ABAP Select data from SAP table MMIM_MATDOC_STY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MMIM_MATDOC_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 MMIM_MATDOC_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 MMIM_MATDOC_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_MMIM_MATDOC_STY TYPE STANDARD TABLE OF MMIM_MATDOC_STY,
      WA_MMIM_MATDOC_STY TYPE MMIM_MATDOC_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: <MMIM_MATDOC_STY> TYPE MMIM_MATDOC_STY.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMIM_MATDOC_STY
*  INTO TABLE @DATA(IT_MMIM_MATDOC_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_MMIM_MATDOC_STY INDEX 1 INTO DATA(WA_MMIM_MATDOC_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMIM_MATDOC_STY>-MBLNR = 1.
<MMIM_MATDOC_STY>-MJAHR = 1.
<MMIM_MATDOC_STY>-BLDAT = 1.
<MMIM_MATDOC_STY>-BUDAT = 1.
<MMIM_MATDOC_STY>-USNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMIM_MATDOC_STY-XBLNR, sy-vline,
  WA_MMIM_MATDOC_STY-FRBNR, sy-vline,
  WA_MMIM_MATDOC_STY-LIFNR, sy-vline,
  WA_MMIM_MATDOC_STY-ERFMG, sy-vline,
  WA_MMIM_MATDOC_STY-ERFME, sy-vline,
  WA_MMIM_MATDOC_STY-MENGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMIM_MATDOC_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_MMIM_MATDOC_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_MMIM_MATDOC_STY INTO WA_MMIM_MATDOC_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 ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIM_MATDOC_STY-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIM_MATDOC_STY-MBLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field MAT_PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MMIM_MATDOC_STY-MAT_PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIM_MATDOC_STY-MAT_PSPNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOG_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIM_MATDOC_STY-LOG_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIM_MATDOC_STY-LOG_SYS.
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_MMIM_MATDOC_STY_STR, 
MBLNR TYPE STRING,
MJAHR TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
USNAM TYPE STRING,
XBLNR TYPE STRING,
FRBNR TYPE STRING,
LIFNR TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
WERKS TYPE STRING,
NAME1 TYPE STRING,
LGORT TYPE STRING,
BWART TYPE STRING,
BTEXT TYPE STRING,
ZEILE TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
BUKRS TYPE STRING,
AUFNR TYPE STRING,
LE_VBELN TYPE STRING,
SOBKZ TYPE STRING,
SOTXT TYPE STRING,
MAT_KDAUF TYPE STRING,
MAT_KDPOS TYPE STRING,
MAT_PSPNR TYPE STRING,
SMBLN TYPE STRING,
SMBLP TYPE STRING,
SJAHR TYPE STRING,
LFBNR TYPE STRING,
LFBJA TYPE STRING,
LFPOS TYPE STRING,
SHKZG TYPE STRING,
TCODE2 TYPE STRING,
WERTX TYPE STRING,
BUTXT TYPE STRING,
KUNNR TYPE STRING,
LOG_SYS TYPE STRING,
UPDATE_PENDING TYPE STRING,
KZBEW TYPE STRING,
KZZUG TYPE STRING,
KZVBR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMIM_MATDOC_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_MMIM_MATDOC_STY_STR-MBLNR sy-vline 
WA_MMIM_MATDOC_STY_STR-MJAHR sy-vline 
WA_MMIM_MATDOC_STY_STR-BLDAT sy-vline 
WA_MMIM_MATDOC_STY_STR-BUDAT sy-vline 
WA_MMIM_MATDOC_STY_STR-USNAM sy-vline 
WA_MMIM_MATDOC_STY_STR-XBLNR sy-vline 
WA_MMIM_MATDOC_STY_STR-FRBNR sy-vline 
WA_MMIM_MATDOC_STY_STR-LIFNR sy-vline 
WA_MMIM_MATDOC_STY_STR-ERFMG sy-vline 
WA_MMIM_MATDOC_STY_STR-ERFME sy-vline 
WA_MMIM_MATDOC_STY_STR-MENGE sy-vline 
WA_MMIM_MATDOC_STY_STR-MEINS sy-vline 
WA_MMIM_MATDOC_STY_STR-MATNR sy-vline 
WA_MMIM_MATDOC_STY_STR-MAKTX sy-vline 
WA_MMIM_MATDOC_STY_STR-WERKS sy-vline 
WA_MMIM_MATDOC_STY_STR-NAME1 sy-vline 
WA_MMIM_MATDOC_STY_STR-LGORT sy-vline 
WA_MMIM_MATDOC_STY_STR-BWART sy-vline 
WA_MMIM_MATDOC_STY_STR-BTEXT sy-vline 
WA_MMIM_MATDOC_STY_STR-ZEILE sy-vline 
WA_MMIM_MATDOC_STY_STR-EBELN sy-vline 
WA_MMIM_MATDOC_STY_STR-EBELP sy-vline 
WA_MMIM_MATDOC_STY_STR-BUKRS sy-vline 
WA_MMIM_MATDOC_STY_STR-AUFNR sy-vline 
WA_MMIM_MATDOC_STY_STR-LE_VBELN sy-vline 
WA_MMIM_MATDOC_STY_STR-SOBKZ sy-vline 
WA_MMIM_MATDOC_STY_STR-SOTXT sy-vline 
WA_MMIM_MATDOC_STY_STR-MAT_KDAUF sy-vline 
WA_MMIM_MATDOC_STY_STR-MAT_KDPOS sy-vline 
WA_MMIM_MATDOC_STY_STR-MAT_PSPNR sy-vline 
WA_MMIM_MATDOC_STY_STR-SMBLN sy-vline 
WA_MMIM_MATDOC_STY_STR-SMBLP sy-vline 
WA_MMIM_MATDOC_STY_STR-SJAHR sy-vline 
WA_MMIM_MATDOC_STY_STR-LFBNR sy-vline 
WA_MMIM_MATDOC_STY_STR-LFBJA sy-vline 
WA_MMIM_MATDOC_STY_STR-LFPOS sy-vline 
WA_MMIM_MATDOC_STY_STR-SHKZG sy-vline 
WA_MMIM_MATDOC_STY_STR-TCODE2 sy-vline 
WA_MMIM_MATDOC_STY_STR-WERTX sy-vline 
WA_MMIM_MATDOC_STY_STR-BUTXT sy-vline 
WA_MMIM_MATDOC_STY_STR-KUNNR sy-vline 
WA_MMIM_MATDOC_STY_STR-LOG_SYS sy-vline 
WA_MMIM_MATDOC_STY_STR-UPDATE_PENDING sy-vline 
WA_MMIM_MATDOC_STY_STR-KZBEW sy-vline 
WA_MMIM_MATDOC_STY_STR-KZZUG sy-vline 
WA_MMIM_MATDOC_STY_STR-KZVBR sy-vline      INTO ld_text SEPARATED BY SPACE.

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