ABAP Select data from SAP table FAGLFLEX_BSL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGLFLEX_BSL 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_BSL. 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_BSL 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_BSL TYPE STANDARD TABLE OF FAGLFLEX_BSL,
      WA_FAGLFLEX_BSL TYPE FAGLFLEX_BSL,
      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_BSL> TYPE FAGLFLEX_BSL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGLFLEX_BSL
*  INTO TABLE @DATA(IT_FAGLFLEX_BSL2).
*--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_BSL INDEX 1 INTO DATA(WA_FAGLFLEX_BSL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGLFLEX_BSL>-BSLVT = 1.
<FAGLFLEX_BSL>-BSL01 = 1.
<FAGLFLEX_BSL>-BSL02 = 1.
<FAGLFLEX_BSL>-BSL03 = 1.
<FAGLFLEX_BSL>-BSL04 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGLFLEX_BSL-BSL05, sy-vline,
  WA_FAGLFLEX_BSL-BSL06, sy-vline,
  WA_FAGLFLEX_BSL-BSL07, sy-vline,
  WA_FAGLFLEX_BSL-BSL08, sy-vline,
  WA_FAGLFLEX_BSL-BSL09, sy-vline,
  WA_FAGLFLEX_BSL-BSL10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGLFLEX_BSL 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_BSL 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_BSL INTO WA_FAGLFLEX_BSL.


*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_BSL_STR, 
BSLVT TYPE STRING,
BSL01 TYPE STRING,
BSL02 TYPE STRING,
BSL03 TYPE STRING,
BSL04 TYPE STRING,
BSL05 TYPE STRING,
BSL06 TYPE STRING,
BSL07 TYPE STRING,
BSL08 TYPE STRING,
BSL09 TYPE STRING,
BSL10 TYPE STRING,
BSL11 TYPE STRING,
BSL12 TYPE STRING,
BSL13 TYPE STRING,
BSL14 TYPE STRING,
BSL15 TYPE STRING,
BSL16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGLFLEX_BSL_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_BSL_STR-BSLVT sy-vline 
WA_FAGLFLEX_BSL_STR-BSL01 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL02 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL03 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL04 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL05 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL06 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL07 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL08 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL09 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL10 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL11 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL12 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL13 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL14 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL15 sy-vline 
WA_FAGLFLEX_BSL_STR-BSL16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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