME1M_STR-ANGNR sy-vline 
WA_/KYK/ISS_ME1M_STR-PREISH sy-vline 
WA_/KYK/ISS_ME1M_STR-ANGDT sy-vline 
WA_/KYK/ISS_ME1M_STR-PREIS sy-vline 
WA_/KYK/ISS_ME1M_STR-ABSKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-BWAER sy-vline 
WA_/KYK/ISS_ME1M_STR-AMODV sy-vline 
WA_/KYK/ISS_ME1M_STR-PEINH_EIPA sy-vline 
WA_/KYK/ISS_ME1M_STR-AMODB sy-vline 
WA_/KYK/ISS_ME1M_STR-BPRME_EIPA sy-vline 
WA_/KYK/ISS_ME1M_STR-AMOBM sy-vline 
WA_/KYK/ISS_ME1M_STR-BSTYP sy-vline 
WA_/KYK/ISS_ME1M_STR-AMOBW sy-vline 
WA_/KYK/ISS_ME1M_STR-EBELN sy-vline 
WA_/KYK/ISS_ME1M_STR-AMOAM sy-vline 
WA_/KYK/ISS_ME1M_STR-EBELP sy-vline 
WA_/KYK/ISS_ME1M_STR-AMOAW sy-vline 
WA_/KYK/ISS_ME1M_STR-DATLB sy-vline 
WA_/KYK/ISS_ME1M_STR-ANFNR sy-vline 
WA_/KYK/ISS_ME1M_STR-AMORS sy-vline 
WA_/KYK/ISS_ME1M_STR-ANFPS sy-vline 
WA_/KYK/ISS_ME1M_STR-PRDAT sy-vline 
WA_/KYK/ISS_ME1M_STR-BPUMZ sy-vline 
WA_/KYK/ISS_ME1M_STR-ANZPOS sy-vline 
WA_/KYK/ISS_ME1M_STR-BPUMN sy-vline 
WA_/KYK/ISS_ME1M_STR-MTXNO sy-vline 
WA_/KYK/ISS_ME1M_STR-WEBRE sy-vline 
WA_/KYK/ISS_ME1M_STR-EFFPR sy-vline 
WA_/KYK/ISS_ME1M_STR-EKKOL sy-vline 
WA_/KYK/ISS_ME1M_STR-SKTOF sy-vline 
WA_/KYK/ISS_ME1M_STR-KZABS sy-vline 
WA_/KYK/ISS_ME1M_STR-MWSKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-BWTAR sy-vline 
WA_/KYK/ISS_ME1M_STR-EBONU sy-vline 
WA_/KYK/ISS_ME1M_STR-EVERS sy-vline 
WA_/KYK/ISS_ME1M_STR-EXPRF sy-vline 
WA_/KYK/ISS_ME1M_STR-BSTAE sy-vline 
WA_/KYK/ISS_ME1M_STR-MEPRF sy-vline 
WA_/KYK/ISS_ME1M_STR-INCO1 sy-vline 
WA_/KYK/ISS_ME1M_STR-INCO2 sy-vline 
WA_/KYK/ISS_ME1M_STR-XERSN sy-vline 
WA_/KYK/ISS_ME1M_STR-EBON2 sy-vline 
WA_/KYK/ISS_ME1M_STR-EBON3 sy-vline 
WA_/KYK/ISS_ME1M_STR-EBONF sy-vline 
WA_/KYK/ISS_ME1M_STR-MHDRZ sy-vline 
WA_/KYK/ISS_ME1M_STR-VERID sy-vline 
WA_/KYK/ISS_ME1M_STR-BSTMA sy-vline 
WA_/KYK/ISS_ME1M_STR-RDPRF sy-vline 
WA_/KYK/ISS_ME1M_STR-MEGRU sy-vline 
WA_/KYK/ISS_ME1M_STR-J_1BNBM sy-vline 
WA_/KYK/ISS_ME1M_STR-IPRKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-SUPERFIELD_M sy-vline 
WA_/KYK/ISS_ME1M_STR-TEXT_L sy-vline 
WA_/KYK/ISS_ME1M_STR-TRANSPORT_CHAIN sy-vline 
WA_/KYK/ISS_ME1M_STR-STAGING_TIME sy-vline 
WA_/KYK/ISS_ME1M_STR-TABKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-DATKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-ERDKZ sy-vline 
WA_/KYK/ISS_ME1M_STR-EINAKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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