ABAP Select data from SAP table UMD04 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UMD04 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 UMD04. 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 UMD04 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_UMD04 TYPE STANDARD TABLE OF UMD04,
      WA_UMD04 TYPE UMD04,
      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: <UMD04> TYPE UMD04.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UMD04.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UMD04
  INTO TABLE IT_UMD04.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMD04
*  INTO TABLE @DATA(IT_UMD042).
*--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_UMD04 INDEX 1 INTO DATA(WA_UMD042).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UMD04 ASSIGNING <UMD04>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMD04>-MANDT = 1.
<UMD04>-UNAME = 1.
<UMD04>-MDAKT = 1.
<UMD04>-NETPL = 1.
<UMD04>-BRTPL = 1.

ENDLOOP.

LOOP AT IT_UMD04 INTO WA_UMD04.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMD04-LGOR1, sy-vline,
  WA_UMD04-LGOR2, sy-vline,
  WA_UMD04-KNDPL, sy-vline,
  WA_UMD04-PROPL, sy-vline,
  WA_UMD04-MSTPL, sy-vline,
  WA_UMD04-VORPL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMD04 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_UMD04 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_UMD04 INTO WA_UMD04.


*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_UMD04_STR, 
MANDT TYPE STRING,
UNAME TYPE STRING,
MDAKT TYPE STRING,
NETPL TYPE STRING,
BRTPL TYPE STRING,
LGOR1 TYPE STRING,
LGOR2 TYPE STRING,
KNDPL TYPE STRING,
PROPL TYPE STRING,
MSTPL TYPE STRING,
VORPL TYPE STRING,
LELIW TYPE STRING,
ONLRQ TYPE STRING,
ANZKA TYPE STRING,
KPFLG TYPE STRING,
ERWMD TYPE STRING,
SELH1 TYPE STRING,
SELH2 TYPE STRING,
SKBED TYPE STRING,
SKVER TYPE STRING,
SKREI TYPE STRING,
SKAND TYPE STRING,
SKNZU TYPE STRING,
SKVPB TYPE STRING,
SKSUZ TYPE STRING,
SKSUB TYPE STRING,
SKPRD TYPE STRING,
SKSZU TYPE STRING,
SKLFP TYPE STRING,
SKREW TYPE STRING,
MATSK TYPE STRING,
LINSK TYPE STRING,
PERIO TYPE STRING,
PRDPL TYPE STRING,
PATVR TYPE STRING,
ABBED TYPE STRING,
ABVER TYPE STRING,
ABREI TYPE STRING,
ABAND TYPE STRING,
ABNZU TYPE STRING,
ABVPB TYPE STRING,
ABSUZ TYPE STRING,
ABSUB TYPE STRING,
ABUEZ TYPE STRING,
ABSZU TYPE STRING,
ABLFP TYPE STRING,
SKTPT TYPE STRING,
SVIEW TYPE STRING,
PFEXL TYPE STRING,
TEEKZ TYPE STRING,
SMEKZ TYPE STRING,
DSTRI TYPE STRING,
DSPHZ TYPE STRING,
ABKOM TYPE STRING,
SKUE1 TYPE STRING,
ABUE2 TYPE STRING,
SKUE2 TYPE STRING,
ABUE3 TYPE STRING,
SKUE3 TYPE STRING,
JVIEW TYPE STRING,
DETLI TYPE STRING,
DETDI TYPE STRING,
TABST TYPE STRING,
DAYDE TYPE STRING,
COLTX TYPE STRING,
COLMA TYPE STRING,
ERGBZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMD04_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_UMD04_STR-MANDT sy-vline 
WA_UMD04_STR-UNAME sy-vline 
WA_UMD04_STR-MDAKT sy-vline 
WA_UMD04_STR-NETPL sy-vline 
WA_UMD04_STR-BRTPL sy-vline 
WA_UMD04_STR-LGOR1 sy-vline 
WA_UMD04_STR-LGOR2 sy-vline 
WA_UMD04_STR-KNDPL sy-vline 
WA_UMD04_STR-PROPL sy-vline 
WA_UMD04_STR-MSTPL sy-vline 
WA_UMD04_STR-VORPL sy-vline 
WA_UMD04_STR-LELIW sy-vline 
WA_UMD04_STR-ONLRQ sy-vline 
WA_UMD04_STR-ANZKA sy-vline 
WA_UMD04_STR-KPFLG sy-vline 
WA_UMD04_STR-ERWMD sy-vline 
WA_UMD04_STR-SELH1 sy-vline 
WA_UMD04_STR-SELH2 sy-vline 
WA_UMD04_STR-SKBED sy-vline 
WA_UMD04_STR-SKVER sy-vline 
WA_UMD04_STR-SKREI sy-vline 
WA_UMD04_STR-SKAND sy-vline 
WA_UMD04_STR-SKNZU sy-vline 
WA_UMD04_STR-SKVPB sy-vline 
WA_UMD04_STR-SKSUZ sy-vline 
WA_UMD04_STR-SKSUB sy-vline 
WA_UMD04_STR-SKPRD sy-vline 
WA_UMD04_STR-SKSZU sy-vline 
WA_UMD04_STR-SKLFP sy-vline 
WA_UMD04_STR-SKREW sy-vline 
WA_UMD04_STR-MATSK sy-vline 
WA_UMD04_STR-LINSK sy-vline 
WA_UMD04_STR-PERIO sy-vline 
WA_UMD04_STR-PRDPL sy-vline 
WA_UMD04_STR-PATVR sy-vline 
WA_UMD04_STR-ABBED sy-vline 
WA_UMD04_STR-ABVER sy-vline 
WA_UMD04_STR-ABREI sy-vline 
WA_UMD04_STR-ABAND sy-vline 
WA_UMD04_STR-ABNZU sy-vline 
WA_UMD04_STR-ABVPB sy-vline 
WA_UMD04_STR-ABSUZ sy-vline 
WA_UMD04_STR-ABSUB sy-vline 
WA_UMD04_STR-ABUEZ sy-vline 
WA_UMD04_STR-ABSZU sy-vline 
WA_UMD04_STR-ABLFP sy-vline 
WA_UMD04_STR-SKTPT sy-vline 
WA_UMD04_STR-SVIEW sy-vline 
WA_UMD04_STR-PFEXL sy-vline 
WA_UMD04_STR-TEEKZ sy-vline 
WA_UMD04_STR-SMEKZ sy-vline 
WA_UMD04_STR-DSTRI sy-vline 
WA_UMD04_STR-DSPHZ sy-vline 
WA_UMD04_STR-ABKOM sy-vline 
WA_UMD04_STR-SKUE1 sy-vline 
WA_UMD04_STR-ABUE2 sy-vline 
WA_UMD04_STR-SKUE2 sy-vline 
WA_UMD04_STR-ABUE3 sy-vline 
WA_UMD04_STR-SKUE3 sy-vline 
WA_UMD04_STR-JVIEW sy-vline 
WA_UMD04_STR-DETLI sy-vline 
WA_UMD04_STR-DETDI sy-vline 
WA_UMD04_STR-TABST sy-vline 
WA_UMD04_STR-DAYDE sy-vline 
WA_UMD04_STR-COLTX sy-vline 
WA_UMD04_STR-COLMA sy-vline 
WA_UMD04_STR-ERGBZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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