ABAP Select data from SAP table ESO_S_PM_PLKO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESO_S_PM_PLKO
*  INTO TABLE @DATA(IT_ESO_S_PM_PLKO2).
*--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_ESO_S_PM_PLKO INDEX 1 INTO DATA(WA_ESO_S_PM_PLKO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESO_S_PM_PLKO>-PLNTY = 1.
<ESO_S_PM_PLKO>-PLNNR = 1.
<ESO_S_PM_PLKO>-PLNAL = 1.
<ESO_S_PM_PLKO>-ZAEHL = 1.
<ESO_S_PM_PLKO>-DATUV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESO_S_PM_PLKO-ZKRIZ, sy-vline,
  WA_ESO_S_PM_PLKO-EQUNR, sy-vline,
  WA_ESO_S_PM_PLKO-EQUNR_EXT, sy-vline,
  WA_ESO_S_PM_PLKO-TPLNR, sy-vline,
  WA_ESO_S_PM_PLKO-TPLNR_EXT, sy-vline,
  WA_ESO_S_PM_PLKO-AENNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESO_S_PM_PLKO 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_ESO_S_PM_PLKO 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_ESO_S_PM_PLKO INTO WA_ESO_S_PM_PLKO.


*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_ESO_S_PM_PLKO-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_PM_PLKO-PLNNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_PM_PLKO-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_PM_PLKO-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field TXTSP
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_PM_PLKO-TXTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_PM_PLKO-TXTSP.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PLNAL_EXT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_PM_PLKO-PLNAL_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_PM_PLKO-PLNAL_EXT.
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_ESO_S_PM_PLKO_STR, 
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZAEHL TYPE STRING,
DATUV TYPE STRING,
ZKRIZ TYPE STRING,
EQUNR TYPE STRING,
EQUNR_EXT TYPE STRING,
TPLNR TYPE STRING,
TPLNR_EXT TYPE STRING,
AENNR TYPE STRING,
LOEKZ TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VERWE TYPE STRING,
WERKS TYPE STRING,
STATU TYPE STRING,
VAGRP TYPE STRING,
KTEXT TYPE STRING,
TXTSP TYPE STRING,
KOKRS TYPE STRING,
STRAT TYPE STRING,
PPOOL TYPE STRING,
ISTRU TYPE STRING,
ISTRU_EXT TYPE STRING,
IWERK TYPE STRING,
ANLZU TYPE STRING,
PLNNR_EXT TYPE STRING,
PLNAL_EXT TYPE STRING,
LTXT TYPE STRING,
TASKLIST_KEY_CC TYPE STRING,
DELKZ TYPE STRING,
ARBID TYPE STRING,
ARBPL_H TYPE STRING,
WERKS2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESO_S_PM_PLKO_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_ESO_S_PM_PLKO_STR-PLNTY sy-vline 
WA_ESO_S_PM_PLKO_STR-PLNNR sy-vline 
WA_ESO_S_PM_PLKO_STR-PLNAL sy-vline 
WA_ESO_S_PM_PLKO_STR-ZAEHL sy-vline 
WA_ESO_S_PM_PLKO_STR-DATUV sy-vline 
WA_ESO_S_PM_PLKO_STR-ZKRIZ sy-vline 
WA_ESO_S_PM_PLKO_STR-EQUNR sy-vline 
WA_ESO_S_PM_PLKO_STR-EQUNR_EXT sy-vline 
WA_ESO_S_PM_PLKO_STR-TPLNR sy-vline 
WA_ESO_S_PM_PLKO_STR-TPLNR_EXT sy-vline 
WA_ESO_S_PM_PLKO_STR-AENNR sy-vline 
WA_ESO_S_PM_PLKO_STR-LOEKZ sy-vline 
WA_ESO_S_PM_PLKO_STR-ANDAT sy-vline 
WA_ESO_S_PM_PLKO_STR-ANNAM sy-vline 
WA_ESO_S_PM_PLKO_STR-AEDAT sy-vline 
WA_ESO_S_PM_PLKO_STR-AENAM sy-vline 
WA_ESO_S_PM_PLKO_STR-VERWE sy-vline 
WA_ESO_S_PM_PLKO_STR-WERKS sy-vline 
WA_ESO_S_PM_PLKO_STR-STATU sy-vline 
WA_ESO_S_PM_PLKO_STR-VAGRP sy-vline 
WA_ESO_S_PM_PLKO_STR-KTEXT sy-vline 
WA_ESO_S_PM_PLKO_STR-TXTSP sy-vline 
WA_ESO_S_PM_PLKO_STR-KOKRS sy-vline 
WA_ESO_S_PM_PLKO_STR-STRAT sy-vline 
WA_ESO_S_PM_PLKO_STR-PPOOL sy-vline 
WA_ESO_S_PM_PLKO_STR-ISTRU sy-vline 
WA_ESO_S_PM_PLKO_STR-ISTRU_EXT sy-vline 
WA_ESO_S_PM_PLKO_STR-IWERK sy-vline 
WA_ESO_S_PM_PLKO_STR-ANLZU sy-vline 
WA_ESO_S_PM_PLKO_STR-PLNNR_EXT sy-vline 
WA_ESO_S_PM_PLKO_STR-PLNAL_EXT sy-vline 
WA_ESO_S_PM_PLKO_STR-LTXT sy-vline 
WA_ESO_S_PM_PLKO_STR-TASKLIST_KEY_CC sy-vline 
WA_ESO_S_PM_PLKO_STR-DELKZ sy-vline 
WA_ESO_S_PM_PLKO_STR-ARBID sy-vline 
WA_ESO_S_PM_PLKO_STR-ARBPL_H sy-vline 
WA_ESO_S_PM_PLKO_STR-WERKS2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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