ABAP Select data from SAP table MHND_DOC_MASTER into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MHND_DOC_MASTER 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_DOC_MASTER. 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_DOC_MASTER 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_DOC_MASTER TYPE STANDARD TABLE OF MHND_DOC_MASTER,
      WA_MHND_DOC_MASTER TYPE MHND_DOC_MASTER,
      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_DOC_MASTER> TYPE MHND_DOC_MASTER.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MHND_DOC_MASTER
*  INTO TABLE @DATA(IT_MHND_DOC_MASTER2).
*--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_DOC_MASTER INDEX 1 INTO DATA(WA_MHND_DOC_MASTER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MHND_DOC_MASTER>-MANDT = 1.
<MHND_DOC_MASTER>-KOART = 1.
<MHND_DOC_MASTER>-KUNNR = 1.
<MHND_DOC_MASTER>-LIFNR = 1.
<MHND_DOC_MASTER>-SKNRZE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MHND_DOC_MASTER-DUNN_BUKRS, sy-vline,
  WA_MHND_DOC_MASTER-BBUKRS, sy-vline,
  WA_MHND_DOC_MASTER-SMABER, sy-vline,
  WA_MHND_DOC_MASTER-SMAHSK, sy-vline,
  WA_MHND_DOC_MASTER-BELNR, sy-vline,
  WA_MHND_DOC_MASTER-GJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MHND_DOC_MASTER 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_DOC_MASTER 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_DOC_MASTER INTO WA_MHND_DOC_MASTER.


*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_DOC_MASTER-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND_DOC_MASTER-KUNNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KNRMA_KNB5
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MHND_DOC_MASTER-KNRMA_KNB5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND_DOC_MASTER-KNRMA_KNB5.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_MHND_DOC_MASTER-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND_DOC_MASTER-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_MHND_DOC_MASTER-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MHND_DOC_MASTER-WRBTR.
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_DOC_MASTER_STR, 
MANDT TYPE STRING,
KOART TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
SKNRZE TYPE STRING,
DUNN_BUKRS TYPE STRING,
BBUKRS TYPE STRING,
SMABER TYPE STRING,
SMAHSK TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
BKOART TYPE STRING,
UMSKZ TYPE STRING,
UMSKS 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,
XFAEL TYPE STRING,
VERZN TYPE STRING,
REBZG TYPE STRING,
REBZJ TYPE STRING,
REBZZ TYPE STRING,
BLART TYPE STRING,
BSCHL TYPE STRING,
MSCHL TYPE STRING,
SMSCHL TYPE STRING,
MANSP TYPE STRING,
MABER TYPE STRING,
MADAT TYPE STRING,
MADAT_KNB5 TYPE STRING,
MAHNS TYPE STRING,
MAHNN TYPE STRING,
KNRMA_KNB5 TYPE STRING,
ZLSPR TYPE STRING,
SHKZG TYPE STRING,
WAERS TYPE STRING,
DMSHB TYPE STRING,
WRSHB TYPE STRING,
FILKD TYPE STRING,
ZLSCH TYPE STRING,
MGRUP TYPE STRING,
KMANSP TYPE STRING,
GMVDT TYPE STRING,
DMBTR TYPE STRING,
WRBTR TYPE STRING,
MANST TYPE STRING,
XCPDK TYPE STRING,
