ABAP Select data from SAP table IFMFGRCN_REG_PROVIDER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFMFGRCN_REG_PROVIDER
*  INTO TABLE @DATA(IT_IFMFGRCN_REG_PROVIDER2).
*--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_IFMFGRCN_REG_PROVIDER INDEX 1 INTO DATA(WA_IFMFGRCN_REG_PROVIDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFMFGRCN_REG_PROVIDER>-SLICE = 1.
<IFMFGRCN_REG_PROVIDER>-OPERATOR = 1.
<IFMFGRCN_REG_PROVIDER>-SLICEID = 1.
<IFMFGRCN_REG_PROVIDER>-SLICENAMESHORT = 1.
<IFMFGRCN_REG_PROVIDER>-SIDE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFMFGRCN_REG_PROVIDER-PROVIDERID, sy-vline,
  WA_IFMFGRCN_REG_PROVIDER-PROVIDER, sy-vline,
  WA_IFMFGRCN_REG_PROVIDER-PROVIDERCLS, sy-vline,
  WA_IFMFGRCN_REG_PROVIDER-COL_NO, sy-vline,
  WA_IFMFGRCN_REG_PROVIDER-COL_NAME, sy-vline,
  WA_IFMFGRCN_REG_PROVIDER-LEDGERID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFMFGRCN_REG_PROVIDER 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_IFMFGRCN_REG_PROVIDER 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_IFMFGRCN_REG_PROVIDER INTO WA_IFMFGRCN_REG_PROVIDER.


*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 LEDGERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFMFGRCN_REG_PROVIDER-LEDGERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFMFGRCN_REG_PROVIDER-LEDGERID.
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_IFMFGRCN_REG_PROVIDER_STR, 
SLICE TYPE STRING,
OPERATOR TYPE STRING,
SLICEID TYPE STRING,
SLICENAMESHORT TYPE STRING,
SIDE TYPE STRING,
PROVIDERID TYPE STRING,
PROVIDER TYPE STRING,
PROVIDERCLS TYPE STRING,
COL_NO TYPE STRING,
COL_NAME TYPE STRING,
LEDGERID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFMFGRCN_REG_PROVIDER_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_IFMFGRCN_REG_PROVIDER_STR-SLICE sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-OPERATOR sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-SLICEID sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-SLICENAMESHORT sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-SIDE sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-PROVIDERID sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-PROVIDER sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-PROVIDERCLS sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-COL_NO sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-COL_NAME sy-vline 
WA_IFMFGRCN_REG_PROVIDER_STR-LEDGERID sy-vline      INTO ld_text SEPARATED BY SPACE.

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