ABAP Select data from SAP table UPC_YS_HIELIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UPC_YS_HIELIST
*  INTO TABLE @DATA(IT_UPC_YS_HIELIST2).
*--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_UPC_YS_HIELIST INDEX 1 INTO DATA(WA_UPC_YS_HIELIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UPC_YS_HIELIST>-HIENM = 1.
<UPC_YS_HIELIST>-HIEVER = 1.
<UPC_YS_HIELIST>-DATETO = 1.
<UPC_YS_HIELIST>-CHANM = 1.
<UPC_YS_HIELIST>-DATEFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UPC_YS_HIELIST-STARTLEVEL, sy-vline,
  WA_UPC_YS_HIELIST-NODEPOSITION, sy-vline,
  WA_UPC_YS_HIELIST-TXTSH, sy-vline,
  WA_UPC_YS_HIELIST-TXTMD, sy-vline,
  WA_UPC_YS_HIELIST-TXTLG, sy-vline,
  WA_UPC_YS_HIELIST-TIMESTMP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UPC_YS_HIELIST 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_UPC_YS_HIELIST 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_UPC_YS_HIELIST INTO WA_UPC_YS_HIELIST.


*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_UPC_YS_HIELIST_STR, 
HIENM TYPE STRING,
HIEVER TYPE STRING,
DATETO TYPE STRING,
CHANM TYPE STRING,
DATEFROM TYPE STRING,
STARTLEVEL TYPE STRING,
NODEPOSITION TYPE STRING,
TXTSH TYPE STRING,
TXTMD TYPE STRING,
TXTLG TYPE STRING,
TIMESTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UPC_YS_HIELIST_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_UPC_YS_HIELIST_STR-HIENM sy-vline 
WA_UPC_YS_HIELIST_STR-HIEVER sy-vline 
WA_UPC_YS_HIELIST_STR-DATETO sy-vline 
WA_UPC_YS_HIELIST_STR-CHANM sy-vline 
WA_UPC_YS_HIELIST_STR-DATEFROM sy-vline 
WA_UPC_YS_HIELIST_STR-STARTLEVEL sy-vline 
WA_UPC_YS_HIELIST_STR-NODEPOSITION sy-vline 
WA_UPC_YS_HIELIST_STR-TXTSH sy-vline 
WA_UPC_YS_HIELIST_STR-TXTMD sy-vline 
WA_UPC_YS_HIELIST_STR-TXTLG sy-vline 
WA_UPC_YS_HIELIST_STR-TIMESTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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