ABAP Select data from SAP table MMSRV_VENDER_DATA_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMSRV_VENDER_DATA_STY
*  INTO TABLE @DATA(IT_MMSRV_VENDER_DATA_STY2).
*--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_MMSRV_VENDER_DATA_STY INDEX 1 INTO DATA(WA_MMSRV_VENDER_DATA_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMSRV_VENDER_DATA_STY>-KNUMH = 1.
<MMSRV_VENDER_DATA_STY>-KSCHL = 1.
<MMSRV_VENDER_DATA_STY>-KNUMT = 1.
<MMSRV_VENDER_DATA_STY>-KSTBM = 1.
<MMSRV_VENDER_DATA_STY>-KONMS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMSRV_VENDER_DATA_STY-KSTBW, sy-vline,
  WA_MMSRV_VENDER_DATA_STY-KONWS, sy-vline,
  WA_MMSRV_VENDER_DATA_STY-KBETR, sy-vline,
  WA_MMSRV_VENDER_DATA_STY-KONWA, sy-vline,
  WA_MMSRV_VENDER_DATA_STY-KPEIN, sy-vline,
  WA_MMSRV_VENDER_DATA_STY-KMEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMSRV_VENDER_DATA_STY 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_MMSRV_VENDER_DATA_STY 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_MMSRV_VENDER_DATA_STY INTO WA_MMSRV_VENDER_DATA_STY.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field CONTR_IN_HIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMSRV_VENDER_DATA_STY-CONTR_IN_HIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMSRV_VENDER_DATA_STY-CONTR_IN_HIER.
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_MMSRV_VENDER_DATA_STY_STR, 
KNUMH TYPE STRING,
KSCHL TYPE STRING,
KNUMT TYPE STRING,
KSTBM TYPE STRING,
KONMS TYPE STRING,
KSTBW TYPE STRING,
KONWS TYPE STRING,
KBETR TYPE STRING,
KONWA TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
MEINS TYPE STRING,
RSWRT TYPE STRING,
LIFNR TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
KAPPL TYPE STRING,
KDATU TYPE STRING,
KRECH TYPE STRING,
KAWRT TYPE STRING,
WAERS TYPE STRING,
KKURS TYPE STRING,
KOPOS TYPE STRING,
COND_TEXT TYPE STRING,
PRSDT TYPE STRING,
KTEXT TYPE STRING,
KWERT TYPE STRING,
PRMEN TYPE STRING,
PRFIX TYPE STRING,
NETWR TYPE STRING,
NETPR TYPE STRING,
WAERK TYPE STRING,
PRBES TYPE STRING,
OBCFD TYPE STRING,
AZPOS TYPE STRING,
WERKS TYPE STRING,
ICON_PRBES TYPE STRING,
EKORG TYPE STRING,
INFNR TYPE STRING,
ESOKZ TYPE STRING,
PTEXT TYPE STRING,
KALSM TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
BSTYP TYPE STRING,
BSTME TYPE STRING,
MATNR TYPE STRING,
MATKL TYPE STRING,
HETWR TYPE STRING,
HETPR TYPE STRING,
WAERH TYPE STRING,
MGAME TYPE STRING,
BPRME TYPE STRING,
WKURS TYPE STRING,
SIDAT TYPE STRING,
KBETRC TYPE STRING,
KWERTC TYPE STRING,
CONTR_IN_HIER TYPE STRING,
AGG_REL_VALUE TYPE STRING,
SRM_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMSRV_VENDER_DATA_STY_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_MMSRV_VENDER_DATA_STY_STR-KNUMH sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KSCHL sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KNUMT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KSTBM sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KONMS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KSTBW sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KONWS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KBETR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KONWA sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KPEIN sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KMEIN sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-MEINS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-RSWRT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-LIFNR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KNUMV sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KPOSN sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-STUNR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-ZAEHK sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KAPPL sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KDATU sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KRECH sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KAWRT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-WAERS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KKURS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KOPOS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-COND_TEXT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-PRSDT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KTEXT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KWERT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-PRMEN sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-PRFIX sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-NETWR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-NETPR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-WAERK sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-PRBES sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-OBCFD sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-AZPOS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-WERKS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-ICON_PRBES sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-EKORG sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-INFNR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-ESOKZ sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-PTEXT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KALSM sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-EBELN sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-EBELP sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-BSTYP sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-BSTME sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-MATNR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-MATKL sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-HETWR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-HETPR sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-WAERH sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-MGAME sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-BPRME sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-WKURS sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-SIDAT sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KBETRC sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-KWERTC sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-CONTR_IN_HIER sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-AGG_REL_VALUE sy-vline 
WA_MMSRV_VENDER_DATA_STY_STR-SRM_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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