ABAP Select data from SAP table PSHLP_HIERARCHY_DRAFT_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSHLP_HIERARCHY_DRAFT_ST
*  INTO TABLE @DATA(IT_PSHLP_HIERARCHY_DRAFT_ST2).
*--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_PSHLP_HIERARCHY_DRAFT_ST INDEX 1 INTO DATA(WA_PSHLP_HIERARCHY_DRAFT_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSHLP_HIERARCHY_DRAFT_ST>-ICON = 1.
<PSHLP_HIERARCHY_DRAFT_ST>-ID = 1.
<PSHLP_HIERARCHY_DRAFT_ST>-PARENT = 1.
<PSHLP_HIERARCHY_DRAFT_ST>-TYPE = 1.
<PSHLP_HIERARCHY_DRAFT_ST>-NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSHLP_HIERARCHY_DRAFT_ST-TLEVEL, sy-vline,
  WA_PSHLP_HIERARCHY_DRAFT_ST-POSID, sy-vline,
  WA_PSHLP_HIERARCHY_DRAFT_ST-VORNR, sy-vline,
  WA_PSHLP_HIERARCHY_DRAFT_ST-UVORN, sy-vline,
  WA_PSHLP_HIERARCHY_DRAFT_ST-MLST_ZAEHL, sy-vline,
  WA_PSHLP_HIERARCHY_DRAFT_ST-AUFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSHLP_HIERARCHY_DRAFT_ST 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_PSHLP_HIERARCHY_DRAFT_ST 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_PSHLP_HIERARCHY_DRAFT_ST INTO WA_PSHLP_HIERARCHY_DRAFT_ST.


*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.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_HIERARCHY_DRAFT_ST-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_HIERARCHY_DRAFT_ST-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_HIERARCHY_DRAFT_ST-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_HIERARCHY_DRAFT_ST-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_HIERARCHY_DRAFT_ST-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_HIERARCHY_DRAFT_ST-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_HIERARCHY_DRAFT_ST-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_HIERARCHY_DRAFT_ST-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PROJ_EXT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_HIERARCHY_DRAFT_ST-PROJ_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_HIERARCHY_DRAFT_ST-PROJ_EXT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PSHLP_HIERARCHY_DRAFT_ST_STR, 
ICON TYPE STRING,
ID TYPE STRING,
PARENT TYPE STRING,
TYPE TYPE STRING,
NAME TYPE STRING,
TLEVEL TYPE STRING,
POSID TYPE STRING,
VORNR TYPE STRING,
UVORN TYPE STRING,
MLST_ZAEHL TYPE STRING,
AUFNR TYPE STRING,
PROJ_EXT TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
OBJNR TYPE STRING,
WERKS TYPE STRING,
VBUKR TYPE STRING,
PBUKR TYPE STRING,
VERNR TYPE STRING,
AUART TYPE STRING,
STEUS TYPE STRING,
STATUS_CODE TYPE STRING,
DISPLAY TYPE STRING,
CHANGE TYPE STRING,
NODE_KEY TYPE STRING,
KTEXT TYPE STRING,
POST1 TYPE STRING,
LTXA1 TYPE STRING,
ORG TYPE STRING,
CONTROL TYPE STRING,
USRFLD TYPE STRING,
CUSTFLD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSHLP_HIERARCHY_DRAFT_ST_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_PSHLP_HIERARCHY_DRAFT_ST_STR-ICON sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-ID sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-PARENT sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-TYPE sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-NAME sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-TLEVEL sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-POSID sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-VORNR sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-UVORN sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-MLST_ZAEHL sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-AUFNR sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-PROJ_EXT sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-RSNUM sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-RSPOS sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-OBJNR sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-WERKS sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-VBUKR sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-PBUKR sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-VERNR sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-AUART sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-STEUS sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-STATUS_CODE sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-DISPLAY sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-CHANGE sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-NODE_KEY sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-KTEXT sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-POST1 sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-LTXA1 sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-ORG sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-CONTROL sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-USRFLD sy-vline 
WA_PSHLP_HIERARCHY_DRAFT_ST_STR-CUSTFLD sy-vline      INTO ld_text SEPARATED BY SPACE.

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