ABAP Select data from SAP table DRAWN_DISPLAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DRAWN_DISPLAY
*  INTO TABLE @DATA(IT_DRAWN_DISPLAY2).
*--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_DRAWN_DISPLAY INDEX 1 INTO DATA(WA_DRAWN_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DRAWN_DISPLAY>-DTRANS = 1.
<DRAWN_DISPLAY>-TTRANS = 1.
<DRAWN_DISPLAY>-NTRANS = 1.
<DRAWN_DISPLAY>-NVERF = 1.
<DRAWN_DISPLAY>-RBO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DRAWN_DISPLAY-SBO_STATUS, sy-vline,
  WA_DRAWN_DISPLAY-DDISPO, sy-vline,
  WA_DRAWN_DISPLAY-VCBTR, sy-vline,
  WA_DRAWN_DISPLAY-SCWHR, sy-vline,
  WA_DRAWN_DISPLAY-NAME1, sy-vline,
  WA_DRAWN_DISPLAY-ORT01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DRAWN_DISPLAY 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_DRAWN_DISPLAY 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_DRAWN_DISPLAY INTO WA_DRAWN_DISPLAY.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DRAWN_DISPLAY-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DRAWN_DISPLAY-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RANL_REPLACE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DRAWN_DISPLAY-RANL_REPLACE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DRAWN_DISPLAY-RANL_REPLACE.
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_DRAWN_DISPLAY_STR, 
DTRANS TYPE STRING,
TTRANS TYPE STRING,
NTRANS TYPE STRING,
NVERF TYPE STRING,
RBO TYPE STRING,
SBO_STATUS TYPE STRING,
DDISPO TYPE STRING,
VCBTR TYPE STRING,
SCWHR TYPE STRING,
NAME1 TYPE STRING,
ORT01 TYPE STRING,
PARTNER TYPE STRING,
BKVID TYPE STRING,
ZLSCH TYPE STRING,
BANK_COUNTRY TYPE STRING,
BANK_KEY TYPE STRING,
BANK_ACC_NR TYPE STRING,
BANK_NAME TYPE STRING,
SGTXT TYPE STRING,
SPLANIST TYPE STRING,
SATZART TYPE STRING,
BUKRS_REPLACE TYPE STRING,
RANL_REPLACE TYPE STRING,
REMIT_INFO TYPE STRING,
IBAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DRAWN_DISPLAY_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_DRAWN_DISPLAY_STR-DTRANS sy-vline 
WA_DRAWN_DISPLAY_STR-TTRANS sy-vline 
WA_DRAWN_DISPLAY_STR-NTRANS sy-vline 
WA_DRAWN_DISPLAY_STR-NVERF sy-vline 
WA_DRAWN_DISPLAY_STR-RBO sy-vline 
WA_DRAWN_DISPLAY_STR-SBO_STATUS sy-vline 
WA_DRAWN_DISPLAY_STR-DDISPO sy-vline 
WA_DRAWN_DISPLAY_STR-VCBTR sy-vline 
WA_DRAWN_DISPLAY_STR-SCWHR sy-vline 
WA_DRAWN_DISPLAY_STR-NAME1 sy-vline 
WA_DRAWN_DISPLAY_STR-ORT01 sy-vline 
WA_DRAWN_DISPLAY_STR-PARTNER sy-vline 
WA_DRAWN_DISPLAY_STR-BKVID sy-vline 
WA_DRAWN_DISPLAY_STR-ZLSCH sy-vline 
WA_DRAWN_DISPLAY_STR-BANK_COUNTRY sy-vline 
WA_DRAWN_DISPLAY_STR-BANK_KEY sy-vline 
WA_DRAWN_DISPLAY_STR-BANK_ACC_NR sy-vline 
WA_DRAWN_DISPLAY_STR-BANK_NAME sy-vline 
WA_DRAWN_DISPLAY_STR-SGTXT sy-vline 
WA_DRAWN_DISPLAY_STR-SPLANIST sy-vline 
WA_DRAWN_DISPLAY_STR-SATZART sy-vline 
WA_DRAWN_DISPLAY_STR-BUKRS_REPLACE sy-vline 
WA_DRAWN_DISPLAY_STR-RANL_REPLACE sy-vline 
WA_DRAWN_DISPLAY_STR-REMIT_INFO sy-vline 
WA_DRAWN_DISPLAY_STR-IBAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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