ABAP Select data from SAP table UMM_YS_CUST_DIMLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMM_YS_CUST_DIMLIST
*  INTO TABLE @DATA(IT_UMM_YS_CUST_DIMLIST2).
*--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_UMM_YS_CUST_DIMLIST INDEX 1 INTO DATA(WA_UMM_YS_CUST_DIMLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMM_YS_CUST_DIMLIST>-ICHANM = 1.
<UMM_YS_CUST_DIMLIST>-TCHANM = 1.
<UMM_YS_CUST_DIMLIST>-CHATYPE = 1.
<UMM_YS_CUST_DIMLIST>-MTXT = 1.
<UMM_YS_CUST_DIMLIST>-LTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMM_YS_CUST_DIMLIST-ICON1, sy-vline,
  WA_UMM_YS_CUST_DIMLIST-SELCON1, sy-vline,
  WA_UMM_YS_CUST_DIMLIST-FILTER1, sy-vline,
  WA_UMM_YS_CUST_DIMLIST-LTXT1, sy-vline,
  WA_UMM_YS_CUST_DIMLIST-ICHAVAL1, sy-vline,
  WA_UMM_YS_CUST_DIMLIST-ICON2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMM_YS_CUST_DIMLIST 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_UMM_YS_CUST_DIMLIST 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_UMM_YS_CUST_DIMLIST INTO WA_UMM_YS_CUST_DIMLIST.


*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_UMM_YS_CUST_DIMLIST_STR, 
ICHANM TYPE STRING,
TCHANM TYPE STRING,
CHATYPE TYPE STRING,
MTXT TYPE STRING,
LTXT TYPE STRING,
ICON1 TYPE STRING,
SELCON1 TYPE STRING,
FILTER1 TYPE STRING,
LTXT1 TYPE STRING,
ICHAVAL1 TYPE STRING,
ICON2 TYPE STRING,
SELCON2 TYPE STRING,
FILTER2 TYPE STRING,
LTXT2 TYPE STRING,
ICHAVAL2 TYPE STRING,
ICHAVAL1_EXT TYPE STRING,
ICHAVAL2_EXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMM_YS_CUST_DIMLIST_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_UMM_YS_CUST_DIMLIST_STR-ICHANM sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-TCHANM sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-CHATYPE sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-MTXT sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-LTXT sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-ICON1 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-SELCON1 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-FILTER1 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-LTXT1 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-ICHAVAL1 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-ICON2 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-SELCON2 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-FILTER2 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-LTXT2 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-ICHAVAL2 sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-ICHAVAL1_EXT sy-vline 
WA_UMM_YS_CUST_DIMLIST_STR-ICHAVAL2_EXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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