ABAP Select data from SAP table /ISDFPS/TLUPS_PLKZ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/TLUPS_PLKZ
*  INTO TABLE @DATA(IT_/ISDFPS/TLUPS_PLKZ2).
*--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/TLUPS_PLKZ INDEX 1 INTO DATA(WA_/ISDFPS/TLUPS_PLKZ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/TLUPS_PLKZ>-MANDT = 1.
</ISDFPS/TLUPS_PLKZ>-PLNTY = 1.
</ISDFPS/TLUPS_PLKZ>-PLNNR = 1.
</ISDFPS/TLUPS_PLKZ>-PLNAL = 1.
</ISDFPS/TLUPS_PLKZ>-ABDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/TLUPS_PLKZ-ABANZ, sy-vline,
  WA_/ISDFPS/TLUPS_PLKZ-AEDAT, sy-vline,
  WA_/ISDFPS/TLUPS_PLKZ-AEUZEIT, sy-vline,
  WA_/ISDFPS/TLUPS_PLKZ-AENAM, sy-vline,
  WA_/ISDFPS/TLUPS_PLKZ-DELKZ, sy-vline,
  WA_/ISDFPS/TLUPS_PLKZ-STAUFG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/TLUPS_PLKZ 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/TLUPS_PLKZ 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/TLUPS_PLKZ INTO WA_/ISDFPS/TLUPS_PLKZ.


*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 PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/TLUPS_PLKZ-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/TLUPS_PLKZ-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/TLUPS_PLKZ-PLNAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/TLUPS_PLKZ-PLNAL.
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/TLUPS_PLKZ_STR, 
MANDT TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ABDAT TYPE STRING,
ABANZ TYPE STRING,
AEDAT TYPE STRING,
AEUZEIT TYPE STRING,
AENAM TYPE STRING,
DELKZ TYPE STRING,
STAUFG TYPE STRING,
FLG_ECM TYPE STRING,
FLG_ECM_PAR TYPE STRING,
SUBTYPE TYPE STRING,
ALTEXT TYPE STRING,
REWORK TYPE STRING,
RELAXED TYPE STRING,
EXECUTION_IN_ME TYPE STRING,
REFERENCE_TEMPLATE_TYPE TYPE STRING,
REFERENCE_TEMPLATE_CATEGORY TYPE STRING,
REFERENCE_TEMPLATE_OWNER TYPE STRING,
ERP_INTEGRATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/TLUPS_PLKZ_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/TLUPS_PLKZ_STR-MANDT sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-PLNTY sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-PLNNR sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-PLNAL sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-ABDAT sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-ABANZ sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-AEDAT sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-AEUZEIT sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-AENAM sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-DELKZ sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-STAUFG sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-FLG_ECM sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-FLG_ECM_PAR sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-SUBTYPE sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-ALTEXT sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-REWORK sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-RELAXED sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-EXECUTION_IN_ME sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-REFERENCE_TEMPLATE_TYPE sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-REFERENCE_TEMPLATE_CATEGORY sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-REFERENCE_TEMPLATE_OWNER sy-vline 
WA_/ISDFPS/TLUPS_PLKZ_STR-ERP_INTEGRATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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