ABAP Select data from SAP table LEMOVDAT 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 LEMOVDAT 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 LEMOVDAT. 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 LEMOVDAT 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_LEMOVDAT TYPE STANDARD TABLE OF LEMOVDAT,
      WA_LEMOVDAT TYPE LEMOVDAT,
      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: <LEMOVDAT> TYPE LEMOVDAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEMOVDAT
*  INTO TABLE @DATA(IT_LEMOVDAT2).
*--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_LEMOVDAT INDEX 1 INTO DATA(WA_LEMOVDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEMOVDAT>-RBLVS = 1.
<LEMOVDAT>-UMRBL = 1.
<LEMOVDAT>-UMRBU = 1.
<LEMOVDAT>-BSTAR = 1.
<LEMOVDAT>-SHKZG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEMOVDAT-FOBWA, sy-vline,
  WA_LEMOVDAT-FO_DLVTP, sy-vline,
  WA_LEMOVDAT-DLVTP, sy-vline,
  WA_LEMOVDAT-MHDRZ, sy-vline,
  WA_LEMOVDAT-MHDHB, sy-vline,
  WA_LEMOVDAT-IPRKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEMOVDAT 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_LEMOVDAT 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_LEMOVDAT INTO WA_LEMOVDAT.


*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 PERKZ, internal->external for field IPRKZ
CALL FUNCTION 'CONVERSION_EXIT_PERKZ_OUTPUT'
  EXPORTING
    input =                      WA_LEMOVDAT-IPRKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOVDAT-IPRKZ.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LEMOVDAT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOVDAT-MEINS.
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_LEMOVDAT_STR, 
RBLVS TYPE STRING,
UMRBL TYPE STRING,
UMRBU TYPE STRING,
BSTAR TYPE STRING,
SHKZG TYPE STRING,
FOBWA TYPE STRING,
FO_DLVTP TYPE STRING,
DLVTP TYPE STRING,
MHDRZ TYPE STRING,
MHDHB TYPE STRING,
IPRKZ TYPE STRING,
RDMHD TYPE STRING,
MHDRZ_LT TYPE STRING,
MTART TYPE STRING,
MHDAT_GT TYPE STRING,
CHNEU TYPE STRING,
KZMHD TYPE STRING,
KZCLA TYPE STRING,
XKCFC TYPE STRING,
XWMHD TYPE STRING,
KZCHA TYPE STRING,
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,
MEINS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEMOVDAT_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_LEMOVDAT_STR-RBLVS sy-vline 
WA_LEMOVDAT_STR-UMRBL sy-vline 
WA_LEMOVDAT_STR-UMRBU sy-vline 
WA_LEMOVDAT_STR-BSTAR sy-vline 
WA_LEMOVDAT_STR-SHKZG sy-vline 
WA_LEMOVDAT_STR-FOBWA sy-vline 
WA_LEMOVDAT_STR-FO_DLVTP sy-vline 
WA_LEMOVDAT_STR-DLVTP sy-vline 
WA_LEMOVDAT_STR-MHDRZ sy-vline 
WA_LEMOVDAT_STR-MHDHB sy-vline 
WA_LEMOVDAT_STR-IPRKZ sy-vline 
WA_LEMOVDAT_STR-RDMHD sy-vline 
WA_LEMOVDAT_STR-MHDRZ_LT sy-vline 
WA_LEMOVDAT_STR-MTART sy-vline 
WA_LEMOVDAT_STR-MHDAT_GT sy-vline 
WA_LEMOVDAT_STR-CHNEU sy-vline 
WA_LEMOVDAT_STR-KZMHD sy-vline 
WA_LEMOVDAT_STR-KZCLA sy-vline 
WA_LEMOVDAT_STR-XKCFC sy-vline 
WA_LEMOVDAT_STR-XWMHD sy-vline 
WA_LEMOVDAT_STR-KZCHA sy-vline 
WA_LEMOVDAT_STR-W_VKORG sy-vline 
WA_LEMOVDAT_STR-W_SPART sy-vline 
WA_LEMOVDAT_STR-W_VTWEG sy-vline 
WA_LEMOVDAT_STR-W_VSTEL sy-vline 
WA_LEMOVDAT_STR-W_LIFNR sy-vline 
WA_LEMOVDAT_STR-W_KUNNR sy-vline 
WA_LEMOVDAT_STR-L_VKORG sy-vline 
WA_LEMOVDAT_STR-L_SPART sy-vline 
WA_LEMOVDAT_STR-L_VTWEG sy-vline 
WA_LEMOVDAT_STR-L_VSTEL sy-vline 
WA_LEMOVDAT_STR-L_LIFNR sy-vline 
WA_LEMOVDAT_STR-L_KUNNR sy-vline 
WA_LEMOVDAT_STR-MEINS sy-vline      INTO ld_text SEPARATED BY SPACE.

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