ABAP Select data from SAP table PSKRZD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSKRZD
*  INTO TABLE @DATA(IT_PSKRZD2).
*--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_PSKRZD INDEX 1 INTO DATA(WA_PSKRZD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSKRZD>-PRIJEM = 1.
<PSKRZD>-DOHODA = 1.
<PSKRZD>-SOCIAP = 1.
<PSKRZD>-ZDRAVP = 1.
<PSKRZD>-NEZCD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSKRZD-NEZCM, sy-vline,
  WA_PSKRZD-ZPMES, sy-vline,
  WA_PSKRZD-ZPREMIA, sy-vline,
  WA_PSKRZD-DBONUS, sy-vline,
  WA_PSKRZD-DBMES, sy-vline,
  WA_PSKRZD-DETIP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSKRZD 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_PSKRZD 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_PSKRZD INTO WA_PSKRZD.


*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_PSKRZD_STR, 
PRIJEM TYPE STRING,
DOHODA TYPE STRING,
SOCIAP TYPE STRING,
ZDRAVP TYPE STRING,
NEZCD TYPE STRING,
NEZCM TYPE STRING,
ZPMES TYPE STRING,
ZPREMIA TYPE STRING,
DBONUS TYPE STRING,
DBMES TYPE STRING,
DETIP TYPE STRING,
DANZP TYPE STRING,
DANRZD TYPE STRING,
OBDOBIE TYPE STRING,
AUX_BETRG01 TYPE STRING,
AUX_BETRG02 TYPE STRING,
AUX_BETRG03 TYPE STRING,
AUX_BETRG04 TYPE STRING,
AUX_BETRG05 TYPE STRING,
AUX_BETRG06 TYPE STRING,
AUX_BETRG07 TYPE STRING,
AUX_BETRG08 TYPE STRING,
AUX_BETRG09 TYPE STRING,
AUX_BETRG10 TYPE STRING,
CURR TYPE STRING,
BATH TYPE STRING,
BONUR TYPE STRING,
BATH_OTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSKRZD_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_PSKRZD_STR-PRIJEM sy-vline 
WA_PSKRZD_STR-DOHODA sy-vline 
WA_PSKRZD_STR-SOCIAP sy-vline 
WA_PSKRZD_STR-ZDRAVP sy-vline 
WA_PSKRZD_STR-NEZCD sy-vline 
WA_PSKRZD_STR-NEZCM sy-vline 
WA_PSKRZD_STR-ZPMES sy-vline 
WA_PSKRZD_STR-ZPREMIA sy-vline 
WA_PSKRZD_STR-DBONUS sy-vline 
WA_PSKRZD_STR-DBMES sy-vline 
WA_PSKRZD_STR-DETIP sy-vline 
WA_PSKRZD_STR-DANZP sy-vline 
WA_PSKRZD_STR-DANRZD sy-vline 
WA_PSKRZD_STR-OBDOBIE sy-vline 
WA_PSKRZD_STR-AUX_BETRG01 sy-vline 
WA_PSKRZD_STR-AUX_BETRG02 sy-vline 
WA_PSKRZD_STR-AUX_BETRG03 sy-vline 
WA_PSKRZD_STR-AUX_BETRG04 sy-vline 
WA_PSKRZD_STR-AUX_BETRG05 sy-vline 
WA_PSKRZD_STR-AUX_BETRG06 sy-vline 
WA_PSKRZD_STR-AUX_BETRG07 sy-vline 
WA_PSKRZD_STR-AUX_BETRG08 sy-vline 
WA_PSKRZD_STR-AUX_BETRG09 sy-vline 
WA_PSKRZD_STR-AUX_BETRG10 sy-vline 
WA_PSKRZD_STR-CURR sy-vline 
WA_PSKRZD_STR-BATH sy-vline 
WA_PSKRZD_STR-BONUR sy-vline 
WA_PSKRZD_STR-BATH_OTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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