XVERR_KNB1 TYPE STRING,
VZSKZ TYPE STRING,
XDIRECT_DEBIT TYPE STRING,
ZAHLS_KNB1 TYPE STRING,
MAHNA TYPE STRING,
BUSAB TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
STRAS TYPE STRING,
PFACH TYPE STRING,
LAND1 TYPE STRING,
XZALB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MHND_DOC_MASTER_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_DOC_MASTER_STR-MANDT sy-vline 
WA_MHND_DOC_MASTER_STR-KOART sy-vline 
WA_MHND_DOC_MASTER_STR-KUNNR sy-vline 
WA_MHND_DOC_MASTER_STR-LIFNR sy-vline 
WA_MHND_DOC_MASTER_STR-SKNRZE sy-vline 
WA_MHND_DOC_MASTER_STR-DUNN_BUKRS sy-vline 
WA_MHND_DOC_MASTER_STR-BBUKRS sy-vline 
WA_MHND_DOC_MASTER_STR-SMABER sy-vline 
WA_MHND_DOC_MASTER_STR-SMAHSK sy-vline 
WA_MHND_DOC_MASTER_STR-BELNR sy-vline 
WA_MHND_DOC_MASTER_STR-GJAHR sy-vline 
WA_MHND_DOC_MASTER_STR-BUZEI sy-vline 
WA_MHND_DOC_MASTER_STR-BKOART sy-vline 
WA_MHND_DOC_MASTER_STR-UMSKZ sy-vline 
WA_MHND_DOC_MASTER_STR-UMSKS sy-vline 
WA_MHND_DOC_MASTER_STR-GSBER sy-vline 
WA_MHND_DOC_MASTER_STR-XBLNR sy-vline 
WA_MHND_DOC_MASTER_STR-ZUONR sy-vline 
WA_MHND_DOC_MASTER_STR-BUDAT sy-vline 
WA_MHND_DOC_MASTER_STR-BLDAT sy-vline 
WA_MHND_DOC_MASTER_STR-CPUDT sy-vline 
WA_MHND_DOC_MASTER_STR-ZFBDT sy-vline 
WA_MHND_DOC_MASTER_STR-FAEDT sy-vline 
WA_MHND_DOC_MASTER_STR-XFAEL sy-vline 
WA_MHND_DOC_MASTER_STR-VERZN sy-vline 
WA_MHND_DOC_MASTER_STR-REBZG sy-vline 
WA_MHND_DOC_MASTER_STR-REBZJ sy-vline 
WA_MHND_DOC_MASTER_STR-REBZZ sy-vline 
WA_MHND_DOC_MASTER_STR-BLART sy-vline 
WA_MHND_DOC_MASTER_STR-BSCHL sy-vline 
WA_MHND_DOC_MASTER_STR-MSCHL sy-vline 
WA_MHND_DOC_MASTER_STR-SMSCHL sy-vline 
WA_MHND_DOC_MASTER_STR-MANSP sy-vline 
WA_MHND_DOC_MASTER_STR-MABER sy-vline 
WA_MHND_DOC_MASTER_STR-MADAT sy-vline 
WA_MHND_DOC_MASTER_STR-MADAT_KNB5 sy-vline 
WA_MHND_DOC_MASTER_STR-MAHNS sy-vline 
WA_MHND_DOC_MASTER_STR-MAHNN sy-vline 
WA_MHND_DOC_MASTER_STR-KNRMA_KNB5 sy-vline 
WA_MHND_DOC_MASTER_STR-ZLSPR sy-vline 
WA_MHND_DOC_MASTER_STR-SHKZG sy-vline 
WA_MHND_DOC_MASTER_STR-WAERS sy-vline 
WA_MHND_DOC_MASTER_STR-DMSHB sy-vline 
WA_MHND_DOC_MASTER_STR-WRSHB sy-vline 
WA_MHND_DOC_MASTER_STR-FILKD sy-vline 
WA_MHND_DOC_MASTER_STR-ZLSCH sy-vline 
WA_MHND_DOC_MASTER_STR-MGRUP sy-vline 
WA_MHND_DOC_MASTER_STR-KMANSP sy-vline 
WA_MHND_DOC_MASTER_STR-GMVDT sy-vline 
WA_MHND_DOC_MASTER_STR-DMBTR sy-vline 
WA_MHND_DOC_MASTER_STR-WRBTR sy-vline 
WA_MHND_DOC_MASTER_STR-MANST sy-vline 
WA_MHND_DOC_MASTER_STR-XCPDK sy-vline 
WA_MHND_DOC_MASTER_STR-XVERR_KNB1 sy-vline 
WA_MHND_DOC_MASTER_STR-VZSKZ sy-vline 
WA_MHND_DOC_MASTER_STR-XDIRECT_DEBIT sy-vline 
WA_MHND_DOC_MASTER_STR-ZAHLS_KNB1 sy-vline 
WA_MHND_DOC_MASTER_STR-MAHNA sy-vline 
WA_MHND_DOC_MASTER_STR-BUSAB sy-vline 
WA_MHND_DOC_MASTER_STR-PSTLZ sy-vline 
WA_MHND_DOC_MASTER_STR-ORT01 sy-vline 
WA_MHND_DOC_MASTER_STR-STRAS sy-vline 
WA_MHND_DOC_MASTER_STR-PFACH sy-vline 
WA_MHND_DOC_MASTER_STR-LAND1 sy-vline 
WA_MHND_DOC_MASTER_STR-XZALB sy-vline      INTO ld_text SEPARATED BY SPACE.

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