ABAP Select data from SAP table FAGLFLEX_DSL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FAGLFLEX_DSL 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_DSL. 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_DSL 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_DSL TYPE STANDARD TABLE OF FAGLFLEX_DSL,
      WA_FAGLFLEX_DSL TYPE FAGLFLEX_DSL,
      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_DSL> TYPE FAGLFLEX_DSL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAGLFLEX_DSL
*  INTO TABLE @DATA(IT_FAGLFLEX_DSL2).
*--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_DSL INDEX 1 INTO DATA(WA_FAGLFLEX_DSL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAGLFLEX_DSL>-DSLVT = 1.
<FAGLFLEX_DSL>-DSL01 = 1.
<FAGLFLEX_DSL>-DSL02 = 1.
<FAGLFLEX_DSL>-DSL03 = 1.
<FAGLFLEX_DSL>-DSL04 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAGLFLEX_DSL-DSL05, sy-vline,
  WA_FAGLFLEX_DSL-DSL06, sy-vline,
  WA_FAGLFLEX_DSL-DSL07, sy-vline,
  WA_FAGLFLEX_DSL-DSL08, sy-vline,
  WA_FAGLFLEX_DSL-DSL09, sy-vline,
  WA_FAGLFLEX_DSL-DSL10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAGLFLEX_DSL 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_DSL 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_DSL INTO WA_FAGLFLEX_DSL.


*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_DSL_STR, 
DSLVT TYPE STRING,
DSL01 TYPE STRING,
DSL02 TYPE STRING,
DSL03 TYPE STRING,
DSL04 TYPE STRING,
DSL05 TYPE STRING,
DSL06 TYPE STRING,
DSL07 TYPE STRING,
DSL08 TYPE STRING,
DSL09 TYPE STRING,
DSL10 TYPE STRING,
DSL11 TYPE STRING,
DSL12 TYPE STRING,
DSL13 TYPE STRING,
DSL14 TYPE STRING,
DSL15 TYPE STRING,
DSL16 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAGLFLEX_DSL_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_DSL_STR-DSLVT sy-vline 
WA_FAGLFLEX_DSL_STR-DSL01 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL02 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL03 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL04 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL05 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL06 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL07 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL08 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL09 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL10 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL11 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL12 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL13 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL14 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL15 sy-vline 
WA_FAGLFLEX_DSL_STR-DSL16 sy-vline      INTO ld_text SEPARATED BY SPACE.

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