ABAP Select data from SAP table FIN1_PARAM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FIN1_PARAM 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 FIN1_PARAM. 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 FIN1_PARAM 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_FIN1_PARAM TYPE STANDARD TABLE OF FIN1_PARAM,
      WA_FIN1_PARAM TYPE FIN1_PARAM,
      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: <FIN1_PARAM> TYPE FIN1_PARAM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FIN1_PARAM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FIN1_PARAM
  INTO TABLE IT_FIN1_PARAM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIN1_PARAM
*  INTO TABLE @DATA(IT_FIN1_PARAM2).
*--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_FIN1_PARAM INDEX 1 INTO DATA(WA_FIN1_PARAM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FIN1_PARAM ASSIGNING <FIN1_PARAM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIN1_PARAM>-APPLI = 1.
<FIN1_PARAM>-AKTYP = 1.
<FIN1_PARAM>-BUKRS = 1.
<FIN1_PARAM>-WERKS = 1.
<FIN1_PARAM>-BLGAR = 1.

ENDLOOP.

LOOP AT IT_FIN1_PARAM INTO WA_FIN1_PARAM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIN1_PARAM-XBLNR, sy-vline,
  WA_FIN1_PARAM-BRNCH, sy-vline,
  WA_FIN1_PARAM-BUPLA, sy-vline,
  WA_FIN1_PARAM-BWART, sy-vline,
  WA_FIN1_PARAM-BWKEY, sy-vline,
  WA_FIN1_PARAM-LGORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIN1_PARAM 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_FIN1_PARAM 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_FIN1_PARAM INTO WA_FIN1_PARAM.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIN1_PARAM-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIN1_PARAM-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIN1_PARAM-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIN1_PARAM-KUNNR.
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_FIN1_PARAM_STR, 
APPLI TYPE STRING,
AKTYP TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BLGAR TYPE STRING,
XBLNR TYPE STRING,
BRNCH TYPE STRING,
BUPLA TYPE STRING,
BWART TYPE STRING,
BWKEY TYPE STRING,
LGORT TYPE STRING,
XSTOR TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
MWSKZ TYPE STRING,
MWART TYPE STRING,
QSSKZ TYPE STRING,
COMP_COUNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIN1_PARAM_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_FIN1_PARAM_STR-APPLI sy-vline 
WA_FIN1_PARAM_STR-AKTYP sy-vline 
WA_FIN1_PARAM_STR-BUKRS sy-vline 
WA_FIN1_PARAM_STR-WERKS sy-vline 
WA_FIN1_PARAM_STR-BLGAR sy-vline 
WA_FIN1_PARAM_STR-XBLNR sy-vline 
WA_FIN1_PARAM_STR-BRNCH sy-vline 
WA_FIN1_PARAM_STR-BUPLA sy-vline 
WA_FIN1_PARAM_STR-BWART sy-vline 
WA_FIN1_PARAM_STR-BWKEY sy-vline 
WA_FIN1_PARAM_STR-LGORT sy-vline 
WA_FIN1_PARAM_STR-XSTOR sy-vline 
WA_FIN1_PARAM_STR-LIFNR sy-vline 
WA_FIN1_PARAM_STR-KUNNR sy-vline 
WA_FIN1_PARAM_STR-MWSKZ sy-vline 
WA_FIN1_PARAM_STR-MWART sy-vline 
WA_FIN1_PARAM_STR-QSSKZ sy-vline 
WA_FIN1_PARAM_STR-COMP_COUNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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