ABAP Select data from SAP table MC02M_0SRV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MC02M_0SRV 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 MC02M_0SRV. 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 MC02M_0SRV 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_MC02M_0SRV TYPE STANDARD TABLE OF MC02M_0SRV,
      WA_MC02M_0SRV TYPE MC02M_0SRV,
      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: <MC02M_0SRV> TYPE MC02M_0SRV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC02M_0SRV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC02M_0SRV
  INTO TABLE IT_MC02M_0SRV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC02M_0SRV
*  INTO TABLE @DATA(IT_MC02M_0SRV2).
*--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_MC02M_0SRV INDEX 1 INTO DATA(WA_MC02M_0SRV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC02M_0SRV ASSIGNING <MC02M_0SRV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC02M_0SRV>-ROCANCEL = 1.
<MC02M_0SRV>-EBELN = 1.
<MC02M_0SRV>-BSTYP = 1.
<MC02M_0SRV>-BSART = 1.
<MC02M_0SRV>-LIFNR = 1.

ENDLOOP.

LOOP AT IT_MC02M_0SRV INTO WA_MC02M_0SRV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC02M_0SRV-EKORG, sy-vline,
  WA_MC02M_0SRV-EKGRP, sy-vline,
  WA_MC02M_0SRV-WAERS, sy-vline,
  WA_MC02M_0SRV-WKURS, sy-vline,
  WA_MC02M_0SRV-BEDAT, sy-vline,
  WA_MC02M_0SRV-LLIEF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC02M_0SRV 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_MC02M_0SRV 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_MC02M_0SRV INTO WA_MC02M_0SRV.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field WKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-WKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-WKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LLIEF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-LLIEF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-LLIEF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-LIFRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-LIFRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGLOGSY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-ORGLOGSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-ORGLOGSY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-LOGSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-LOGSY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-KONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SRVPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-SRVPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-SRVPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UCEBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-UCEBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-UCEBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LBLNI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_0SRV-LBLNI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_0SRV-LBLNI.
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_MC02M_0SRV_STR, 
ROCANCEL TYPE STRING,
EBELN TYPE STRING,
BSTYP TYPE STRING,
BSART TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
WAERS TYPE STRING,
WKURS TYPE STRING,
BEDAT TYPE STRING,
LLIEF TYPE STRING,
LIFRE TYPE STRING,
HWAER TYPE STRING,
SYDAT TYPE STRING,
ORGLOGSY TYPE STRING,
LOGSY TYPE STRING,
STATU TYPE STRING,
KDATB TYPE STRING,
KDATE TYPE STRING,
EBELP TYPE STRING,
WERKS TYPE STRING,
MATKL TYPE STRING,
ELIKZ TYPE STRING,
EREKZ TYPE STRING,
PSTYP TYPE STRING,
KONNR TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
KTPNR TYPE STRING,
AFNAM TYPE STRING,
TXZ01 TYPE STRING,
BWAPPLNM TYPE STRING,
BSGRU TYPE STRING,
BWVORG TYPE STRING,
SRVPOS TYPE STRING,
STLVPOS TYPE STRING,
EXTSRVNO TYPE STRING,
ASTYP TYPE STRING,
QUAN TYPE STRING,
VAL TYPE STRING,
