ABAP Select data from SAP table HR99S_FL_DYNAMIC_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HR99S_FL_DYNAMIC_FIELDS 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 HR99S_FL_DYNAMIC_FIELDS. 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 HR99S_FL_DYNAMIC_FIELDS 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_HR99S_FL_DYNAMIC_FIELDS TYPE STANDARD TABLE OF HR99S_FL_DYNAMIC_FIELDS,
      WA_HR99S_FL_DYNAMIC_FIELDS TYPE HR99S_FL_DYNAMIC_FIELDS,
      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: <HR99S_FL_DYNAMIC_FIELDS> TYPE HR99S_FL_DYNAMIC_FIELDS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HR99S_FL_DYNAMIC_FIELDS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HR99S_FL_DYNAMIC_FIELDS
  INTO TABLE IT_HR99S_FL_DYNAMIC_FIELDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HR99S_FL_DYNAMIC_FIELDS
*  INTO TABLE @DATA(IT_HR99S_FL_DYNAMIC_FIELDS2).
*--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_HR99S_FL_DYNAMIC_FIELDS INDEX 1 INTO DATA(WA_HR99S_FL_DYNAMIC_FIELDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HR99S_FL_DYNAMIC_FIELDS ASSIGNING <HR99S_FL_DYNAMIC_FIELDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HR99S_FL_DYNAMIC_FIELDS>-FKE1 = 1.
<HR99S_FL_DYNAMIC_FIELDS>-FVAL1 = 1.
<HR99S_FL_DYNAMIC_FIELDS>-FKE2 = 1.
<HR99S_FL_DYNAMIC_FIELDS>-FVAL2 = 1.
<HR99S_FL_DYNAMIC_FIELDS>-FKE3 = 1.

ENDLOOP.

LOOP AT IT_HR99S_FL_DYNAMIC_FIELDS INTO WA_HR99S_FL_DYNAMIC_FIELDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HR99S_FL_DYNAMIC_FIELDS-FVAL3, sy-vline,
  WA_HR99S_FL_DYNAMIC_FIELDS-FKE4, sy-vline,
  WA_HR99S_FL_DYNAMIC_FIELDS-FVAL4, sy-vline,
  WA_HR99S_FL_DYNAMIC_FIELDS-FKE5, sy-vline,
  WA_HR99S_FL_DYNAMIC_FIELDS-FVAL5, sy-vline,
  WA_HR99S_FL_DYNAMIC_FIELDS-FKE6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HR99S_FL_DYNAMIC_FIELDS 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_HR99S_FL_DYNAMIC_FIELDS 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_HR99S_FL_DYNAMIC_FIELDS INTO WA_HR99S_FL_DYNAMIC_FIELDS.


*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_HR99S_FL_DYNAMIC_FIELDS_STR, 
FKE1 TYPE STRING,
FVAL1 TYPE STRING,
FKE2 TYPE STRING,
FVAL2 TYPE STRING,
FKE3 TYPE STRING,
FVAL3 TYPE STRING,
FKE4 TYPE STRING,
FVAL4 TYPE STRING,
FKE5 TYPE STRING,
FVAL5 TYPE STRING,
FKE6 TYPE STRING,
FVAL6 TYPE STRING,
FKE7 TYPE STRING,
FVAL7 TYPE STRING,
FKE8 TYPE STRING,
FVAL8 TYPE STRING,
FKE9 TYPE STRING,
FVAL9 TYPE STRING,
FKE10 TYPE STRING,
FVAL10 TYPE STRING,
FKE11 TYPE STRING,
FVAL11 TYPE STRING,
FKE12 TYPE STRING,
FVAL12 TYPE STRING,
FKE13 TYPE STRING,
FVAL13 TYPE STRING,
FKE14 TYPE STRING,
FVAL14 TYPE STRING,
FKE15 TYPE STRING,
FVAL15 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HR99S_FL_DYNAMIC_FIELDS_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_HR99S_FL_DYNAMIC_FIELDS_STR-FKE1 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL1 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE2 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL2 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE3 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL3 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE4 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL4 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE5 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL5 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE6 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL6 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE7 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL7 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE8 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL8 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE9 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL9 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE10 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL10 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE11 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL11 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE12 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL12 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE13 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL13 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE14 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL14 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FKE15 sy-vline 
WA_HR99S_FL_DYNAMIC_FIELDS_STR-FVAL15 sy-vline      INTO ld_text SEPARATED BY SPACE.

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