ABAP Select data from SAP table MHND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MHND
*  INTO TABLE @DATA(IT_MHND2).
*--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_MHND INDEX 1 INTO DATA(WA_MHND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MHND>-MANDT = 1.
<MHND>-LAUFD = 1.
<MHND>-LAUFI = 1.
<MHND>-KOART = 1.
<MHND>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MHND-KUNNR, sy-vline,
  WA_MHND-LIFNR, sy-vline,
  WA_MHND-CPDKY, sy-vline,
  WA_MHND-SKNRZE, sy-vline,
  WA_MHND-SMABER, sy-vline,
  WA_MHND-SMAHSK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MHND 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_MHND 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_MHND INTO WA_MHND.


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

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

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

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

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

*Conversion exit AC132, internal->external for field DMSHB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_MHND-DMSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND-DMSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WRSHB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_MHND-WRSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND-WRSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZSBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_MHND-ZSBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND-ZSBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field WZSBT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_MHND-WZSBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND-WZSBT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field BTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MHND-BTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND-BTYPE.
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_MHND_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
KOART TYPE STRING,
BUKRS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
CPDKY TYPE STRING,
SKNRZE TYPE STRING,
SMABER TYPE STRING,
SMAHSK TYPE STRING,
BBUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
GSBER TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
CPUDT TYPE STRING,
ZFBDT TYPE STRING,
FAEDT TYPE STRING,
BLART TYPE STRING,
BSCHL TYPE STRING,
MSCHL TYPE STRING,
SMSCHL TYPE STRING,
MANSP TYPE STRING,
MABER TYPE STRING,
MADAT TYPE STRING,
MAHNS TYPE STRING,
MAHNN TYPE STRING,
ZLSPR TYPE STRING,
XZALB TYPE STRING,
XFAEL TYPE STRING,
VERZN TYPE STRING,
UMSKS TYPE STRING,
UMSKZ TYPE STRING,
SHKZG TYPE STRING,
WAERS TYPE STRING,
DMSHB TYPE STRING,
WRSHB TYPE STRING,
ZINST TYPE STRING,
ZINSS TYPE STRING,
ZSBTR TYPE STRING,
WZSBT TYPE STRING,
FILKD TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
XZINS TYPE STRING,
REBZG TYPE STRING,
REBZJ TYPE STRING,
REBZZ TYPE STRING,
VERTN TYPE STRING,
VERTT TYPE STRING,
ZLSCH TYPE STRING,
BKOART TYPE STRING,
VNAME TYPE STRING,
EGRUP TYPE STRING,
BTYPE TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
ZINKZ TYPE STRING,
XREF3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MHND_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_MHND_STR-MANDT sy-vline 
WA_MHND_STR-LAUFD sy-vline 
WA_MHND_STR-LAUFI sy-vline 
WA_MHND_STR-KOART sy-vline 
WA_MHND_STR-BUKRS sy-vline 
WA_MHND_STR-KUNNR sy-vline 
WA_MHND_STR-LIFNR sy-vline 
WA_MHND_STR-CPDKY sy-vline 
WA_MHND_STR-SKNRZE sy-vline 
WA_MHND_STR-SMABER sy-vline 
WA_MHND_STR-SMAHSK sy-vline 
WA_MHND_STR-BBUKRS sy-vline 
WA_MHND_STR-BELNR sy-vline 
WA_MHND_STR-GJAHR sy-vline 
WA_MHND_STR-BUZEI sy-vline 
WA_MHND_STR-GSBER sy-vline 
WA_MHND_STR-XBLNR sy-vline 
WA_MHND_STR-ZUONR sy-vline 
WA_MHND_STR-BUDAT sy-vline 
WA_MHND_STR-BLDAT sy-vline 
WA_MHND_STR-CPUDT sy-vline 
WA_MHND_STR-ZFBDT sy-vline 
WA_MHND_STR-FAEDT sy-vline 
WA_MHND_STR-BLART sy-vline 
WA_MHND_STR-BSCHL sy-vline 
WA_MHND_STR-MSCHL sy-vline 
WA_MHND_STR-SMSCHL sy-vline 
WA_MHND_STR-MANSP sy-vline 
WA_MHND_STR-MABER sy-vline 
WA_MHND_STR-MADAT sy-vline 
WA_MHND_STR-MAHNS sy-vline 
WA_MHND_STR-MAHNN sy-vline 
WA_MHND_STR-ZLSPR sy-vline 
WA_MHND_STR-XZALB sy-vline 
WA_MHND_STR-XFAEL sy-vline 
WA_MHND_STR-VERZN sy-vline 
WA_MHND_STR-UMSKS sy-vline 
WA_MHND_STR-UMSKZ sy-vline 
WA_MHND_STR-SHKZG sy-vline 
WA_MHND_STR-WAERS sy-vline 
WA_MHND_STR-DMSHB sy-vline 
WA_MHND_STR-WRSHB sy-vline 
WA_MHND_STR-ZINST sy-vline 
WA_MHND_STR-ZINSS sy-vline 
WA_MHND_STR-ZSBTR sy-vline 
WA_MHND_STR-WZSBT sy-vline 
WA_MHND_STR-FILKD sy-vline 
WA_MHND_STR-VKORG sy-vline 
WA_MHND_STR-VTWEG sy-vline 
WA_MHND_STR-SPART sy-vline 
WA_MHND_STR-XZINS sy-vline 
WA_MHND_STR-REBZG sy-vline 
WA_MHND_STR-REBZJ sy-vline 
WA_MHND_STR-REBZZ sy-vline 
WA_MHND_STR-VERTN sy-vline 
WA_MHND_STR-VERTT sy-vline 
WA_MHND_STR-ZLSCH sy-vline 
WA_MHND_STR-BKOART sy-vline 
WA_MHND_STR-VNAME sy-vline 
WA_MHND_STR-EGRUP sy-vline 
WA_MHND_STR-BTYPE sy-vline 
WA_MHND_STR-XREF1 sy-vline 
WA_MHND_STR-XREF2 sy-vline 
WA_MHND_STR-ZINKZ sy-vline 
WA_MHND_STR-XREF3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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