ABAP Select data from SAP table CKMLMV011H into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CKMLMV011H 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 CKMLMV011H. 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 CKMLMV011H 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_CKMLMV011H TYPE STANDARD TABLE OF CKMLMV011H,
      WA_CKMLMV011H TYPE CKMLMV011H,
      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: <CKMLMV011H> TYPE CKMLMV011H.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CKMLMV011H.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CKMLMV011H
  INTO TABLE IT_CKMLMV011H.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKMLMV011H
*  INTO TABLE @DATA(IT_CKMLMV011H2).
*--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_CKMLMV011H INDEX 1 INTO DATA(WA_CKMLMV011H2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CKMLMV011H ASSIGNING <CKMLMV011H>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKMLMV011H>-TLEVEL = 1.
<CKMLMV011H>-NAME = 1.
<CKMLMV011H>-TTYP = 1.
<CKMLMV011H>-TTEXT = 1.
<CKMLMV011H>-COUNTER = 1.

ENDLOOP.

LOOP AT IT_CKMLMV011H INTO WA_CKMLMV011H.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKMLMV011H-BWKEY, sy-vline,
  WA_CKMLMV011H-WERKS, sy-vline,
  WA_CKMLMV011H-MTART, sy-vline,
  WA_CKMLMV011H-BKLAS, sy-vline,
  WA_CKMLMV011H-MATKL, sy-vline,
  WA_CKMLMV011H-SPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKMLMV011H 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_CKMLMV011H 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_CKMLMV011H INTO WA_CKMLMV011H.


*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_CKMLMV011H_STR, 
TLEVEL TYPE STRING,
NAME TYPE STRING,
TTYP TYPE STRING,
TTEXT TYPE STRING,
COUNTER TYPE STRING,
BWKEY TYPE STRING,
WERKS TYPE STRING,
MTART TYPE STRING,
BKLAS TYPE STRING,
MATKL TYPE STRING,
SPART TYPE STRING,
HRKFT TYPE STRING,
KALST TYPE STRING,
CYCLENR TYPE STRING,
KALST_USED TYPE STRING,
CYCLENR_USED TYPE STRING,
EINSTUFIG_GRUEN TYPE STRING,
EINSTUFIG_ROT TYPE STRING,
EINSTUFIG_KREUZ TYPE STRING,
MEHRSTUFIG_GRUEN TYPE STRING,
MEHRSTUFIG_ROT TYPE STRING,
MEHRSTUFIG_KREUZ TYPE STRING,
MEHRSTUFIG_MINUS TYPE STRING,
ABSCHLUSS_GRUEN TYPE STRING,
ABSCHLUSS_ROT TYPE STRING,
ABSCHLUSS_KREUZ TYPE STRING,
KUMULIERT_GRUEN TYPE STRING,
KUMULIERT_ROT TYPE STRING,
KUMULIERT_KREUZ TYPE STRING,
EINSTUFIG_ICON TYPE STRING,
MEHRSTUFIG_ICON TYPE STRING,
ABSCHLUSS_ICON TYPE STRING,
KUMULIERT_ICON TYPE STRING,
WIP_ICON TYPE STRING,
VNB_ICON TYPE STRING,
WIP_GRUEN TYPE STRING,
WIP_ROT TYPE STRING,
WIP_KREUZ TYPE STRING,
VNB_GRUEN TYPE STRING,
VNB_ROT TYPE STRING,
VNB_KREUZ TYPE STRING,
WIP_MINUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKMLMV011H_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_CKMLMV011H_STR-TLEVEL sy-vline 
WA_CKMLMV011H_STR-NAME sy-vline 
WA_CKMLMV011H_STR-TTYP sy-vline 
WA_CKMLMV011H_STR-TTEXT sy-vline 
WA_CKMLMV011H_STR-COUNTER sy-vline 
WA_CKMLMV011H_STR-BWKEY sy-vline 
WA_CKMLMV011H_STR-WERKS sy-vline 
WA_CKMLMV011H_STR-MTART sy-vline 
WA_CKMLMV011H_STR-BKLAS sy-vline 
WA_CKMLMV011H_STR-MATKL sy-vline 
WA_CKMLMV011H_STR-SPART sy-vline 
WA_CKMLMV011H_STR-HRKFT sy-vline 
WA_CKMLMV011H_STR-KALST sy-vline 
WA_CKMLMV011H_STR-CYCLENR sy-vline 
WA_CKMLMV011H_STR-KALST_USED sy-vline 
WA_CKMLMV011H_STR-CYCLENR_USED sy-vline 
WA_CKMLMV011H_STR-EINSTUFIG_GRUEN sy-vline 
WA_CKMLMV011H_STR-EINSTUFIG_ROT sy-vline 
WA_CKMLMV011H_STR-EINSTUFIG_KREUZ sy-vline 
WA_CKMLMV011H_STR-MEHRSTUFIG_GRUEN sy-vline 
WA_CKMLMV011H_STR-MEHRSTUFIG_ROT sy-vline 
WA_CKMLMV011H_STR-MEHRSTUFIG_KREUZ sy-vline 
WA_CKMLMV011H_STR-MEHRSTUFIG_MINUS sy-vline 
WA_CKMLMV011H_STR-ABSCHLUSS_GRUEN sy-vline 
WA_CKMLMV011H_STR-ABSCHLUSS_ROT sy-vline 
WA_CKMLMV011H_STR-ABSCHLUSS_KREUZ sy-vline 
WA_CKMLMV011H_STR-KUMULIERT_GRUEN sy-vline 
WA_CKMLMV011H_STR-KUMULIERT_ROT sy-vline 
WA_CKMLMV011H_STR-KUMULIERT_KREUZ sy-vline 
WA_CKMLMV011H_STR-EINSTUFIG_ICON sy-vline 
WA_CKMLMV011H_STR-MEHRSTUFIG_ICON sy-vline 
WA_CKMLMV011H_STR-ABSCHLUSS_ICON sy-vline 
WA_CKMLMV011H_STR-KUMULIERT_ICON sy-vline 
WA_CKMLMV011H_STR-WIP_ICON sy-vline 
WA_CKMLMV011H_STR-VNB_ICON sy-vline 
WA_CKMLMV011H_STR-WIP_GRUEN sy-vline 
WA_CKMLMV011H_STR-WIP_ROT sy-vline 
WA_CKMLMV011H_STR-WIP_KREUZ sy-vline 
WA_CKMLMV011H_STR-VNB_GRUEN sy-vline 
WA_CKMLMV011H_STR-VNB_ROT sy-vline 
WA_CKMLMV011H_STR-VNB_KREUZ sy-vline 
WA_CKMLMV011H_STR-WIP_MINUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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