ABAP Select data from SAP table MCCASH into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCCASH
*  INTO TABLE @DATA(IT_MCCASH2).
*--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_MCCASH INDEX 1 INTO DATA(WA_MCCASH2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCCASH-BONNR, sy-vline,
  WA_MCCASH-KUNNR, sy-vline,
  WA_MCCASH-EZEIT, sy-vline,
  WA_MCCASH-KBDNR, sy-vline,
  WA_MCCASH-ZMTTL, sy-vline,
  WA_MCCASH-WAERK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCCASH 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_MCCASH 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_MCCASH INTO WA_MCCASH.


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

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

*Conversion exit ALPHA, internal->external for field FILNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MCCASH-FILNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCCASH-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_MCCASH_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
KSKRS TYPE STRING,
KASNR TYPE STRING,
BUDAT TYPE STRING,
BONNR TYPE STRING,
KUNNR TYPE STRING,
EZEIT TYPE STRING,
KBDNR TYPE STRING,
ZMTTL TYPE STRING,
WAERK TYPE STRING,
BUKRS TYPE STRING,
SUPKZ TYPE STRING,
HWAER TYPE STRING,
KURSK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
BZIRK TYPE STRING,
AZPOS TYPE STRING,
FILNR TYPE STRING,
KASNAM TYPE STRING,
KUNDK TYPE STRING,
DUMMY1 TYPE STRING,
DUMMY2 TYPE STRING,
DUMMY3 TYPE STRING,
DUMMY4 TYPE STRING,
DUMMY5 TYPE STRING,
TABIX TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCCASH_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_MCCASH_STR-MANDT sy-vline 
WA_MCCASH_STR-WERKS sy-vline 
WA_MCCASH_STR-KSKRS sy-vline 
WA_MCCASH_STR-KASNR sy-vline 
WA_MCCASH_STR-BUDAT sy-vline 
WA_MCCASH_STR-BONNR sy-vline 
WA_MCCASH_STR-KUNNR sy-vline 
WA_MCCASH_STR-EZEIT sy-vline 
WA_MCCASH_STR-KBDNR sy-vline 
WA_MCCASH_STR-ZMTTL sy-vline 
WA_MCCASH_STR-WAERK sy-vline 
WA_MCCASH_STR-BUKRS sy-vline 
WA_MCCASH_STR-SUPKZ sy-vline 
WA_MCCASH_STR-HWAER sy-vline 
WA_MCCASH_STR-KURSK sy-vline 
WA_MCCASH_STR-VKORG sy-vline 
WA_MCCASH_STR-VTWEG sy-vline 
WA_MCCASH_STR-BZIRK sy-vline 
WA_MCCASH_STR-AZPOS sy-vline 
WA_MCCASH_STR-FILNR sy-vline 
WA_MCCASH_STR-KASNAM sy-vline 
WA_MCCASH_STR-KUNDK sy-vline 
WA_MCCASH_STR-DUMMY1 sy-vline 
WA_MCCASH_STR-DUMMY2 sy-vline 
WA_MCCASH_STR-DUMMY3 sy-vline 
WA_MCCASH_STR-DUMMY4 sy-vline 
WA_MCCASH_STR-DUMMY5 sy-vline 
WA_MCCASH_STR-TABIX sy-vline 
WA_MCCASH_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.