ABAP Select data from SAP table LEMOVORG into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LEMOVORG 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 LEMOVORG. 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 LEMOVORG 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_LEMOVORG TYPE STANDARD TABLE OF LEMOVORG,
      WA_LEMOVORG TYPE LEMOVORG,
      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: <LEMOVORG> TYPE LEMOVORG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEMOVORG
*  INTO TABLE @DATA(IT_LEMOVORG2).
*--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_LEMOVORG INDEX 1 INTO DATA(WA_LEMOVORG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEMOVORG>-W_VKORG = 1.
<LEMOVORG>-W_SPART = 1.
<LEMOVORG>-W_VTWEG = 1.
<LEMOVORG>-W_VSTEL = 1.
<LEMOVORG>-W_LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEMOVORG-W_KUNNR, sy-vline,
  WA_LEMOVORG-L_VKORG, sy-vline,
  WA_LEMOVORG-L_SPART, sy-vline,
  WA_LEMOVORG-L_VTWEG, sy-vline,
  WA_LEMOVORG-L_VSTEL, sy-vline,
  WA_LEMOVORG-L_LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEMOVORG 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_LEMOVORG 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_LEMOVORG INTO WA_LEMOVORG.


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

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

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

*Conversion exit ALPHA, internal->external for field L_KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEMOVORG-L_KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOVORG-L_KUNNR.
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_LEMOVORG_STR, 
W_VKORG TYPE STRING,
W_SPART TYPE STRING,
W_VTWEG TYPE STRING,
W_VSTEL TYPE STRING,
W_LIFNR TYPE STRING,
W_KUNNR TYPE STRING,
L_VKORG TYPE STRING,
L_SPART TYPE STRING,
L_VTWEG TYPE STRING,
L_VSTEL TYPE STRING,
L_LIFNR TYPE STRING,
L_KUNNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
UMWRK TYPE STRING,
UMLGO TYPE STRING,
LFART TYPE STRING,
DLVTP TYPE STRING,
FOLAR TYPE STRING,
FO_DLVTP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEMOVORG_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_LEMOVORG_STR-W_VKORG sy-vline 
WA_LEMOVORG_STR-W_SPART sy-vline 
WA_LEMOVORG_STR-W_VTWEG sy-vline 
WA_LEMOVORG_STR-W_VSTEL sy-vline 
WA_LEMOVORG_STR-W_LIFNR sy-vline 
WA_LEMOVORG_STR-W_KUNNR sy-vline 
WA_LEMOVORG_STR-L_VKORG sy-vline 
WA_LEMOVORG_STR-L_SPART sy-vline 
WA_LEMOVORG_STR-L_VTWEG sy-vline 
WA_LEMOVORG_STR-L_VSTEL sy-vline 
WA_LEMOVORG_STR-L_LIFNR sy-vline 
WA_LEMOVORG_STR-L_KUNNR sy-vline 
WA_LEMOVORG_STR-WERKS sy-vline 
WA_LEMOVORG_STR-LGORT sy-vline 
WA_LEMOVORG_STR-UMWRK sy-vline 
WA_LEMOVORG_STR-UMLGO sy-vline 
WA_LEMOVORG_STR-LFART sy-vline 
WA_LEMOVORG_STR-DLVTP sy-vline 
WA_LEMOVORG_STR-FOLAR sy-vline 
WA_LEMOVORG_STR-FO_DLVTP sy-vline      INTO ld_text SEPARATED BY SPACE.

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