ABAP Select data from SAP table /ISDFPS/1DPERH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/1DPERH 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 /ISDFPS/1DPERH. 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 /ISDFPS/1DPERH 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_/ISDFPS/1DPERH TYPE STANDARD TABLE OF /ISDFPS/1DPERH,
      WA_/ISDFPS/1DPERH TYPE /ISDFPS/1DPERH,
      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: </ISDFPS/1DPERH> TYPE /ISDFPS/1DPERH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ISDFPS/1DPERH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/1DPERH
  INTO TABLE IT_/ISDFPS/1DPERH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/1DPERH
*  INTO TABLE @DATA(IT_/ISDFPS/1DPERH2).
*--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_/ISDFPS/1DPERH INDEX 1 INTO DATA(WA_/ISDFPS/1DPERH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/1DPERH ASSIGNING </ISDFPS/1DPERH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/1DPERH>-MANDT = 1.
</ISDFPS/1DPERH>-BELTYP = 1.
</ISDFPS/1DPERH>-BELNR = 1.
</ISDFPS/1DPERH>-STATUS = 1.
</ISDFPS/1DPERH>-VALFR = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/1DPERH INTO WA_/ISDFPS/1DPERH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/1DPERH-VALTO, sy-vline,
  WA_/ISDFPS/1DPERH-DOKAR, sy-vline,
  WA_/ISDFPS/1DPERH-DOKNR, sy-vline,
  WA_/ISDFPS/1DPERH-DOKVR, sy-vline,
  WA_/ISDFPS/1DPERH-DOKTL, sy-vline,
  WA_/ISDFPS/1DPERH-REMARK01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/1DPERH 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_/ISDFPS/1DPERH 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_/ISDFPS/1DPERH INTO WA_/ISDFPS/1DPERH.


*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 ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/1DPERH-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/1DPERH-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/1DPERH-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/1DPERH-DOKNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/1DPERH-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/1DPERH-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VHILM
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/1DPERH-VHILM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/1DPERH-VHILM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field U_DOSE_RATE_PACK
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/1DPERH-U_DOSE_RATE_PACK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/1DPERH-U_DOSE_RATE_PACK.
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_/ISDFPS/1DPERH_STR, 
MANDT TYPE STRING,
BELTYP TYPE STRING,
BELNR TYPE STRING,
STATUS TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
REMARK01 TYPE STRING,
DISPNAM TYPE STRING,
VSTEL TYPE STRING,
VSBEZ TYPE STRING,
VSALAND TYPE STRING,
VSSTREET TYPE STRING,
VSHOUSE_NUM1 TYPE STRING,
POS_CODE1 TYPE STRING,
CITY1 TYPE STRING,
KUNNR TYPE STRING,
WELAND1 TYPE STRING,
WENAME1 TYPE STRING,
WESTRAS TYPE STRING,
WEPSTLZ TYPE STRING,
WEORT01 TYPE STRING,
DG_PACKAGE_LEVEL TYPE STRING,
PACKCODE TYPE STRING,
VHILM TYPE STRING,
DOSE_RATE_PACK TYPE STRING,
U_DOSE_RATE_PACK TYPE STRING,
FLG_DAMAGED_MAT TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/1DPERH_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_/ISDFPS/1DPERH_STR-MANDT sy-vline 
WA_/ISDFPS/1DPERH_STR-BELTYP sy-vline 
WA_/ISDFPS/1DPERH_STR-BELNR sy-vline 
WA_/ISDFPS/1DPERH_STR-STATUS sy-vline 
WA_/ISDFPS/1DPERH_STR-VALFR sy-vline 
WA_/ISDFPS/1DPERH_STR-VALTO sy-vline 
WA_/ISDFPS/1DPERH_STR-DOKAR sy-vline 
WA_/ISDFPS/1DPERH_STR-DOKNR sy-vline 
WA_/ISDFPS/1DPERH_STR-DOKVR sy-vline 
WA_/ISDFPS/1DPERH_STR-DOKTL sy-vline 
WA_/ISDFPS/1DPERH_STR-REMARK01 sy-vline 
WA_/ISDFPS/1DPERH_STR-DISPNAM sy-vline 
WA_/ISDFPS/1DPERH_STR-VSTEL sy-vline 
WA_/ISDFPS/1DPERH_STR-VSBEZ sy-vline 
WA_/ISDFPS/1DPERH_STR-VSALAND sy-vline 
WA_/ISDFPS/1DPERH_STR-VSSTREET sy-vline 
WA_/ISDFPS/1DPERH_STR-VSHOUSE_NUM1 sy-vline 
WA_/ISDFPS/1DPERH_STR-POS_CODE1 sy-vline 
WA_/ISDFPS/1DPERH_STR-CITY1 sy-vline 
WA_/ISDFPS/1DPERH_STR-KUNNR sy-vline 
WA_/ISDFPS/1DPERH_STR-WELAND1 sy-vline 
WA_/ISDFPS/1DPERH_STR-WENAME1 sy-vline 
WA_/ISDFPS/1DPERH_STR-WESTRAS sy-vline 
WA_/ISDFPS/1DPERH_STR-WEPSTLZ sy-vline 
WA_/ISDFPS/1DPERH_STR-WEORT01 sy-vline 
WA_/ISDFPS/1DPERH_STR-DG_PACKAGE_LEVEL sy-vline 
WA_/ISDFPS/1DPERH_STR-PACKCODE sy-vline 
WA_/ISDFPS/1DPERH_STR-VHILM sy-vline 
WA_/ISDFPS/1DPERH_STR-DOSE_RATE_PACK sy-vline 
WA_/ISDFPS/1DPERH_STR-U_DOSE_RATE_PACK sy-vline 
WA_/ISDFPS/1DPERH_STR-FLG_DAMAGED_MAT sy-vline 
WA_/ISDFPS/1DPERH_STR-CRDAT sy-vline 
WA_/ISDFPS/1DPERH_STR-CRNAM sy-vline 
WA_/ISDFPS/1DPERH_STR-UPDDAT sy-vline 
WA_/ISDFPS/1DPERH_STR-UPDNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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