ABAP Select data from SAP table UCD_S_DA_CONTROL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCD_S_DA_CONTROL
*  INTO TABLE @DATA(IT_UCD_S_DA_CONTROL2).
*--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_UCD_S_DA_CONTROL INDEX 1 INTO DATA(WA_UCD_S_DA_CONTROL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCD_S_DA_CONTROL>-NODOCUMENT = 1.
<UCD_S_DA_CONTROL>-MANDOC = 1.
<UCD_S_DA_CONTROL>-MANDOC_IGNORE = 1.
<UCD_S_DA_CONTROL>-REVERSE = 1.
<UCD_S_DA_CONTROL>-NIEFF_SA_ADD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCD_S_DA_CONTROL-NIEFF_LINES_ADD, sy-vline,
  WA_UCD_S_DA_CONTROL-IUCLR_LINES_ADD, sy-vline,
  WA_UCD_S_DA_CONTROL-DTAX_SUPPRESS, sy-vline,
  WA_UCD_S_DA_CONTROL-DEBLOCK_SUPPRESS, sy-vline,
  WA_UCD_S_DA_CONTROL-CROSSUNIT, sy-vline,
  WA_UCD_S_DA_CONTROL-WARNING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCD_S_DA_CONTROL 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_UCD_S_DA_CONTROL 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_UCD_S_DA_CONTROL INTO WA_UCD_S_DA_CONTROL.


*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_UCD_S_DA_CONTROL_STR, 
NODOCUMENT TYPE STRING,
MANDOC TYPE STRING,
MANDOC_IGNORE TYPE STRING,
REVERSE TYPE STRING,
NIEFF_SA_ADD TYPE STRING,
NIEFF_LINES_ADD TYPE STRING,
IUCLR_LINES_ADD TYPE STRING,
DTAX_SUPPRESS TYPE STRING,
DEBLOCK_SUPPRESS TYPE STRING,
CROSSUNIT TYPE STRING,
WARNING TYPE STRING,
INFO TYPE STRING,
SPLIT_BY_NODE TYPE STRING,
T_KFIG TYPE STRING,
ARROP TYPE STRING,
PLEVEL_BCF TYPE STRING,
GRCLR_LINES_ADD TYPE STRING,
DTAX_ACCEPT TYPE STRING,
VAL_SUPPRESS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCD_S_DA_CONTROL_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_UCD_S_DA_CONTROL_STR-NODOCUMENT sy-vline 
WA_UCD_S_DA_CONTROL_STR-MANDOC sy-vline 
WA_UCD_S_DA_CONTROL_STR-MANDOC_IGNORE sy-vline 
WA_UCD_S_DA_CONTROL_STR-REVERSE sy-vline 
WA_UCD_S_DA_CONTROL_STR-NIEFF_SA_ADD sy-vline 
WA_UCD_S_DA_CONTROL_STR-NIEFF_LINES_ADD sy-vline 
WA_UCD_S_DA_CONTROL_STR-IUCLR_LINES_ADD sy-vline 
WA_UCD_S_DA_CONTROL_STR-DTAX_SUPPRESS sy-vline 
WA_UCD_S_DA_CONTROL_STR-DEBLOCK_SUPPRESS sy-vline 
WA_UCD_S_DA_CONTROL_STR-CROSSUNIT sy-vline 
WA_UCD_S_DA_CONTROL_STR-WARNING sy-vline 
WA_UCD_S_DA_CONTROL_STR-INFO sy-vline 
WA_UCD_S_DA_CONTROL_STR-SPLIT_BY_NODE sy-vline 
WA_UCD_S_DA_CONTROL_STR-T_KFIG sy-vline 
WA_UCD_S_DA_CONTROL_STR-ARROP sy-vline 
WA_UCD_S_DA_CONTROL_STR-PLEVEL_BCF sy-vline 
WA_UCD_S_DA_CONTROL_STR-GRCLR_LINES_ADD sy-vline 
WA_UCD_S_DA_CONTROL_STR-DTAX_ACCEPT sy-vline 
WA_UCD_S_DA_CONTROL_STR-VAL_SUPPRESS sy-vline      INTO ld_text SEPARATED BY SPACE.

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