ABAP Select data from SAP table UCU_S_MD_METHOD_DUMMY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCU_S_MD_METHOD_DUMMY
*  INTO TABLE @DATA(IT_UCU_S_MD_METHOD_DUMMY2).
*--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_UCU_S_MD_METHOD_DUMMY INDEX 1 INTO DATA(WA_UCU_S_MD_METHOD_DUMMY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCU_S_MD_METHOD_DUMMY>-BADI_FILTER144 = 1.
<UCU_S_MD_METHOD_DUMMY>-BADI_FILTER145 = 1.
<UCU_S_MD_METHOD_DUMMY>-DATABASIS_SOURCE144 = 1.
<UCU_S_MD_METHOD_DUMMY>-DATAENTRY144 = 1.
<UCU_S_MD_METHOD_DUMMY>-DATAENTRY145 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCU_S_MD_METHOD_DUMMY-DATAENTRY147, sy-vline,
  WA_UCU_S_MD_METHOD_DUMMY-DATAENTRY_RESTAT144, sy-vline,
  WA_UCU_S_MD_METHOD_DUMMY-DATAENTRY_RESTAT145, sy-vline,
  WA_UCU_S_MD_METHOD_DUMMY-DATAENTRY_RESTAT147, sy-vline,
  WA_UCU_S_MD_METHOD_DUMMY-DATASTREAMTYPE151, sy-vline,
  WA_UCU_S_MD_METHOD_DUMMY-DELETE_PER_VALUE144, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCU_S_MD_METHOD_DUMMY 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_UCU_S_MD_METHOD_DUMMY 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_UCU_S_MD_METHOD_DUMMY INTO WA_UCU_S_MD_METHOD_DUMMY.


*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_UCU_S_MD_METHOD_DUMMY_STR, 
BADI_FILTER144 TYPE STRING,
BADI_FILTER145 TYPE STRING,
DATABASIS_SOURCE144 TYPE STRING,
DATAENTRY144 TYPE STRING,
DATAENTRY145 TYPE STRING,
DATAENTRY147 TYPE STRING,
DATAENTRY_RESTAT144 TYPE STRING,
DATAENTRY_RESTAT145 TYPE STRING,
DATAENTRY_RESTAT147 TYPE STRING,
DATASTREAMTYPE151 TYPE STRING,
DELETE_PER_VALUE144 TYPE STRING,
FIELDNAME143 TYPE STRING,
FIELDNAME144 TYPE STRING,
FIELDNAME155 TYPE STRING,
FIELDNAME213 TYPE STRING,
FIELDNAME234 TYPE STRING,
FIELDNAME242 TYPE STRING,
FIELDNAME251 TYPE STRING,
FIELDNAME252 TYPE STRING,
HRYLEAF2CG144 TYPE STRING,
MAPID144 TYPE STRING,
MAPID145 TYPE STRING,
METHOD_UPL123 TYPE STRING,
METHTYPE002 TYPE STRING,
SELID141 TYPE STRING,
SELID_SOURCE145 TYPE STRING,
SELID_TARGET144 TYPE STRING,
SELID_TARGET145 TYPE STRING,
SELID_TARGET147 TYPE STRING,
SEQNR152 TYPE STRING,
SOURCE224 TYPE STRING,
TRIGGER_DATA241 TYPE STRING,
TRIGGER_MCID241 TYPE STRING,
TRIGGER_TYPE241 TYPE STRING,
TXTMI132 TYPE STRING,
UPDATEMODE144 TYPE STRING,
UPDATEMODE145 TYPE STRING,
UPLOADTYPE144 TYPE STRING,
UPLOADTYPE145 TYPE STRING,
UPLOADTYPE147 TYPE STRING,
METHOD TYPE STRING,
SUPERORDINATE144 TYPE STRING,
IGNORE_ZERO_KFIG144 TYPE STRING,
IGNORE_ZERO_KFIG145 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCU_S_MD_METHOD_DUMMY_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_UCU_S_MD_METHOD_DUMMY_STR-BADI_FILTER144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-BADI_FILTER145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATABASIS_SOURCE144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATAENTRY144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATAENTRY145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATAENTRY147 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATAENTRY_RESTAT144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATAENTRY_RESTAT145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATAENTRY_RESTAT147 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DATASTREAMTYPE151 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-DELETE_PER_VALUE144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME143 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME155 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME213 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME234 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME242 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME251 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-FIELDNAME252 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-HRYLEAF2CG144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-MAPID144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-MAPID145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-METHOD_UPL123 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-METHTYPE002 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SELID141 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SELID_SOURCE145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SELID_TARGET144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SELID_TARGET145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SELID_TARGET147 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SEQNR152 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SOURCE224 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-TRIGGER_DATA241 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-TRIGGER_MCID241 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-TRIGGER_TYPE241 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-TXTMI132 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-UPDATEMODE144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-UPDATEMODE145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-UPLOADTYPE144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-UPLOADTYPE145 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-UPLOADTYPE147 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-METHOD sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-SUPERORDINATE144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-IGNORE_ZERO_KFIG144 sy-vline 
WA_UCU_S_MD_METHOD_DUMMY_STR-IGNORE_ZERO_KFIG145 sy-vline      INTO ld_text SEPARATED BY SPACE.

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