ABAP Select data from SAP table PSKRZ_Z into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSKRZ_Z
*  INTO TABLE @DATA(IT_PSKRZ_Z2).
*--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_PSKRZ_Z INDEX 1 INTO DATA(WA_PSKRZ_Z2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSKRZ_Z>-PERNR = 1.
<PSKRZ_Z>-ROK = 1.
<PSKRZ_Z>-ZIAD_ZUCT = 1.
<PSKRZ_Z>-ZIAD_DOKL = 1.
<PSKRZ_Z>-PRIEZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSKRZ_Z-MENO, sy-vline,
  WA_PSKRZ_Z-TITUL, sy-vline,
  WA_PSKRZ_Z-RC, sy-vline,
  WA_PSKRZ_Z-C_POBYT, sy-vline,
  WA_PSKRZ_Z-ZPKOD, sy-vline,
  WA_PSKRZ_Z-ULICA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSKRZ_Z 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_PSKRZ_Z 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_PSKRZ_Z INTO WA_PSKRZ_Z.


*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_PSKRZ_Z_STR, 
PERNR TYPE STRING,
ROK TYPE STRING,
ZIAD_ZUCT TYPE STRING,
ZIAD_DOKL TYPE STRING,
PRIEZ TYPE STRING,
MENO TYPE STRING,
TITUL TYPE STRING,
RC TYPE STRING,
C_POBYT TYPE STRING,
ZPKOD TYPE STRING,
ULICA TYPE STRING,
C_ORI TYPE STRING,
C_SUP TYPE STRING,
PSC TYPE STRING,
OBEC TYPE STRING,
STAT TYPE STRING,
ZL_NAZOV TYPE STRING,
ZL_C_PP TYPE STRING,
ZL_RC TYPE STRING,
ZL_C_POBYT TYPE STRING,
ZL_ICO TYPE STRING,
ZL_DIC TYPE STRING,
ZL_ULICA TYPE STRING,
ZL_C_ORI TYPE STRING,
ZL_C_SUP TYPE STRING,
ZL_PSC TYPE STRING,
ZL_OBEC TYPE STRING,
ZL_TELEFON TYPE STRING,
ZL_FAX TYPE STRING,
ZL_EMAIL TYPE STRING,
ZIADAM1 TYPE STRING,
POC_ZL TYPE STRING,
ZIADAM2 TYPE STRING,
V_MIESTE TYPE STRING,
DNA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSKRZ_Z_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_PSKRZ_Z_STR-PERNR sy-vline 
WA_PSKRZ_Z_STR-ROK sy-vline 
WA_PSKRZ_Z_STR-ZIAD_ZUCT sy-vline 
WA_PSKRZ_Z_STR-ZIAD_DOKL sy-vline 
WA_PSKRZ_Z_STR-PRIEZ sy-vline 
WA_PSKRZ_Z_STR-MENO sy-vline 
WA_PSKRZ_Z_STR-TITUL sy-vline 
WA_PSKRZ_Z_STR-RC sy-vline 
WA_PSKRZ_Z_STR-C_POBYT sy-vline 
WA_PSKRZ_Z_STR-ZPKOD sy-vline 
WA_PSKRZ_Z_STR-ULICA sy-vline 
WA_PSKRZ_Z_STR-C_ORI sy-vline 
WA_PSKRZ_Z_STR-C_SUP sy-vline 
WA_PSKRZ_Z_STR-PSC sy-vline 
WA_PSKRZ_Z_STR-OBEC sy-vline 
WA_PSKRZ_Z_STR-STAT sy-vline 
WA_PSKRZ_Z_STR-ZL_NAZOV sy-vline 
WA_PSKRZ_Z_STR-ZL_C_PP sy-vline 
WA_PSKRZ_Z_STR-ZL_RC sy-vline 
WA_PSKRZ_Z_STR-ZL_C_POBYT sy-vline 
WA_PSKRZ_Z_STR-ZL_ICO sy-vline 
WA_PSKRZ_Z_STR-ZL_DIC sy-vline 
WA_PSKRZ_Z_STR-ZL_ULICA sy-vline 
WA_PSKRZ_Z_STR-ZL_C_ORI sy-vline 
WA_PSKRZ_Z_STR-ZL_C_SUP sy-vline 
WA_PSKRZ_Z_STR-ZL_PSC sy-vline 
WA_PSKRZ_Z_STR-ZL_OBEC sy-vline 
WA_PSKRZ_Z_STR-ZL_TELEFON sy-vline 
WA_PSKRZ_Z_STR-ZL_FAX sy-vline 
WA_PSKRZ_Z_STR-ZL_EMAIL sy-vline 
WA_PSKRZ_Z_STR-ZIADAM1 sy-vline 
WA_PSKRZ_Z_STR-POC_ZL sy-vline 
WA_PSKRZ_Z_STR-ZIADAM2 sy-vline 
WA_PSKRZ_Z_STR-V_MIESTE sy-vline 
WA_PSKRZ_Z_STR-DNA sy-vline      INTO ld_text SEPARATED BY SPACE.

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