ABAP Select data from SAP table HRDESV_UV_S_DSLN 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_S_DSLN 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_S_DSLN. 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_S_DSLN 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_S_DSLN TYPE STANDARD TABLE OF HRDESV_UV_S_DSLN,
      WA_HRDESV_UV_S_DSLN TYPE HRDESV_UV_S_DSLN,
      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_S_DSLN> TYPE HRDESV_UV_S_DSLN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESV_UV_S_DSLN
*  INTO TABLE @DATA(IT_HRDESV_UV_S_DSLN2).
*--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_S_DSLN INDEX 1 INTO DATA(WA_HRDESV_UV_S_DSLN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDESV_UV_S_DSLN>-VF = 1.
<HRDESV_UV_S_DSLN>-BBNRAB = 1.
<HRDESV_UV_S_DSLN>-BBNREP = 1.
<HRDESV_UV_S_DSLN>-VERNR = 1.
<HRDESV_UV_S_DSLN>-NEVERNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDESV_UV_S_DSLN-ED, sy-vline,
  WA_HRDESV_UV_S_DSLN-MMFU, sy-vline,
  WA_HRDESV_UV_S_DSLN-FEKZ, sy-vline,
  WA_HRDESV_UV_S_DSLN-FEAN, sy-vline,
  WA_HRDESV_UV_S_DSLN-PRODID, sy-vline,
  WA_HRDESV_UV_S_DSLN-MODID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESV_UV_S_DSLN 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_S_DSLN 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_S_DSLN INTO WA_HRDESV_UV_S_DSLN.


*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_S_DSLN_STR, 
VF TYPE STRING,
BBNRAB TYPE STRING,
BBNREP TYPE STRING,
VERNR TYPE STRING,
NEVERNR TYPE STRING,
ED TYPE STRING,
MMFU TYPE STRING,
FEKZ TYPE STRING,
FEAN TYPE STRING,
PRODID TYPE STRING,
MODID TYPE STRING,
DSID TYPE STRING,
VORGID TYPE STRING,
KENNZST TYPE STRING,
MMUEB TYPE STRING,
BBNRUV TYPE STRING,
MITNR TYPE STRING,
PIN TYPE STRING,
LFDNR TYPE STRING,
JAHR TYPE STRING,
BBNRLB TYPE STRING,
BBNRAS TYPE STRING,
MMAP TYPE STRING,
MDGRUND TYPE STRING,
UVGRUND TYPE STRING,
ANZVERS TYPE STRING,
ANUV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESV_UV_S_DSLN_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_S_DSLN_STR-VF sy-vline 
WA_HRDESV_UV_S_DSLN_STR-BBNRAB sy-vline 
WA_HRDESV_UV_S_DSLN_STR-BBNREP sy-vline 
WA_HRDESV_UV_S_DSLN_STR-VERNR sy-vline 
WA_HRDESV_UV_S_DSLN_STR-NEVERNR sy-vline 
WA_HRDESV_UV_S_DSLN_STR-ED sy-vline 
WA_HRDESV_UV_S_DSLN_STR-MMFU sy-vline 
WA_HRDESV_UV_S_DSLN_STR-FEKZ sy-vline 
WA_HRDESV_UV_S_DSLN_STR-FEAN sy-vline 
WA_HRDESV_UV_S_DSLN_STR-PRODID sy-vline 
WA_HRDESV_UV_S_DSLN_STR-MODID sy-vline 
WA_HRDESV_UV_S_DSLN_STR-DSID sy-vline 
WA_HRDESV_UV_S_DSLN_STR-VORGID sy-vline 
WA_HRDESV_UV_S_DSLN_STR-KENNZST sy-vline 
WA_HRDESV_UV_S_DSLN_STR-MMUEB sy-vline 
WA_HRDESV_UV_S_DSLN_STR-BBNRUV sy-vline 
WA_HRDESV_UV_S_DSLN_STR-MITNR sy-vline 
WA_HRDESV_UV_S_DSLN_STR-PIN sy-vline 
WA_HRDESV_UV_S_DSLN_STR-LFDNR sy-vline 
WA_HRDESV_UV_S_DSLN_STR-JAHR sy-vline 
WA_HRDESV_UV_S_DSLN_STR-BBNRLB sy-vline 
WA_HRDESV_UV_S_DSLN_STR-BBNRAS sy-vline 
WA_HRDESV_UV_S_DSLN_STR-MMAP sy-vline 
WA_HRDESV_UV_S_DSLN_STR-MDGRUND sy-vline 
WA_HRDESV_UV_S_DSLN_STR-UVGRUND sy-vline 
WA_HRDESV_UV_S_DSLN_STR-ANZVERS sy-vline 
WA_HRDESV_UV_S_DSLN_STR-ANUV sy-vline      INTO ld_text SEPARATED BY SPACE.

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