ABAP Select data from SAP table FINS_S_ACDOC_SUBSEQ_POST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_S_ACDOC_SUBSEQ_POST
*  INTO TABLE @DATA(IT_FINS_S_ACDOC_SUBSEQ_POST2).
*--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_FINS_S_ACDOC_SUBSEQ_POST INDEX 1 INTO DATA(WA_FINS_S_ACDOC_SUBSEQ_POST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_S_ACDOC_SUBSEQ_POST>-RBUKRS = 1.
<FINS_S_ACDOC_SUBSEQ_POST>-BELNR = 1.
<FINS_S_ACDOC_SUBSEQ_POST>-GJAHR = 1.
<FINS_S_ACDOC_SUBSEQ_POST>-POPER = 1.
<FINS_S_ACDOC_SUBSEQ_POST>-BSTAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_S_ACDOC_SUBSEQ_POST-RLDNR, sy-vline,
  WA_FINS_S_ACDOC_SUBSEQ_POST-AWTYP, sy-vline,
  WA_FINS_S_ACDOC_SUBSEQ_POST-AWSYS, sy-vline,
  WA_FINS_S_ACDOC_SUBSEQ_POST-AWORG, sy-vline,
  WA_FINS_S_ACDOC_SUBSEQ_POST-AWREF, sy-vline,
  WA_FINS_S_ACDOC_SUBSEQ_POST-BVORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_S_ACDOC_SUBSEQ_POST 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_FINS_S_ACDOC_SUBSEQ_POST 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_FINS_S_ACDOC_SUBSEQ_POST INTO WA_FINS_S_ACDOC_SUBSEQ_POST.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FINS_S_ACDOC_SUBSEQ_POST-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_S_ACDOC_SUBSEQ_POST-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_S_ACDOC_SUBSEQ_POST-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_S_ACDOC_SUBSEQ_POST-AWREF.
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_FINS_S_ACDOC_SUBSEQ_POST_STR, 
RBUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
POPER TYPE STRING,
BSTAT TYPE STRING,
RLDNR TYPE STRING,
AWTYP TYPE STRING,
AWSYS TYPE STRING,
AWORG TYPE STRING,
AWREF TYPE STRING,
BVORG TYPE STRING,
INTEGRATED TYPE STRING,
TIMESTAMP TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
DOCTYPE TYPE STRING,
STATISTIC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_S_ACDOC_SUBSEQ_POST_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_FINS_S_ACDOC_SUBSEQ_POST_STR-RBUKRS sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-BELNR sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-GJAHR sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-POPER sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-BSTAT sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-RLDNR sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-AWTYP sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-AWSYS sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-AWORG sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-AWREF sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-BVORG sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-INTEGRATED sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-TIMESTAMP sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-CPUDT sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-CPUTM sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-DOCTYPE sy-vline 
WA_FINS_S_ACDOC_SUBSEQ_POST_STR-STATISTIC sy-vline      INTO ld_text SEPARATED BY SPACE.

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