ABAP Select data from SAP table FAGLFLEX_VSL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGLFLEX_VSL
*  INTO TABLE @DATA(IT_FAGLFLEX_VSL2).
*--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_FAGLFLEX_VSL INDEX 1 INTO DATA(WA_FAGLFLEX_VSL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGLFLEX_VSL>-VSLVT = 1.
<FAGLFLEX_VSL>-VSL01 = 1.
<FAGLFLEX_VSL>-VSL02 = 1.
<FAGLFLEX_VSL>-VSL03 = 1.
<FAGLFLEX_VSL>-VSL04 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGLFLEX_VSL-VSL05, sy-vline,
  WA_FAGLFLEX_VSL-VSL06, sy-vline,
  WA_FAGLFLEX_VSL-VSL07, sy-vline,
  WA_FAGLFLEX_VSL-VSL08, sy-vline,
  WA_FAGLFLEX_VSL-VSL09, sy-vline,
  WA_FAGLFLEX_VSL-VSL10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGLFLEX_VSL 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_FAGLFLEX_VSL 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_FAGLFLEX_VSL INTO WA_FAGLFLEX_VSL.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FAGLFLEX_VSL_STR, 
VSLVT TYPE STRING,
VSL01 TYPE STRING,
VSL02 TYPE STRING,
VSL03 TYPE STRING,
VSL04 TYPE STRING,
VSL05 TYPE STRING,
VSL06 TYPE STRING,
VSL07 TYPE STRING,
VSL08 TYPE STRING,
VSL09 TYPE STRING,
VSL10 TYPE STRING,
VSL11 TYPE STRING,
VSL12 TYPE STRING,
VSL13 TYPE STRING,
VSL14 TYPE STRING,
VSL15 TYPE STRING,
VSL16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGLFLEX_VSL_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_FAGLFLEX_VSL_STR-VSLVT sy-vline 
WA_FAGLFLEX_VSL_STR-VSL01 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL02 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL03 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL04 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL05 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL06 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL07 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL08 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL09 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL10 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL11 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL12 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL13 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL14 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL15 sy-vline 
WA_FAGLFLEX_VSL_STR-VSL16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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