ABAP Select data from SAP table E1PLMKP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1PLMKP 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 E1PLMKP. 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 E1PLMKP 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_E1PLMKP TYPE STANDARD TABLE OF E1PLMKP,
      WA_E1PLMKP TYPE E1PLMKP,
      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: <E1PLMKP> TYPE E1PLMKP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1PLMKP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1PLMKP
  INTO TABLE IT_E1PLMKP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1PLMKP
*  INTO TABLE @DATA(IT_E1PLMKP2).
*--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_E1PLMKP INDEX 1 INTO DATA(WA_E1PLMKP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1PLMKP ASSIGNING <E1PLMKP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1PLMKP>-KZEINSTELL = 1.
<E1PLMKP>-MERKNR = 1.
<E1PLMKP>-LOEKZ = 1.
<E1PLMKP>-STEUERKZ = 1.
<E1PLMKP>-PMETHODE = 1.

ENDLOOP.

LOOP AT IT_E1PLMKP INTO WA_E1PLMKP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1PLMKP-PMTVERSION, sy-vline,
  WA_E1PLMKP-VERWMERKM, sy-vline,
  WA_E1PLMKP-MKVERSION, sy-vline,
  WA_E1PLMKP-KURZTEXT, sy-vline,
  WA_E1PLMKP-LTEXTSPR, sy-vline,
  WA_E1PLMKP-STELLEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1PLMKP 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_E1PLMKP 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_E1PLMKP INTO WA_E1PLMKP.


*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_E1PLMKP_STR, 
KZEINSTELL TYPE STRING,
MERKNR TYPE STRING,
LOEKZ TYPE STRING,
STEUERKZ TYPE STRING,
PMETHODE TYPE STRING,
PMTVERSION TYPE STRING,
VERWMERKM TYPE STRING,
MKVERSION TYPE STRING,
KURZTEXT TYPE STRING,
LTEXTSPR TYPE STRING,
STELLEN TYPE STRING,
MASSEINHSW TYPE STRING,
SOLLWERT TYPE STRING,
TOLERANZOB TYPE STRING,
TOLERANZUN TYPE STRING,
PLAUSIOBEN TYPE STRING,
PLAUSIUNTE TYPE STRING,
STICHPRVER TYPE STRING,
VERSN TYPE STRING,
VERSN_SOURCE TYPE STRING,
VERSN_SOURCE_PLNKN TYPE STRING,
VERSN_SOURCE_MERKNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1PLMKP_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_E1PLMKP_STR-KZEINSTELL sy-vline 
WA_E1PLMKP_STR-MERKNR sy-vline 
WA_E1PLMKP_STR-LOEKZ sy-vline 
WA_E1PLMKP_STR-STEUERKZ sy-vline 
WA_E1PLMKP_STR-PMETHODE sy-vline 
WA_E1PLMKP_STR-PMTVERSION sy-vline 
WA_E1PLMKP_STR-VERWMERKM sy-vline 
WA_E1PLMKP_STR-MKVERSION sy-vline 
WA_E1PLMKP_STR-KURZTEXT sy-vline 
WA_E1PLMKP_STR-LTEXTSPR sy-vline 
WA_E1PLMKP_STR-STELLEN sy-vline 
WA_E1PLMKP_STR-MASSEINHSW sy-vline 
WA_E1PLMKP_STR-SOLLWERT sy-vline 
WA_E1PLMKP_STR-TOLERANZOB sy-vline 
WA_E1PLMKP_STR-TOLERANZUN sy-vline 
WA_E1PLMKP_STR-PLAUSIOBEN sy-vline 
WA_E1PLMKP_STR-PLAUSIUNTE sy-vline 
WA_E1PLMKP_STR-STICHPRVER sy-vline 
WA_E1PLMKP_STR-VERSN sy-vline 
WA_E1PLMKP_STR-VERSN_SOURCE sy-vline 
WA_E1PLMKP_STR-VERSN_SOURCE_PLNKN sy-vline 
WA_E1PLMKP_STR-VERSN_SOURCE_MERKNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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