ABAP Select data from SAP table FSLSWVB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FSLSWVB
*  INTO TABLE @DATA(IT_FSLSWVB2).
*--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_FSLSWVB INDEX 1 INTO DATA(WA_FSLSWVB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FSLSWVB>-MANDT = 1.
<FSLSWVB>-SLNUM = 1.
<FSLSWVB>-SLDOT = 1.
<FSLSWVB>-LAUNR = 1.
<FSLSWVB>-SLKWT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FSLSWVB-LANUM, sy-vline,
  WA_FSLSWVB-SLKWD, sy-vline,
  WA_FSLSWVB-SLKMA, sy-vline,
  WA_FSLSWVB-UPDKZ, sy-vline,
  WA_FSLSWVB-SELKZ, sy-vline,
  WA_FSLSWVB-EX_SLNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FSLSWVB 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_FSLSWVB 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_FSLSWVB INTO WA_FSLSWVB.


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

*Conversion exit ALPHA, internal->external for field EX_SLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FSLSWVB-EX_SLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FSLSWVB-EX_SLNUM.
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_FSLSWVB_STR, 
MANDT TYPE STRING,
SLNUM TYPE STRING,
SLDOT TYPE STRING,
LAUNR TYPE STRING,
SLKWT TYPE STRING,
LANUM TYPE STRING,
SLKWD TYPE STRING,
SLKMA TYPE STRING,
UPDKZ TYPE STRING,
SELKZ TYPE STRING,
EX_SLNUM TYPE STRING,
EX_SLCAT TYPE STRING,
EX_SLDOT TYPE STRING,
EX_LAUNR TYPE STRING,
EX_SLKWT TYPE STRING,
EX_SLKWD TYPE STRING,
SLKMA_DISP TYPE STRING,
SLDOT_DISP TYPE STRING,
TCSELFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FSLSWVB_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_FSLSWVB_STR-MANDT sy-vline 
WA_FSLSWVB_STR-SLNUM sy-vline 
WA_FSLSWVB_STR-SLDOT sy-vline 
WA_FSLSWVB_STR-LAUNR sy-vline 
WA_FSLSWVB_STR-SLKWT sy-vline 
WA_FSLSWVB_STR-LANUM sy-vline 
WA_FSLSWVB_STR-SLKWD sy-vline 
WA_FSLSWVB_STR-SLKMA sy-vline 
WA_FSLSWVB_STR-UPDKZ sy-vline 
WA_FSLSWVB_STR-SELKZ sy-vline 
WA_FSLSWVB_STR-EX_SLNUM sy-vline 
WA_FSLSWVB_STR-EX_SLCAT sy-vline 
WA_FSLSWVB_STR-EX_SLDOT sy-vline 
WA_FSLSWVB_STR-EX_LAUNR sy-vline 
WA_FSLSWVB_STR-EX_SLKWT sy-vline 
WA_FSLSWVB_STR-EX_SLKWD sy-vline 
WA_FSLSWVB_STR-SLKMA_DISP sy-vline 
WA_FSLSWVB_STR-SLDOT_DISP sy-vline 
WA_FSLSWVB_STR-TCSELFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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