ABAP Select data from SAP table PSKRL_ZC_DOP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSKRL_ZC_DOP
*  INTO TABLE @DATA(IT_PSKRL_ZC_DOP2).
*--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_PSKRL_ZC_DOP INDEX 1 INTO DATA(WA_PSKRL_ZC_DOP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSKRL_ZC_DOP>-RODPR = 1.
<PSKRL_ZC_DOP>-DATNA = 1.
<PSKRL_ZC_DOP>-MIENA = 1.
<PSKRL_ZC_DOP>-STATP = 1.
<PSKRL_ZC_DOP>-STATNARODENIA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSKRL_ZC_DOP-CUDZINEC, sy-vline,
  WA_PSKRL_ZC_DOP-RODST, sy-vline,
  WA_PSKRL_ZC_DOP-TYPDO, sy-vline,
  WA_PSKRL_ZC_DOP-DATDO, sy-vline,
  WA_PSKRL_ZC_DOP-DATUK, sy-vline,
  WA_PSKRL_ZC_DOP-DATSP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSKRL_ZC_DOP 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_PSKRL_ZC_DOP 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_PSKRL_ZC_DOP INTO WA_PSKRL_ZC_DOP.


*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 PDATE, internal->external for field DATNA
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PSKRL_ZC_DOP-DATNA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSKRL_ZC_DOP-DATNA.
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_PSKRL_ZC_DOP_STR, 
RODPR TYPE STRING,
DATNA TYPE STRING,
MIENA TYPE STRING,
STATP TYPE STRING,
STATNARODENIA TYPE STRING,
CUDZINEC TYPE STRING,
RODST TYPE STRING,
TYPDO TYPE STRING,
DATDO TYPE STRING,
DATUK TYPE STRING,
DATSP TYPE STRING,
RODCI TYPE STRING,
ICPV TYPE STRING,
DOHOD TYPE STRING,
CPP TYPE STRING,
SSNST TYPE STRING,
TYPZEC TYPE STRING,
TYDOC TYPE STRING,
ZADOC TYPE STRING,
DOVDP TYPE STRING,
POMER TYPE STRING,
SUCAS TYPE STRING,
PA7O2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSKRL_ZC_DOP_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_PSKRL_ZC_DOP_STR-RODPR sy-vline 
WA_PSKRL_ZC_DOP_STR-DATNA sy-vline 
WA_PSKRL_ZC_DOP_STR-MIENA sy-vline 
WA_PSKRL_ZC_DOP_STR-STATP sy-vline 
WA_PSKRL_ZC_DOP_STR-STATNARODENIA sy-vline 
WA_PSKRL_ZC_DOP_STR-CUDZINEC sy-vline 
WA_PSKRL_ZC_DOP_STR-RODST sy-vline 
WA_PSKRL_ZC_DOP_STR-TYPDO sy-vline 
WA_PSKRL_ZC_DOP_STR-DATDO sy-vline 
WA_PSKRL_ZC_DOP_STR-DATUK sy-vline 
WA_PSKRL_ZC_DOP_STR-DATSP sy-vline 
WA_PSKRL_ZC_DOP_STR-RODCI sy-vline 
WA_PSKRL_ZC_DOP_STR-ICPV sy-vline 
WA_PSKRL_ZC_DOP_STR-DOHOD sy-vline 
WA_PSKRL_ZC_DOP_STR-CPP sy-vline 
WA_PSKRL_ZC_DOP_STR-SSNST sy-vline 
WA_PSKRL_ZC_DOP_STR-TYPZEC sy-vline 
WA_PSKRL_ZC_DOP_STR-TYDOC sy-vline 
WA_PSKRL_ZC_DOP_STR-ZADOC sy-vline 
WA_PSKRL_ZC_DOP_STR-DOVDP sy-vline 
WA_PSKRL_ZC_DOP_STR-POMER sy-vline 
WA_PSKRL_ZC_DOP_STR-SUCAS sy-vline 
WA_PSKRL_ZC_DOP_STR-PA7O2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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