ABAP Select data from SAP table /DSD/ME_ORDER_010_INTERN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /DSD/ME_ORDER_010_INTERN 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 /DSD/ME_ORDER_010_INTERN. 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 /DSD/ME_ORDER_010_INTERN 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_/DSD/ME_ORDER_010_INTERN TYPE STANDARD TABLE OF /DSD/ME_ORDER_010_INTERN,
      WA_/DSD/ME_ORDER_010_INTERN TYPE /DSD/ME_ORDER_010_INTERN,
      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: </DSD/ME_ORDER_010_INTERN> TYPE /DSD/ME_ORDER_010_INTERN.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/DSD/ME_ORDER_010_INTERN.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /DSD/ME_ORDER_010_INTERN
  INTO TABLE IT_/DSD/ME_ORDER_010_INTERN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /DSD/ME_ORDER_010_INTERN
*  INTO TABLE @DATA(IT_/DSD/ME_ORDER_010_INTERN2).
*--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_/DSD/ME_ORDER_010_INTERN INDEX 1 INTO DATA(WA_/DSD/ME_ORDER_010_INTERN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/DSD/ME_ORDER_010_INTERN ASSIGNING </DSD/ME_ORDER_010_INTERN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</DSD/ME_ORDER_010_INTERN>-ORD_NO = 1.
</DSD/ME_ORDER_010_INTERN>-ITM_NO = 1.
</DSD/ME_ORDER_010_INTERN>-TOUR_ID = 1.
</DSD/ME_ORDER_010_INTERN>-UEPOS = 1.
</DSD/ME_ORDER_010_INTERN>-IMP_EMPTY = 1.

ENDLOOP.

LOOP AT IT_/DSD/ME_ORDER_010_INTERN INTO WA_/DSD/ME_ORDER_010_INTERN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/DSD/ME_ORDER_010_INTERN-RTN_FLAG, sy-vline,
  WA_/DSD/ME_ORDER_010_INTERN-HH_CREATE, sy-vline,
  WA_/DSD/ME_ORDER_010_INTERN-MOD, sy-vline,
  WA_/DSD/ME_ORDER_010_INTERN-CHG_REAS, sy-vline,
  WA_/DSD/ME_ORDER_010_INTERN-MAT_NO, sy-vline,
  WA_/DSD/ME_ORDER_010_INTERN-MAT_NO_R, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/DSD/ME_ORDER_010_INTERN 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_/DSD/ME_ORDER_010_INTERN 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_/DSD/ME_ORDER_010_INTERN INTO WA_/DSD/ME_ORDER_010_INTERN.


*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 MAT_NO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/ME_ORDER_010_INTERN-MAT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/ME_ORDER_010_INTERN-MAT_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MAT_NO_R
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/DSD/ME_ORDER_010_INTERN-MAT_NO_R
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/DSD/ME_ORDER_010_INTERN-MAT_NO_R.
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_/DSD/ME_ORDER_010_INTERN_STR, 
ORD_NO TYPE STRING,
ITM_NO TYPE STRING,
TOUR_ID TYPE STRING,
UEPOS TYPE STRING,
IMP_EMPTY TYPE STRING,
RTN_FLAG TYPE STRING,
HH_CREATE TYPE STRING,
MOD TYPE STRING,
CHG_REAS TYPE STRING,
MAT_NO TYPE STRING,
MAT_NO_R TYPE STRING,
SACT_QTY TYPE STRING,
SACT_QTY_SUB TYPE STRING,
SACT_UOM TYPE STRING,
SCALE_QTY TYPE STRING,
SCALE_QTY_SUB TYPE STRING,
BILL_QTY TYPE STRING,
BILL_QTY_SUB TYPE STRING,
BILLING_FLAG TYPE STRING,
PROMO_NO TYPE STRING,
NET_PRICE TYPE STRING,
EXT_ITEM_VALUE TYPE STRING,
CURRCY TYPE STRING,
COND_TYPE TYPE STRING,
TAX TYPE STRING,
EXTFLD1 TYPE STRING,
EXTFLD2 TYPE STRING,
EXTFLD3 TYPE STRING,
EXTFLD4 TYPE STRING,
EXTFLD5 TYPE STRING,
EXTFLD6 TYPE STRING,
TAX_RATE TYPE STRING,
SPEC_RETURN TYPE STRING,
PROMO_RESULT TYPE STRING,
UNTIED_EMPTY TYPE STRING,
FREE_QTY TYPE STRING,
RESERVE_QTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/DSD/ME_ORDER_010_INTERN_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_/DSD/ME_ORDER_010_INTERN_STR-ORD_NO sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-ITM_NO sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-TOUR_ID sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-UEPOS sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-IMP_EMPTY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-RTN_FLAG sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-HH_CREATE sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-MOD sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-CHG_REAS sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-MAT_NO sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-MAT_NO_R sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-SACT_QTY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-SACT_QTY_SUB sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-SACT_UOM sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-SCALE_QTY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-SCALE_QTY_SUB sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-BILL_QTY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-BILL_QTY_SUB sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-BILLING_FLAG sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-PROMO_NO sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-NET_PRICE sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXT_ITEM_VALUE sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-CURRCY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-COND_TYPE sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-TAX sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXTFLD1 sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXTFLD2 sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXTFLD3 sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXTFLD4 sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXTFLD5 sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-EXTFLD6 sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-TAX_RATE sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-SPEC_RETURN sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-PROMO_RESULT sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-UNTIED_EMPTY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-FREE_QTY sy-vline 
WA_/DSD/ME_ORDER_010_INTERN_STR-RESERVE_QTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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