ABAP Select data from SAP table REMC_MASSCHANGE_PY_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REMC_MASSCHANGE_PY_DATA
*  INTO TABLE @DATA(IT_REMC_MASSCHANGE_PY_DATA2).
*--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_REMC_MASSCHANGE_PY_DATA INDEX 1 INTO DATA(WA_REMC_MASSCHANGE_PY_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REMC_MASSCHANGE_PY_DATA>-VALIDFROM = 1.
<REMC_MASSCHANGE_PY_DATA>-PYMTMETH = 1.
<REMC_MASSCHANGE_PY_DATA>-PYMTMETHCRMO = 1.
<REMC_MASSCHANGE_PY_DATA>-PYMTBLOCK = 1.
<REMC_MASSCHANGE_PY_DATA>-PYMTTERM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REMC_MASSCHANGE_PY_DATA-HOUSEBKID, sy-vline,
  WA_REMC_MASSCHANGE_PY_DATA-HOUSEBKACC, sy-vline,
  WA_REMC_MASSCHANGE_PY_DATA-BANKDETAILID, sy-vline,
  WA_REMC_MASSCHANGE_PY_DATA-NOTETOPAYEE, sy-vline,
  WA_REMC_MASSCHANGE_PY_DATA-DUNNAREA, sy-vline,
  WA_REMC_MASSCHANGE_PY_DATA-DUNNKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REMC_MASSCHANGE_PY_DATA 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_REMC_MASSCHANGE_PY_DATA 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_REMC_MASSCHANGE_PY_DATA INTO WA_REMC_MASSCHANGE_PY_DATA.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_REMC_MASSCHANGE_PY_DATA_STR, 
VALIDFROM TYPE STRING,
PYMTMETH TYPE STRING,
PYMTMETHCRMO TYPE STRING,
PYMTBLOCK TYPE STRING,
PYMTTERM TYPE STRING,
HOUSEBKID TYPE STRING,
HOUSEBKACC TYPE STRING,
BANKDETAILID TYPE STRING,
NOTETOPAYEE TYPE STRING,
DUNNAREA TYPE STRING,
DUNNKEY TYPE STRING,
DUNNBLOCK TYPE STRING,
ACCDETKEY TYPE STRING,
TAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
ISGROSS TYPE STRING,
TXJCD TYPE STRING,
CTRULE TYPE STRING,
SEPAMNDID TYPE STRING,
SEPARECCRDID TYPE STRING,
XPYMTMETH TYPE STRING,
XPYMTMETHCRMO TYPE STRING,
XPYMTBLOCK TYPE STRING,
XPYMTTERM TYPE STRING,
XHOUSEBKID TYPE STRING,
XHOUSEBKACC TYPE STRING,
XBANKDETAILID TYPE STRING,
XDUNNAREA TYPE STRING,
XDUNNKEY TYPE STRING,
XDUNNBLOCK TYPE STRING,
XACCDETKEY TYPE STRING,
XTAXTYPE TYPE STRING,
XTAXGROUP TYPE STRING,
XTXJCD TYPE STRING,
XCTRULE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REMC_MASSCHANGE_PY_DATA_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_REMC_MASSCHANGE_PY_DATA_STR-VALIDFROM sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-PYMTMETH sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-PYMTMETHCRMO sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-PYMTBLOCK sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-PYMTTERM sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-HOUSEBKID sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-HOUSEBKACC sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-BANKDETAILID sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-NOTETOPAYEE sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-DUNNAREA sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-DUNNKEY sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-DUNNBLOCK sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-ACCDETKEY sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-TAXTYPE sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-TAXGROUP sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-ISGROSS sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-TXJCD sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-CTRULE sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-SEPAMNDID sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-SEPARECCRDID sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XPYMTMETH sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XPYMTMETHCRMO sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XPYMTBLOCK sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XPYMTTERM sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XHOUSEBKID sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XHOUSEBKACC sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XBANKDETAILID sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XDUNNAREA sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XDUNNKEY sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XDUNNBLOCK sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XACCDETKEY sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XTAXTYPE sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XTAXGROUP sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XTXJCD sy-vline 
WA_REMC_MASSCHANGE_PY_DATA_STR-XCTRULE sy-vline      INTO ld_text SEPARATED BY SPACE.

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