ABAP Select data from SAP table MLCCS_TS_ORDER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MLCCS_TS_ORDER
*  INTO TABLE @DATA(IT_MLCCS_TS_ORDER2).
*--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_MLCCS_TS_ORDER INDEX 1 INTO DATA(WA_MLCCS_TS_ORDER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MLCCS_TS_ORDER>-KSTART = 1.
<MLCCS_TS_ORDER>-HKGRP = 1.
<MLCCS_TS_ORDER>-USPOB = 1.
<MLCCS_TS_ORDER>-DATEI = 1.
<MLCCS_TS_ORDER>-OBART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MLCCS_TS_ORDER-KOSTL, sy-vline,
  WA_MLCCS_TS_ORDER-LSTAR, sy-vline,
  WA_MLCCS_TS_ORDER-GJAHR, sy-vline,
  WA_MLCCS_TS_ORDER-VALUTYP, sy-vline,
  WA_MLCCS_TS_ORDER-VALUTYP_BASIC, sy-vline,
  WA_MLCCS_TS_ORDER-XENTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MLCCS_TS_ORDER 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_MLCCS_TS_ORDER 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_MLCCS_TS_ORDER INTO WA_MLCCS_TS_ORDER.


*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 KSTART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MLCCS_TS_ORDER-KSTART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MLCCS_TS_ORDER-KSTART.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MLCCS_TS_ORDER-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MLCCS_TS_ORDER-MEINH.
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_MLCCS_TS_ORDER_STR, 
KSTART TYPE STRING,
HKGRP TYPE STRING,
USPOB TYPE STRING,
DATEI TYPE STRING,
OBART TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
GJAHR TYPE STRING,
VALUTYP TYPE STRING,
VALUTYP_BASIC TYPE STRING,
XENTL TYPE STRING,
VORGNG TYPE STRING,
TWAER TYPE STRING,
WTGBTR TYPE STRING,
WKGBTR TYPE STRING,
WKFBTR TYPE STRING,
WOGBTR TYPE STRING,
MEGBTR TYPE STRING,
MEINH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MLCCS_TS_ORDER_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_MLCCS_TS_ORDER_STR-KSTART sy-vline 
WA_MLCCS_TS_ORDER_STR-HKGRP sy-vline 
WA_MLCCS_TS_ORDER_STR-USPOB sy-vline 
WA_MLCCS_TS_ORDER_STR-DATEI sy-vline 
WA_MLCCS_TS_ORDER_STR-OBART sy-vline 
WA_MLCCS_TS_ORDER_STR-KOSTL sy-vline 
WA_MLCCS_TS_ORDER_STR-LSTAR sy-vline 
WA_MLCCS_TS_ORDER_STR-GJAHR sy-vline 
WA_MLCCS_TS_ORDER_STR-VALUTYP sy-vline 
WA_MLCCS_TS_ORDER_STR-VALUTYP_BASIC sy-vline 
WA_MLCCS_TS_ORDER_STR-XENTL sy-vline 
WA_MLCCS_TS_ORDER_STR-VORGNG sy-vline 
WA_MLCCS_TS_ORDER_STR-TWAER sy-vline 
WA_MLCCS_TS_ORDER_STR-WTGBTR sy-vline 
WA_MLCCS_TS_ORDER_STR-WKGBTR sy-vline 
WA_MLCCS_TS_ORDER_STR-WKFBTR sy-vline 
WA_MLCCS_TS_ORDER_STR-WOGBTR sy-vline 
WA_MLCCS_TS_ORDER_STR-MEGBTR sy-vline 
WA_MLCCS_TS_ORDER_STR-MEINH sy-vline      INTO ld_text SEPARATED BY SPACE.

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