ABAP Select data from SAP table FISTOCKKW_S_LINES into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FISTOCKKW_S_LINES
*  INTO TABLE @DATA(IT_FISTOCKKW_S_LINES2).
*--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_FISTOCKKW_S_LINES INDEX 1 INTO DATA(WA_FISTOCKKW_S_LINES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FISTOCKKW_S_LINES>-MATNR = 1.
<FISTOCKKW_S_LINES>-MAKTX = 1.
<FISTOCKKW_S_LINES>-START_DATE = 1.
<FISTOCKKW_S_LINES>-END_DATE = 1.
<FISTOCKKW_S_LINES>-MEINS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FISTOCKKW_S_LINES-ANFMENGE, sy-vline,
  WA_FISTOCKKW_S_LINES-ANFWERT, sy-vline,
  WA_FISTOCKKW_S_LINES-SOLL, sy-vline,
  WA_FISTOCKKW_S_LINES-SOLLWERT, sy-vline,
  WA_FISTOCKKW_S_LINES-HABEN, sy-vline,
  WA_FISTOCKKW_S_LINES-HABENWERT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FISTOCKKW_S_LINES 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_FISTOCKKW_S_LINES 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_FISTOCKKW_S_LINES INTO WA_FISTOCKKW_S_LINES.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_FISTOCKKW_S_LINES-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FISTOCKKW_S_LINES-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FISTOCKKW_S_LINES-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FISTOCKKW_S_LINES-MEINS.
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_FISTOCKKW_S_LINES_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
MEINS TYPE STRING,
ANFMENGE TYPE STRING,
ANFWERT TYPE STRING,
SOLL TYPE STRING,
SOLLWERT TYPE STRING,
HABEN TYPE STRING,
HABENWERT TYPE STRING,
ENDMENGE TYPE STRING,
ENDWERT TYPE STRING,
WAERS TYPE STRING,
COLORS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FISTOCKKW_S_LINES_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_FISTOCKKW_S_LINES_STR-MATNR sy-vline 
WA_FISTOCKKW_S_LINES_STR-MAKTX sy-vline 
WA_FISTOCKKW_S_LINES_STR-START_DATE sy-vline 
WA_FISTOCKKW_S_LINES_STR-END_DATE sy-vline 
WA_FISTOCKKW_S_LINES_STR-MEINS sy-vline 
WA_FISTOCKKW_S_LINES_STR-ANFMENGE sy-vline 
WA_FISTOCKKW_S_LINES_STR-ANFWERT sy-vline 
WA_FISTOCKKW_S_LINES_STR-SOLL sy-vline 
WA_FISTOCKKW_S_LINES_STR-SOLLWERT sy-vline 
WA_FISTOCKKW_S_LINES_STR-HABEN sy-vline 
WA_FISTOCKKW_S_LINES_STR-HABENWERT sy-vline 
WA_FISTOCKKW_S_LINES_STR-ENDMENGE sy-vline 
WA_FISTOCKKW_S_LINES_STR-ENDWERT sy-vline 
WA_FISTOCKKW_S_LINES_STR-WAERS sy-vline 
WA_FISTOCKKW_S_LINES_STR-COLORS sy-vline      INTO ld_text SEPARATED BY SPACE.

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