ABAP Select data from SAP table MDG_S_T1_UT_EDTN_BUSPART into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MDG_S_T1_UT_EDTN_BUSPART 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 MDG_S_T1_UT_EDTN_BUSPART. 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 MDG_S_T1_UT_EDTN_BUSPART 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_MDG_S_T1_UT_EDTN_BUSPART TYPE STANDARD TABLE OF MDG_S_T1_UT_EDTN_BUSPART,
      WA_MDG_S_T1_UT_EDTN_BUSPART TYPE MDG_S_T1_UT_EDTN_BUSPART,
      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: <MDG_S_T1_UT_EDTN_BUSPART> TYPE MDG_S_T1_UT_EDTN_BUSPART.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MDG_S_T1_UT_EDTN_BUSPART.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MDG_S_T1_UT_EDTN_BUSPART
  INTO TABLE IT_MDG_S_T1_UT_EDTN_BUSPART.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDG_S_T1_UT_EDTN_BUSPART
*  INTO TABLE @DATA(IT_MDG_S_T1_UT_EDTN_BUSPART2).
*--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_MDG_S_T1_UT_EDTN_BUSPART INDEX 1 INTO DATA(WA_MDG_S_T1_UT_EDTN_BUSPART2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MDG_S_T1_UT_EDTN_BUSPART ASSIGNING <MDG_S_T1_UT_EDTN_BUSPART>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDG_S_T1_UT_EDTN_BUSPART>-BUSPART = 1.
<MDG_S_T1_UT_EDTN_BUSPART>-USMD_EDITION = 1.
<MDG_S_T1_UT_EDTN_BUSPART>-USMD_EDTN_NUMBER = 1.
<MDG_S_T1_UT_EDTN_BUSPART>-USMD_VDATE_FROM = 1.
<MDG_S_T1_UT_EDTN_BUSPART>-USMD_VDATE_TO = 1.

ENDLOOP.

LOOP AT IT_MDG_S_T1_UT_EDTN_BUSPART INTO WA_MDG_S_T1_UT_EDTN_BUSPART.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_VPER_FROM, sy-vline,
  WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_VPER_TO, sy-vline,
  WA_MDG_S_T1_UT_EDTN_BUSPART-BUSPATYP, sy-vline,
  WA_MDG_S_T1_UT_EDTN_BUSPART-CITY, sy-vline,
  WA_MDG_S_T1_UT_EDTN_BUSPART-CONTACT, sy-vline,
  WA_MDG_S_T1_UT_EDTN_BUSPART-CONTPHONO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDG_S_T1_UT_EDTN_BUSPART 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_MDG_S_T1_UT_EDTN_BUSPART 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_MDG_S_T1_UT_EDTN_BUSPART INTO WA_MDG_S_T1_UT_EDTN_BUSPART.


*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 ALPHA, internal->external for field USMD_EDITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_EDITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_EDITION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field USMD_VPER_FROM
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_VPER_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_VPER_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field USMD_VPER_TO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_VPER_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_S_T1_UT_EDTN_BUSPART-USMD_VPER_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TA_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_MDG_S_T1_UT_EDTN_BUSPART-TA_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDG_S_T1_UT_EDTN_BUSPART-TA_LANGU.
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_MDG_S_T1_UT_EDTN_BUSPART_STR, 
BUSPART TYPE STRING,
USMD_EDITION TYPE STRING,
USMD_EDTN_NUMBER TYPE STRING,
USMD_VDATE_FROM TYPE STRING,
USMD_VDATE_TO TYPE STRING,
USMD_VPER_FROM TYPE STRING,
USMD_VPER_TO TYPE STRING,
BUSPATYP TYPE STRING,
CITY TYPE STRING,
CONTACT TYPE STRING,
CONTPHONO TYPE STRING,
NAME TYPE STRING,
POSTBOX TYPE STRING,
POSTCODE TYPE STRING,
REGION TYPE STRING,
STREET TYPE STRING,
TA_CNTRY TYPE STRING,
TA_CURR TYPE STRING,
TA_LANGU TYPE STRING,
TA_URL TYPE STRING,
TELEPHONE TYPE STRING,
TXTMI TYPE STRING,
USMD_ACTIVE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDG_S_T1_UT_EDTN_BUSPART_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_MDG_S_T1_UT_EDTN_BUSPART_STR-BUSPART sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_EDITION sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_EDTN_NUMBER sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_VDATE_FROM sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_VDATE_TO sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_VPER_FROM sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_VPER_TO sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-BUSPATYP sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-CITY sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-CONTACT sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-CONTPHONO sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-NAME sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-POSTBOX sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-POSTCODE sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-REGION sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-STREET sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-TA_CNTRY sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-TA_CURR sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-TA_LANGU sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-TA_URL sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-TELEPHONE sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-TXTMI sy-vline 
WA_MDG_S_T1_UT_EDTN_BUSPART_STR-USMD_ACTIVE sy-vline      INTO ld_text SEPARATED BY SPACE.

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