ABAP Select data from SAP table HRDESV_UV_FORMDATA_ELN_FLAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESV_UV_FORMDATA_ELN_FLAT
*  INTO TABLE @DATA(IT_HRDESV_UV_FORMDATA_ELN_FLAT2).
*--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_HRDESV_UV_FORMDATA_ELN_FLAT INDEX 1 INTO DATA(WA_HRDESV_UV_FORMDATA_ELN_FLAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDESV_UV_FORMDATA_ELN_FLAT>-NAME_AG1 = 1.
<HRDESV_UV_FORMDATA_ELN_FLAT>-NAME_AG2 = 1.
<HRDESV_UV_FORMDATA_ELN_FLAT>-STRASSE = 1.
<HRDESV_UV_FORMDATA_ELN_FLAT>-PLORT = 1.
<HRDESV_UV_FORMDATA_ELN_FLAT>-MITNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDESV_UV_FORMDATA_ELN_FLAT-BBNRUV, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN_FLAT-UVTXT, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN_FLAT-JAHR, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN_FLAT-MDGD, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN_FLAT-ULDAT, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN_FLAT-KENNZST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESV_UV_FORMDATA_ELN_FLAT 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_HRDESV_UV_FORMDATA_ELN_FLAT 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_HRDESV_UV_FORMDATA_ELN_FLAT INTO WA_HRDESV_UV_FORMDATA_ELN_FLAT.


*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_HRDESV_UV_FORMDATA_ELN_FLAT_STR, 
NAME_AG1 TYPE STRING,
NAME_AG2 TYPE STRING,
STRASSE TYPE STRING,
PLORT TYPE STRING,
MITNR TYPE STRING,
BBNRUV TYPE STRING,
UVTXT TYPE STRING,
JAHR TYPE STRING,
MDGD TYPE STRING,
ULDAT TYPE STRING,
KENNZST TYPE STRING,
DATUM_STORNO TYPE STRING,
UZEIT_STORNO TYPE STRING,
BEITRAG TYPE STRING,
ANZVS TYPE STRING,
BBNRLB TYPE STRING,
BBNRAS TYPE STRING,
LFDNR TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESV_UV_FORMDATA_ELN_FLAT_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_HRDESV_UV_FORMDATA_ELN_FLAT_STR-NAME_AG1 sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-NAME_AG2 sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-STRASSE sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-PLORT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-MITNR sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-BBNRUV sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-UVTXT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-JAHR sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-MDGD sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-ULDAT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-KENNZST sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-DATUM_STORNO sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-UZEIT_STORNO sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-BEITRAG sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-ANZVS sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-BBNRLB sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-BBNRAS sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-LFDNR sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-DATUM sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_FLAT_STR-UZEIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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