ABAP Select data from SAP table GHO_DM_RESULTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GHO_DM_RESULTS
*  INTO TABLE @DATA(IT_GHO_DM_RESULTS2).
*--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_GHO_DM_RESULTS INDEX 1 INTO DATA(WA_GHO_DM_RESULTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GHO_DM_RESULTS>-MANDT = 1.
<GHO_DM_RESULTS>-NETID = 1.
<GHO_DM_RESULTS>-PROD_DATE = 1.
<GHO_DM_RESULTS>-PROD_TIME = 1.
<GHO_DM_RESULTS>-UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GHO_DM_RESULTS-AFFECTED_OBJECT, sy-vline,
  WA_GHO_DM_RESULTS-EVENT_ID, sy-vline,
  WA_GHO_DM_RESULTS-START_PERIOD, sy-vline,
  WA_GHO_DM_RESULTS-ALLOC_FREQUENCY, sy-vline,
  WA_GHO_DM_RESULTS-MEDIUM, sy-vline,
  WA_GHO_DM_RESULTS-IS_FINAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GHO_DM_RESULTS 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_GHO_DM_RESULTS 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_GHO_DM_RESULTS INTO WA_GHO_DM_RESULTS.


*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 TPLNR, internal->external for field NETID
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_GHO_DM_RESULTS-NETID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_DM_RESULTS-NETID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_GHO_DM_RESULTS-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_DM_RESULTS-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field AFFECTED_OBJECT
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_GHO_DM_RESULTS-AFFECTED_OBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_DM_RESULTS-AFFECTED_OBJECT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TPLNR, internal->external for field EVENT_OBJECT
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_GHO_DM_RESULTS-EVENT_OBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_DM_RESULTS-EVENT_OBJECT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field DOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_GHO_DM_RESULTS-DOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GHO_DM_RESULTS-DOC_YEAR.
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_GHO_DM_RESULTS_STR, 
MANDT TYPE STRING,
NETID TYPE STRING,
PROD_DATE TYPE STRING,
PROD_TIME TYPE STRING,
UNIT TYPE STRING,
AFFECTED_OBJECT TYPE STRING,
EVENT_ID TYPE STRING,
START_PERIOD TYPE STRING,
ALLOC_FREQUENCY TYPE STRING,
MEDIUM TYPE STRING,
IS_FINAL TYPE STRING,
END_PERIOD TYPE STRING,
EVENT_OBJECT TYPE STRING,
EVENT_START_DATE TYPE STRING,
DEF_CODE TYPE STRING,
DEF_QUANTITY TYPE STRING,
RESULT_TYPE TYPE STRING,
SHELTERING_FLAG TYPE STRING,
SHELTERING_EVENT TYPE STRING,
RESULT_STATUS TYPE STRING,
NODE_POSITION TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TST TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_TST TYPE STRING,
DOC_NUM TYPE STRING,
DOC_YEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GHO_DM_RESULTS_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_GHO_DM_RESULTS_STR-MANDT sy-vline 
WA_GHO_DM_RESULTS_STR-NETID sy-vline 
WA_GHO_DM_RESULTS_STR-PROD_DATE sy-vline 
WA_GHO_DM_RESULTS_STR-PROD_TIME sy-vline 
WA_GHO_DM_RESULTS_STR-UNIT sy-vline 
WA_GHO_DM_RESULTS_STR-AFFECTED_OBJECT sy-vline 
WA_GHO_DM_RESULTS_STR-EVENT_ID sy-vline 
WA_GHO_DM_RESULTS_STR-START_PERIOD sy-vline 
WA_GHO_DM_RESULTS_STR-ALLOC_FREQUENCY sy-vline 
WA_GHO_DM_RESULTS_STR-MEDIUM sy-vline 
WA_GHO_DM_RESULTS_STR-IS_FINAL sy-vline 
WA_GHO_DM_RESULTS_STR-END_PERIOD sy-vline 
WA_GHO_DM_RESULTS_STR-EVENT_OBJECT sy-vline 
WA_GHO_DM_RESULTS_STR-EVENT_START_DATE sy-vline 
WA_GHO_DM_RESULTS_STR-DEF_CODE sy-vline 
WA_GHO_DM_RESULTS_STR-DEF_QUANTITY sy-vline 
WA_GHO_DM_RESULTS_STR-RESULT_TYPE sy-vline 
WA_GHO_DM_RESULTS_STR-SHELTERING_FLAG sy-vline 
WA_GHO_DM_RESULTS_STR-SHELTERING_EVENT sy-vline 
WA_GHO_DM_RESULTS_STR-RESULT_STATUS sy-vline 
WA_GHO_DM_RESULTS_STR-NODE_POSITION sy-vline 
WA_GHO_DM_RESULTS_STR-CREATED_BY sy-vline 
WA_GHO_DM_RESULTS_STR-CREATED_TST sy-vline 
WA_GHO_DM_RESULTS_STR-CHANGED_BY sy-vline 
WA_GHO_DM_RESULTS_STR-CHANGED_TST sy-vline 
WA_GHO_DM_RESULTS_STR-DOC_NUM sy-vline 
WA_GHO_DM_RESULTS_STR-DOC_YEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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