ABAP Select data from SAP table DMC_MDS_UVERS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DMC_MDS_UVERS
*  INTO TABLE @DATA(IT_DMC_MDS_UVERS2).
*--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_DMC_MDS_UVERS INDEX 1 INTO DATA(WA_DMC_MDS_UVERS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DMC_MDS_UVERS>-VERSION = 1.
<DMC_MDS_UVERS>-COMPONENT = 1.
<DMC_MDS_UVERS>-NEWRELEASE = 1.
<DMC_MDS_UVERS>-STARTDATE = 1.
<DMC_MDS_UVERS>-STARTTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DMC_MDS_UVERS-ENDDATE, sy-vline,
  WA_DMC_MDS_UVERS-ENDTIME, sy-vline,
  WA_DMC_MDS_UVERS-PUTSTATUS, sy-vline,
  WA_DMC_MDS_UVERS-PUTTYPE, sy-vline,
  WA_DMC_MDS_UVERS-PUTMASTER, sy-vline,
  WA_DMC_MDS_UVERS-OLDRELEASE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DMC_MDS_UVERS 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_DMC_MDS_UVERS 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_DMC_MDS_UVERS INTO WA_DMC_MDS_UVERS.


*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_DMC_MDS_UVERS_STR, 
VERSION TYPE STRING,
COMPONENT TYPE STRING,
NEWRELEASE TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
ENDDATE TYPE STRING,
ENDTIME TYPE STRING,
PUTSTATUS TYPE STRING,
PUTTYPE TYPE STRING,
PUTMASTER TYPE STRING,
OLDRELEASE TYPE STRING,
MODEA01 TYPE STRING,
MODEB01 TYPE STRING,
MODEA10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DMC_MDS_UVERS_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_DMC_MDS_UVERS_STR-VERSION sy-vline 
WA_DMC_MDS_UVERS_STR-COMPONENT sy-vline 
WA_DMC_MDS_UVERS_STR-NEWRELEASE sy-vline 
WA_DMC_MDS_UVERS_STR-STARTDATE sy-vline 
WA_DMC_MDS_UVERS_STR-STARTTIME sy-vline 
WA_DMC_MDS_UVERS_STR-ENDDATE sy-vline 
WA_DMC_MDS_UVERS_STR-ENDTIME sy-vline 
WA_DMC_MDS_UVERS_STR-PUTSTATUS sy-vline 
WA_DMC_MDS_UVERS_STR-PUTTYPE sy-vline 
WA_DMC_MDS_UVERS_STR-PUTMASTER sy-vline 
WA_DMC_MDS_UVERS_STR-OLDRELEASE sy-vline 
WA_DMC_MDS_UVERS_STR-MODEA01 sy-vline 
WA_DMC_MDS_UVERS_STR-MODEB01 sy-vline 
WA_DMC_MDS_UVERS_STR-MODEA10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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