ABAP Select data from SAP table MCCSHR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCCSHR
*  INTO TABLE @DATA(IT_MCCSHR2).
*--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_MCCSHR INDEX 1 INTO DATA(WA_MCCSHR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCCSHR>-MANDT = 1.
<MCCSHR>-WERKS = 1.
<MCCSHR>-KSKRS = 1.
<MCCSHR>-KASNR = 1.
<MCCSHR>-BUDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCCSHR-EZEIT, sy-vline,
  WA_MCCSHR-KBDNR, sy-vline,
  WA_MCCSHR-ZMTTL, sy-vline,
  WA_MCCSHR-WAERK, sy-vline,
  WA_MCCSHR-MEINS, sy-vline,
  WA_MCCSHR-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCCSHR 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_MCCSHR 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_MCCSHR INTO WA_MCCSHR.


*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 MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MCCSHR-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCCSHR-MEINS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field FILNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCCSHR-FILNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCCSHR-FILNR.
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_MCCSHR_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
KSKRS TYPE STRING,
KASNR TYPE STRING,
BUDAT TYPE STRING,
EZEIT TYPE STRING,
KBDNR TYPE STRING,
ZMTTL TYPE STRING,
WAERK TYPE STRING,
MEINS TYPE STRING,
BUKRS TYPE STRING,
SUPKZ TYPE STRING,
HWAER TYPE STRING,
KURSK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
VKGRP TYPE STRING,
BZIRK TYPE STRING,
FILNR TYPE STRING,
KKENN TYPE STRING,
KASNAM TYPE STRING,
AZABS TYPE STRING,
UMABS TYPE STRING,
KBSOL TYPE STRING,
KBIST TYPE STRING,
KDPOS TYPE STRING,
KDNEG TYPE STRING,
AZSUL TYPE STRING,
WRSUL TYPE STRING,
AZSST TYPE STRING,
WRSST TYPE STRING,
AZZST TYPE STRING,
WRZST TYPE STRING,
AZBST TYPE STRING,
WRBST TYPE STRING,
AZABB TYPE STRING,
WRABB TYPE STRING,
AMDZT TYPE STRING,
REGZT TYPE STRING,
AZBRT TYPE STRING,
WRUMS TYPE STRING,
WRSCA TYPE STRING,
AZSCA TYPE STRING,
WRWGV TYPE STRING,
AZWGV TYPE STRING,
AZKSB TYPE STRING,
AZFAV TYPE STRING,
AZBON TYPE STRING,
KSCHL TYPE STRING,
KVORG TYPE STRING,
AZPOS TYPE STRING,
ANZCOND TYPE STRING,
PRSNLS TYPE STRING,
PDIFF TYPE STRING,
UMSGVO TYPE STRING,
BNKUMS TYPE STRING,
MWSKZ TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCCSHR_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_MCCSHR_STR-MANDT sy-vline 
WA_MCCSHR_STR-WERKS sy-vline 
WA_MCCSHR_STR-KSKRS sy-vline 
WA_MCCSHR_STR-KASNR sy-vline 
WA_MCCSHR_STR-BUDAT sy-vline 
WA_MCCSHR_STR-EZEIT sy-vline 
WA_MCCSHR_STR-KBDNR sy-vline 
WA_MCCSHR_STR-ZMTTL sy-vline 
WA_MCCSHR_STR-WAERK sy-vline 
WA_MCCSHR_STR-MEINS sy-vline 
WA_MCCSHR_STR-BUKRS sy-vline 
WA_MCCSHR_STR-SUPKZ sy-vline 
WA_MCCSHR_STR-HWAER sy-vline 
WA_MCCSHR_STR-KURSK sy-vline 
WA_MCCSHR_STR-VKORG sy-vline 
WA_MCCSHR_STR-VTWEG sy-vline 
WA_MCCSHR_STR-VKGRP sy-vline 
WA_MCCSHR_STR-BZIRK sy-vline 
WA_MCCSHR_STR-FILNR sy-vline 
WA_MCCSHR_STR-KKENN sy-vline 
WA_MCCSHR_STR-KASNAM sy-vline 
WA_MCCSHR_STR-AZABS sy-vline 
WA_MCCSHR_STR-UMABS sy-vline 
WA_MCCSHR_STR-KBSOL sy-vline 
WA_MCCSHR_STR-KBIST sy-vline 
WA_MCCSHR_STR-KDPOS sy-vline 
WA_MCCSHR_STR-KDNEG sy-vline 
WA_MCCSHR_STR-AZSUL sy-vline 
WA_MCCSHR_STR-WRSUL sy-vline 
WA_MCCSHR_STR-AZSST sy-vline 
WA_MCCSHR_STR-WRSST sy-vline 
WA_MCCSHR_STR-AZZST sy-vline 
WA_MCCSHR_STR-WRZST sy-vline 
WA_MCCSHR_STR-AZBST sy-vline 
WA_MCCSHR_STR-WRBST sy-vline 
WA_MCCSHR_STR-AZABB sy-vline 
WA_MCCSHR_STR-WRABB sy-vline 
WA_MCCSHR_STR-AMDZT sy-vline 
WA_MCCSHR_STR-REGZT sy-vline 
WA_MCCSHR_STR-AZBRT sy-vline 
WA_MCCSHR_STR-WRUMS sy-vline 
WA_MCCSHR_STR-WRSCA sy-vline 
WA_MCCSHR_STR-AZSCA sy-vline 
WA_MCCSHR_STR-WRWGV sy-vline 
WA_MCCSHR_STR-AZWGV sy-vline 
WA_MCCSHR_STR-AZKSB sy-vline 
WA_MCCSHR_STR-AZFAV sy-vline 
WA_MCCSHR_STR-AZBON sy-vline 
WA_MCCSHR_STR-KSCHL sy-vline 
WA_MCCSHR_STR-KVORG sy-vline 
WA_MCCSHR_STR-AZPOS sy-vline 
WA_MCCSHR_STR-ANZCOND sy-vline 
WA_MCCSHR_STR-PRSNLS sy-vline 
WA_MCCSHR_STR-PDIFF sy-vline 
WA_MCCSHR_STR-UMSGVO sy-vline 
WA_MCCSHR_STR-BNKUMS sy-vline 
WA_MCCSHR_STR-MWSKZ sy-vline 
WA_MCCSHR_STR-DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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