MEINS TYPE STRING,
MWSKZ TYPE STRING,
PLANS TYPE STRING,
UNPLANED TYPE STRING,
CONTRACT TYPE STRING,
SRV_QUAN_E TYPE STRING,
SRV_QUAN_A TYPE STRING,
SRV_VAL_E TYPE STRING,
SRV_VAL_A TYPE STRING,
SUMLIMIT TYPE STRING,
SUMNOLIM TYPE STRING,
COMMITMENT TYPE STRING,
ACTVALUE TYPE STRING,
UCEBELN TYPE STRING,
UCEBELP TYPE STRING,
LIMIT TYPE STRING,
NOLIMIT TYPE STRING,
UCACTVALUE TYPE STRING,
KTEXT1 TYPE STRING,
LBLNI TYPE STRING,
ERDAT TYPE STRING,
AEDAT TYPE STRING,
LZVON TYPE STRING,
LZBIS TYPE STRING,
LWERT TYPE STRING,
UWERT TYPE STRING,
UNPLV TYPE STRING,
KZABN TYPE STRING,
FINAL TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
NETWR TYPE STRING,
LEMIN TYPE STRING,
TXZ01_ESSR TYPE STRING,
NOHDR TYPE STRING,
NOPOS TYPE STRING,
NOSRV TYPE STRING,
PERIV TYPE STRING,
UZEIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC02M_0SRV_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_MC02M_0SRV_STR-ROCANCEL sy-vline 
WA_MC02M_0SRV_STR-EBELN sy-vline 
WA_MC02M_0SRV_STR-BSTYP sy-vline 
WA_MC02M_0SRV_STR-BSART sy-vline 
WA_MC02M_0SRV_STR-LIFNR sy-vline 
WA_MC02M_0SRV_STR-EKORG sy-vline 
WA_MC02M_0SRV_STR-EKGRP sy-vline 
WA_MC02M_0SRV_STR-WAERS sy-vline 
WA_MC02M_0SRV_STR-WKURS sy-vline 
WA_MC02M_0SRV_STR-BEDAT sy-vline 
WA_MC02M_0SRV_STR-LLIEF sy-vline 
WA_MC02M_0SRV_STR-LIFRE sy-vline 
WA_MC02M_0SRV_STR-HWAER sy-vline 
WA_MC02M_0SRV_STR-SYDAT sy-vline 
WA_MC02M_0SRV_STR-ORGLOGSY sy-vline 
WA_MC02M_0SRV_STR-LOGSY sy-vline 
WA_MC02M_0SRV_STR-STATU sy-vline 
WA_MC02M_0SRV_STR-KDATB sy-vline 
WA_MC02M_0SRV_STR-KDATE sy-vline 
WA_MC02M_0SRV_STR-EBELP sy-vline 
WA_MC02M_0SRV_STR-WERKS sy-vline 
WA_MC02M_0SRV_STR-MATKL sy-vline 
WA_MC02M_0SRV_STR-ELIKZ sy-vline 
WA_MC02M_0SRV_STR-EREKZ sy-vline 
WA_MC02M_0SRV_STR-PSTYP sy-vline 
WA_MC02M_0SRV_STR-KONNR sy-vline 
WA_MC02M_0SRV_STR-NETPR sy-vline 
WA_MC02M_0SRV_STR-PEINH sy-vline 
WA_MC02M_0SRV_STR-KTPNR sy-vline 
WA_MC02M_0SRV_STR-AFNAM sy-vline 
WA_MC02M_0SRV_STR-TXZ01 sy-vline 
WA_MC02M_0SRV_STR-BWAPPLNM sy-vline 
WA_MC02M_0SRV_STR-BSGRU sy-vline 
WA_MC02M_0SRV_STR-BWVORG sy-vline 
WA_MC02M_0SRV_STR-SRVPOS sy-vline 
WA_MC02M_0SRV_STR-STLVPOS sy-vline 
WA_MC02M_0SRV_STR-EXTSRVNO sy-vline 
WA_MC02M_0SRV_STR-ASTYP sy-vline 
WA_MC02M_0SRV_STR-QUAN sy-vline 
WA_MC02M_0SRV_STR-VAL sy-vline 
WA_MC02M_0SRV_STR-MEINS sy-vline 
WA_MC02M_0SRV_STR-MWSKZ sy-vline 
WA_MC02M_0SRV_STR-PLANS sy-vline 
WA_MC02M_0SRV_STR-UNPLANED sy-vline 
WA_MC02M_0SRV_STR-CONTRACT sy-vline 
WA_MC02M_0SRV_STR-SRV_QUAN_E sy-vline 
WA_MC02M_0SRV_STR-SRV_QUAN_A sy-vline 
WA_MC02M_0SRV_STR-SRV_VAL_E sy-vline 
WA_MC02M_0SRV_STR-SRV_VAL_A sy-vline 
WA_MC02M_0SRV_STR-SUMLIMIT sy-vline 
WA_MC02M_0SRV_STR-SUMNOLIM sy-vline 
WA_MC02M_0SRV_STR-COMMITMENT sy-vline 
WA_MC02M_0SRV_STR-ACTVALUE sy-vline 
WA_MC02M_0SRV_STR-UCEBELN sy-vline 
WA_MC02M_0SRV_STR-UCEBELP sy-vline 
WA_MC02M_0SRV_STR-LIMIT sy-vline 
WA_MC02M_0SRV_STR-NOLIMIT sy-vline 
WA_MC02M_0SRV_STR-UCACTVALUE sy-vline 
WA_MC02M_0SRV_STR-KTEXT1 sy-vline 
WA_MC02M_0SRV_STR-LBLNI sy-vline 
WA_MC02M_0SRV_STR-ERDAT sy-vline 
WA_MC02M_0SRV_STR-AEDAT sy-vline 
WA_MC02M_0SRV_STR-LZVON sy-vline 
WA_MC02M_0SRV_STR-LZBIS sy-vline 
WA_MC02M_0SRV_STR-LWERT sy-vline 
WA_MC02M_0SRV_STR-UWERT sy-vline 
WA_MC02M_0SRV_STR-UNPLV sy-vline 
WA_MC02M_0SRV_STR-KZABN sy-vline 
WA_MC02M_0SRV_STR-FINAL sy-vline 
WA_MC02M_0SRV_STR-BLDAT sy-vline 
WA_MC02M_0SRV_STR-BUDAT sy-vline 
WA_MC02M_0SRV_STR-NETWR sy-vline 
WA_MC02M_0SRV_STR-LEMIN sy-vline 
WA_MC02M_0SRV_STR-TXZ01_ESSR sy-vline 
WA_MC02M_0SRV_STR-NOHDR sy-vline 
WA_MC02M_0SRV_STR-NOPOS sy-vline 
WA_MC02M_0SRV_STR-NOSRV sy-vline 
WA_MC02M_0SRV_STR-PERIV sy-vline 
WA_MC02M_0SRV_STR-UZEIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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