ABAP Select data from SAP table HRDESV_UV_FORMDATA_ELN 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 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. 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 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 TYPE STANDARD TABLE OF HRDESV_UV_FORMDATA_ELN,
      WA_HRDESV_UV_FORMDATA_ELN TYPE HRDESV_UV_FORMDATA_ELN,
      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> TYPE HRDESV_UV_FORMDATA_ELN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESV_UV_FORMDATA_ELN
*  INTO TABLE @DATA(IT_HRDESV_UV_FORMDATA_ELN2).
*--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 INDEX 1 INTO DATA(WA_HRDESV_UV_FORMDATA_ELN2).


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

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

ENDLOOP.

LOOP AT IT_HRDESV_UV_FORMDATA_ELN INTO WA_HRDESV_UV_FORMDATA_ELN.
*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-BBNRUV, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN-UVTXT, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN-JAHR, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN-MDGD, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN-ULDAT, sy-vline,
  WA_HRDESV_UV_FORMDATA_ELN-KENNZST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESV_UV_FORMDATA_ELN 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 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 INTO WA_HRDESV_UV_FORMDATA_ELN.


*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_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,
BAUV_GT_USICHT TYPE STRING,
PERS_DAT_PFL TYPE STRING,
PERS_DAT_NPFL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESV_UV_FORMDATA_ELN_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_STR-NAME_AG1 sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-NAME_AG2 sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-STRASSE sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-PLORT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-MITNR sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-BBNRUV sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-UVTXT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-JAHR sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-MDGD sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-ULDAT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-KENNZST sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-DATUM_STORNO sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-UZEIT_STORNO sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-BEITRAG sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-ANZVS sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-BBNRLB sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-BBNRAS sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-LFDNR sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-DATUM sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-UZEIT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-BAUV_GT_USICHT sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-PERS_DAT_PFL sy-vline 
WA_HRDESV_UV_FORMDATA_ELN_STR-PERS_DAT_NPFL sy-vline      INTO ld_text SEPARATED BY SPACE.

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