ABAP Select data from SAP table VFCLM_BAM_AMDSGP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFCLM_BAM_AMDSGP
*  INTO TABLE @DATA(IT_VFCLM_BAM_AMDSGP2).
*--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_VFCLM_BAM_AMDSGP INDEX 1 INTO DATA(WA_VFCLM_BAM_AMDSGP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFCLM_BAM_AMDSGP>-MANDT = 1.
<VFCLM_BAM_AMDSGP>-ACCOUNTID = 1.
<VFCLM_BAM_AMDSGP>-SIGNATORY = 1.
<VFCLM_BAM_AMDSGP>-VALIDTO = 1.
<VFCLM_BAM_AMDSGP>-CURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFCLM_BAM_AMDSGP-VALIDFROM, sy-vline,
  WA_VFCLM_BAM_AMDSGP-SIGNATORYGROUP, sy-vline,
  WA_VFCLM_BAM_AMDSGP-SIGNATORYGROUPDESP, sy-vline,
  WA_VFCLM_BAM_AMDSGP-CURRENCYDESP, sy-vline,
  WA_VFCLM_BAM_AMDSGP-PAYMENTAMOUNT, sy-vline,
  WA_VFCLM_BAM_AMDSGP-BATCHPAYMENTAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFCLM_BAM_AMDSGP 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_VFCLM_BAM_AMDSGP 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_VFCLM_BAM_AMDSGP INTO WA_VFCLM_BAM_AMDSGP.


*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 AC172, internal->external for field PAYMENTAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_VFCLM_BAM_AMDSGP-PAYMENTAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLM_BAM_AMDSGP-PAYMENTAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field BATCHPAYMENTAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_VFCLM_BAM_AMDSGP-BATCHPAYMENTAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLM_BAM_AMDSGP-BATCHPAYMENTAMOUNT.
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_VFCLM_BAM_AMDSGP_STR, 
MANDT TYPE STRING,
ACCOUNTID TYPE STRING,
SIGNATORY TYPE STRING,
VALIDTO TYPE STRING,
CURRENCY TYPE STRING,
VALIDFROM TYPE STRING,
SIGNATORYGROUP TYPE STRING,
SIGNATORYGROUPDESP TYPE STRING,
CURRENCYDESP TYPE STRING,
PAYMENTAMOUNT TYPE STRING,
BATCHPAYMENTAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFCLM_BAM_AMDSGP_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_VFCLM_BAM_AMDSGP_STR-MANDT sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-ACCOUNTID sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-SIGNATORY sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-VALIDTO sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-CURRENCY sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-VALIDFROM sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-SIGNATORYGROUP sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-SIGNATORYGROUPDESP sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-CURRENCYDESP sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-PAYMENTAMOUNT sy-vline 
WA_VFCLM_BAM_AMDSGP_STR-BATCHPAYMENTAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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