ABAP Select data from SAP table FMFG_RE_PMT_EXT_SALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMFG_RE_PMT_EXT_SALV
*  INTO TABLE @DATA(IT_FMFG_RE_PMT_EXT_SALV2).
*--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_FMFG_RE_PMT_EXT_SALV INDEX 1 INTO DATA(WA_FMFG_RE_PMT_EXT_SALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMFG_RE_PMT_EXT_SALV>-MANDT = 1.
<FMFG_RE_PMT_EXT_SALV>-INTRENO = 1.
<FMFG_RE_PMT_EXT_SALV>-TERMTYPE = 1.
<FMFG_RE_PMT_EXT_SALV>-TERMNO = 1.
<FMFG_RE_PMT_EXT_SALV>-VALIDFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMFG_RE_PMT_EXT_SALV-CDSPLITNO, sy-vline,
  WA_FMFG_RE_PMT_EXT_SALV-VALIDTO, sy-vline,
  WA_FMFG_RE_PMT_EXT_SALV-EQUINUM, sy-vline,
  WA_FMFG_RE_PMT_EXT_SALV-HASROUNDDIFF, sy-vline,
  WA_FMFG_RE_PMT_EXT_SALV-PARTNER, sy-vline,
  WA_FMFG_RE_PMT_EXT_SALV-PYMTMETH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMFG_RE_PMT_EXT_SALV 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_FMFG_RE_PMT_EXT_SALV 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_FMFG_RE_PMT_EXT_SALV INTO WA_FMFG_RE_PMT_EXT_SALV.


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

*Conversion exit REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_RE_PMT_EXT_SALV-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_RE_PMT_EXT_SALV-VALIDTO.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field TERMNOWT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMFG_RE_PMT_EXT_SALV-TERMNOWT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMFG_RE_PMT_EXT_SALV-TERMNOWT.
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_FMFG_RE_PMT_EXT_SALV_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
TERMTYPE TYPE STRING,
TERMNO TYPE STRING,
VALIDFROM TYPE STRING,
CDSPLITNO TYPE STRING,
VALIDTO TYPE STRING,
EQUINUM TYPE STRING,
HASROUNDDIFF TYPE STRING,
PARTNER TYPE STRING,
PYMTMETH TYPE STRING,
PYMTBLOCK TYPE STRING,
PYMTTERM TYPE STRING,
DUNNAREA TYPE STRING,
DUNNBLOCK TYPE STRING,
BANKDETAILID TYPE STRING,
TERMNOOA TYPE STRING,
SEPAMNDID TYPE STRING,
SEPARECCRDID TYPE STRING,
TERMNOWT TYPE STRING,
XPARTNER TYPE STRING,
COUNTRY TYPE STRING,
ISDEBITCN TYPE STRING,
ISCREDITCN TYPE STRING,
COLORTAB TYPE STRING,
STYLETAB TYPE STRING,
AGNCY_LCTN_CODE TYPE STRING,
PMT_OFFICE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMFG_RE_PMT_EXT_SALV_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_FMFG_RE_PMT_EXT_SALV_STR-MANDT sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-INTRENO sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-TERMTYPE sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-TERMNO sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-VALIDFROM sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-CDSPLITNO sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-VALIDTO sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-EQUINUM sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-HASROUNDDIFF sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-PARTNER sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-PYMTMETH sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-PYMTBLOCK sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-PYMTTERM sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-DUNNAREA sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-DUNNBLOCK sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-BANKDETAILID sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-TERMNOOA sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-SEPAMNDID sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-SEPARECCRDID sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-TERMNOWT sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-XPARTNER sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-COUNTRY sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-ISDEBITCN sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-ISCREDITCN sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-COLORTAB sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-STYLETAB sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-AGNCY_LCTN_CODE sy-vline 
WA_FMFG_RE_PMT_EXT_SALV_STR-PMT_OFFICE sy-vline      INTO ld_text SEPARATED BY SPACE.

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