ABAP Select data from SAP table UGMD2050 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UGMD2050 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 UGMD2050. 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 UGMD2050 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_UGMD2050 TYPE STANDARD TABLE OF UGMD2050,
      WA_UGMD2050 TYPE UGMD2050,
      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: <UGMD2050> TYPE UGMD2050.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UGMD2050.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UGMD2050
  INTO TABLE IT_UGMD2050.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UGMD2050
*  INTO TABLE @DATA(IT_UGMD20502).
*--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_UGMD2050 INDEX 1 INTO DATA(WA_UGMD20502).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UGMD2050 ASSIGNING <UGMD2050>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UGMD2050>-MANDT = 1.
<UGMD2050>-INFOOBJECT = 1.
<UGMD2050>-TIMESTMP = 1.
<UGMD2050>-TYPE = 1.
<UGMD2050>-TEXTSHORT = 1.

ENDLOOP.

LOOP AT IT_UGMD2050 INTO WA_UGMD2050.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UGMD2050-TEXTLONG, sy-vline,
  WA_UGMD2050-CHABASNM, sy-vline,
  WA_UGMD2050-NOVALFL, sy-vline,
  WA_UGMD2050-TIMDEPFL, sy-vline,
  WA_UGMD2050-NOLANGU, sy-vline,
  WA_UGMD2050-TXTSHFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UGMD2050 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_UGMD2050 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_UGMD2050 INTO WA_UGMD2050.


*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 DTYPE, internal->external for field DATATP
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_UGMD2050-DATATP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UGMD2050-DATATP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field FIXUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_UGMD2050-FIXUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UGMD2050-FIXUNIT.
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_UGMD2050_STR, 
MANDT TYPE STRING,
INFOOBJECT TYPE STRING,
TIMESTMP TYPE STRING,
TYPE TYPE STRING,
TEXTSHORT TYPE STRING,
TEXTLONG TYPE STRING,
CHABASNM TYPE STRING,
NOVALFL TYPE STRING,
TIMDEPFL TYPE STRING,
NOLANGU TYPE STRING,
TXTSHFL TYPE STRING,
TXTMDFL TYPE STRING,
TXTLGFL TYPE STRING,
HIETABFL TYPE STRING,
HIEVERFL TYPE STRING,
HIENMTFL TYPE STRING,
HIENDTFL TYPE STRING,
DATATP TYPE STRING,
INTLEN TYPE STRING,
CONVEXIT TYPE STRING,
FVALEX TYPE STRING,
LOWERCASE TYPE STRING,
KYFTP TYPE STRING,
FIXCUKY TYPE STRING,
FIXUNIT TYPE STRING,
DECIMALS TYPE STRING,
UNINM TYPE STRING,
TXTTIMFL TYPE STRING,
TXTTABFL TYPE STRING,
OUTPUTLEN TYPE STRING,
ATRONLYFL TYPE STRING,
TIMESTAMP TYPE STRING,
UNAME TYPE STRING,
CHNTAB TYPE STRING,
CHTTAB TYPE STRING,
TXTTAB TYPE STRING,
AGGRGEN TYPE STRING,
AGGREXC TYPE STRING,
AGGRCHA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UGMD2050_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_UGMD2050_STR-MANDT sy-vline 
WA_UGMD2050_STR-INFOOBJECT sy-vline 
WA_UGMD2050_STR-TIMESTMP sy-vline 
WA_UGMD2050_STR-TYPE sy-vline 
WA_UGMD2050_STR-TEXTSHORT sy-vline 
WA_UGMD2050_STR-TEXTLONG sy-vline 
WA_UGMD2050_STR-CHABASNM sy-vline 
WA_UGMD2050_STR-NOVALFL sy-vline 
WA_UGMD2050_STR-TIMDEPFL sy-vline 
WA_UGMD2050_STR-NOLANGU sy-vline 
WA_UGMD2050_STR-TXTSHFL sy-vline 
WA_UGMD2050_STR-TXTMDFL sy-vline 
WA_UGMD2050_STR-TXTLGFL sy-vline 
WA_UGMD2050_STR-HIETABFL sy-vline 
WA_UGMD2050_STR-HIEVERFL sy-vline 
WA_UGMD2050_STR-HIENMTFL sy-vline 
WA_UGMD2050_STR-HIENDTFL sy-vline 
WA_UGMD2050_STR-DATATP sy-vline 
WA_UGMD2050_STR-INTLEN sy-vline 
WA_UGMD2050_STR-CONVEXIT sy-vline 
WA_UGMD2050_STR-FVALEX sy-vline 
WA_UGMD2050_STR-LOWERCASE sy-vline 
WA_UGMD2050_STR-KYFTP sy-vline 
WA_UGMD2050_STR-FIXCUKY sy-vline 
WA_UGMD2050_STR-FIXUNIT sy-vline 
WA_UGMD2050_STR-DECIMALS sy-vline 
WA_UGMD2050_STR-UNINM sy-vline 
WA_UGMD2050_STR-TXTTIMFL sy-vline 
WA_UGMD2050_STR-TXTTABFL sy-vline 
WA_UGMD2050_STR-OUTPUTLEN sy-vline 
WA_UGMD2050_STR-ATRONLYFL sy-vline 
WA_UGMD2050_STR-TIMESTAMP sy-vline 
WA_UGMD2050_STR-UNAME sy-vline 
WA_UGMD2050_STR-CHNTAB sy-vline 
WA_UGMD2050_STR-CHTTAB sy-vline 
WA_UGMD2050_STR-TXTTAB sy-vline 
WA_UGMD2050_STR-AGGRGEN sy-vline 
WA_UGMD2050_STR-AGGREXC sy-vline 
WA_UGMD2050_STR-AGGRCHA sy-vline      INTO ld_text SEPARATED BY SPACE.

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