ABAP Select data from SAP table CKMLI_QSIMP_NDEF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKMLI_QSIMP_NDEF
*  INTO TABLE @DATA(IT_CKMLI_QSIMP_NDEF2).
*--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_CKMLI_QSIMP_NDEF INDEX 1 INTO DATA(WA_CKMLI_QSIMP_NDEF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKMLI_QSIMP_NDEF>-PRWRK = 1.
<CKMLI_QSIMP_NDEF>-PLWRK = 1.
<CKMLI_QSIMP_NDEF>-PMATN = 1.
<CKMLI_QSIMP_NDEF>-VERID = 1.
<CKMLI_QSIMP_NDEF>-STLAN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKMLI_QSIMP_NDEF-STLAL, sy-vline,
  WA_CKMLI_QSIMP_NDEF-PLNTY, sy-vline,
  WA_CKMLI_QSIMP_NDEF-PLNNR, sy-vline,
  WA_CKMLI_QSIMP_NDEF-PLNAL, sy-vline,
  WA_CKMLI_QSIMP_NDEF-EKORG, sy-vline,
  WA_CKMLI_QSIMP_NDEF-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKMLI_QSIMP_NDEF 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_CKMLI_QSIMP_NDEF 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_CKMLI_QSIMP_NDEF INTO WA_CKMLI_QSIMP_NDEF.


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

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CKMLI_QSIMP_NDEF-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKMLI_QSIMP_NDEF-LIFNR.
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_CKMLI_QSIMP_NDEF_STR, 
PRWRK TYPE STRING,
PLWRK TYPE STRING,
PMATN TYPE STRING,
VERID TYPE STRING,
STLAN TYPE STRING,
STLAL TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
EKORG TYPE STRING,
LIFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKMLI_QSIMP_NDEF_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_CKMLI_QSIMP_NDEF_STR-PRWRK sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-PLWRK sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-PMATN sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-VERID sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-STLAN sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-STLAL sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-PLNTY sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-PLNNR sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-PLNAL sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-EKORG sy-vline 
WA_CKMLI_QSIMP_NDEF_STR-LIFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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