ABAP Select data from SAP table LKO74SEND into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LKO74SEND 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 LKO74SEND. 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 LKO74SEND 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_LKO74SEND TYPE STANDARD TABLE OF LKO74SEND,
      WA_LKO74SEND TYPE LKO74SEND,
      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: <LKO74SEND> TYPE LKO74SEND.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LKO74SEND.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LKO74SEND
  INTO TABLE IT_LKO74SEND.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LKO74SEND
*  INTO TABLE @DATA(IT_LKO74SEND2).
*--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_LKO74SEND INDEX 1 INTO DATA(WA_LKO74SEND2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LKO74SEND ASSIGNING <LKO74SEND>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LKO74SEND>-EMTYP = 1.
<LKO74SEND>-PSPNR = 1.
<LKO74SEND>-COOBJNR = 1.
<LKO74SEND>-AUFPL = 1.
<LKO74SEND>-APLZL = 1.

ENDLOOP.

LOOP AT IT_LKO74SEND INTO WA_LKO74SEND.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LKO74SEND-AUFNR, sy-vline,
  WA_LKO74SEND-KSTRG, sy-vline,
  WA_LKO74SEND-KDAUF, sy-vline,
  WA_LKO74SEND-KDPOS, sy-vline,
  WA_LKO74SEND-AUTYP, sy-vline,
  WA_LKO74SEND-BELA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LKO74SEND 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_LKO74SEND 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_LKO74SEND INTO WA_LKO74SEND.


*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 OBART, internal->external for field EMTYP
CALL FUNCTION 'CONVERSION_EXIT_OBART_OUTPUT'
  EXPORTING
    input =                      WA_LKO74SEND-EMTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LKO74SEND-EMTYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_LKO74SEND-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LKO74SEND-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LKO74SEND-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LKO74SEND-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LKO74SEND-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LKO74SEND-KDAUF.
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_LKO74SEND_STR, 
EMTYP TYPE STRING,
PSPNR TYPE STRING,
COOBJNR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
AUFNR TYPE STRING,
KSTRG TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
AUTYP TYPE STRING,
BELA TYPE STRING,
POSNR TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LKO74SEND_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_LKO74SEND_STR-EMTYP sy-vline 
WA_LKO74SEND_STR-PSPNR sy-vline 
WA_LKO74SEND_STR-COOBJNR sy-vline 
WA_LKO74SEND_STR-AUFPL sy-vline 
WA_LKO74SEND_STR-APLZL sy-vline 
WA_LKO74SEND_STR-AUFNR sy-vline 
WA_LKO74SEND_STR-KSTRG sy-vline 
WA_LKO74SEND_STR-KDAUF sy-vline 
WA_LKO74SEND_STR-KDPOS sy-vline 
WA_LKO74SEND_STR-AUTYP sy-vline 
WA_LKO74SEND_STR-BELA sy-vline 
WA_LKO74SEND_STR-POSNR sy-vline 
WA_LKO74SEND_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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