ABAP Select data from SAP table LGORT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LGORT
*  INTO TABLE @DATA(IT_LGORT2).
*--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_LGORT INDEX 1 INTO DATA(WA_LGORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LGORT>-ZEILL = 1.
<LGORT>-XSELP = 1.
<LGORT>-XHELL = 1.
<LGORT>-BESTD = 1.
<LGORT>-BESTH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LGORT-BESTS, sy-vline,
  WA_LGORT-ERFMG, sy-vline,
  WA_LGORT-ERFME, sy-vline,
  WA_LGORT-MENGE, sy-vline,
  WA_LGORT-MEINS, sy-vline,
  WA_LGORT-UMREZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LGORT 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_LGORT 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_LGORT INTO WA_LGORT.


*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 CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LGORT-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LGORT-ERFME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LGORT-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LGORT-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_LGORT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LGORT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CHAME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LGORT-CHAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LGORT-CHAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LGORT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LGORT-LIFNR.
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_LGORT_STR, 
ZEILL TYPE STRING,
XSELP TYPE STRING,
XHELL TYPE STRING,
BESTD TYPE STRING,
BESTH TYPE STRING,
BESTS TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
SPERR TYPE STRING,
LABST TYPE STRING,
UMLME TYPE STRING,
INSME TYPE STRING,
EINME TYPE STRING,
SPEME TYPE STRING,
RETME TYPE STRING,
VMLAB TYPE STRING,
VMUML TYPE STRING,
VMINS TYPE STRING,
VMEIN TYPE STRING,
VMSPE TYPE STRING,
VMRET TYPE STRING,
KZILL TYPE STRING,
KZVLL TYPE STRING,
KZILQ TYPE STRING,
KZVLQ TYPE STRING,
KZILE TYPE STRING,
KZVLE TYPE STRING,
KZILS TYPE STRING,
KZVLS TYPE STRING,
BWTAR TYPE STRING,
VFDAT TYPE STRING,
LWEDT TYPE STRING,
ZUSCH TYPE STRING,
ZUSTD TYPE STRING,
CHAME TYPE STRING,
SPERC TYPE STRING,
CLABS TYPE STRING,
CUMLM TYPE STRING,
CINSM TYPE STRING,
CEINM TYPE STRING,
CSPEM TYPE STRING,
CRETM TYPE STRING,
CVMLA TYPE STRING,
CVMUM TYPE STRING,
CVMIN TYPE STRING,
CVMEI TYPE STRING,
CVMSP TYPE STRING,
CVMRE TYPE STRING,
KZICL TYPE STRING,
KZICQ TYPE STRING,
KZICE TYPE STRING,
KZICS TYPE STRING,
FELDN TYPE STRING,
VERAB TYPE STRING,
LIFNR TYPE STRING,
KZCHF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LGORT_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_LGORT_STR-ZEILL sy-vline 
WA_LGORT_STR-XSELP sy-vline 
WA_LGORT_STR-XHELL sy-vline 
WA_LGORT_STR-BESTD sy-vline 
WA_LGORT_STR-BESTH sy-vline 
WA_LGORT_STR-BESTS sy-vline 
WA_LGORT_STR-ERFMG sy-vline 
WA_LGORT_STR-ERFME sy-vline 
WA_LGORT_STR-MENGE sy-vline 
WA_LGORT_STR-MEINS sy-vline 
WA_LGORT_STR-UMREZ sy-vline 
WA_LGORT_STR-UMREN sy-vline 
WA_LGORT_STR-MANDT sy-vline 
WA_LGORT_STR-MATNR sy-vline 
WA_LGORT_STR-WERKS sy-vline 
WA_LGORT_STR-LGORT sy-vline 
WA_LGORT_STR-CHARG sy-vline 
WA_LGORT_STR-SOBKZ sy-vline 
WA_LGORT_STR-SPERR sy-vline 
WA_LGORT_STR-LABST sy-vline 
WA_LGORT_STR-UMLME sy-vline 
WA_LGORT_STR-INSME sy-vline 
WA_LGORT_STR-EINME sy-vline 
WA_LGORT_STR-SPEME sy-vline 
WA_LGORT_STR-RETME sy-vline 
WA_LGORT_STR-VMLAB sy-vline 
WA_LGORT_STR-VMUML sy-vline 
WA_LGORT_STR-VMINS sy-vline 
WA_LGORT_STR-VMEIN sy-vline 
WA_LGORT_STR-VMSPE sy-vline 
WA_LGORT_STR-VMRET sy-vline 
WA_LGORT_STR-KZILL sy-vline 
WA_LGORT_STR-KZVLL sy-vline 
WA_LGORT_STR-KZILQ sy-vline 
WA_LGORT_STR-KZVLQ sy-vline 
WA_LGORT_STR-KZILE sy-vline 
WA_LGORT_STR-KZVLE sy-vline 
WA_LGORT_STR-KZILS sy-vline 
WA_LGORT_STR-KZVLS sy-vline 
WA_LGORT_STR-BWTAR sy-vline 
WA_LGORT_STR-VFDAT sy-vline 
WA_LGORT_STR-LWEDT sy-vline 
WA_LGORT_STR-ZUSCH sy-vline 
WA_LGORT_STR-ZUSTD sy-vline 
WA_LGORT_STR-CHAME sy-vline 
WA_LGORT_STR-SPERC sy-vline 
WA_LGORT_STR-CLABS sy-vline 
WA_LGORT_STR-CUMLM sy-vline 
WA_LGORT_STR-CINSM sy-vline 
WA_LGORT_STR-CEINM sy-vline 
WA_LGORT_STR-CSPEM sy-vline 
WA_LGORT_STR-CRETM sy-vline 
WA_LGORT_STR-CVMLA sy-vline 
WA_LGORT_STR-CVMUM sy-vline 
WA_LGORT_STR-CVMIN sy-vline 
WA_LGORT_STR-CVMEI sy-vline 
WA_LGORT_STR-CVMSP sy-vline 
WA_LGORT_STR-CVMRE sy-vline 
WA_LGORT_STR-KZICL sy-vline 
WA_LGORT_STR-KZICQ sy-vline 
WA_LGORT_STR-KZICE sy-vline 
WA_LGORT_STR-KZICS sy-vline 
WA_LGORT_STR-FELDN sy-vline 
WA_LGORT_STR-VERAB sy-vline 
WA_LGORT_STR-LIFNR sy-vline 
WA_LGORT_STR-KZCHF sy-vline      INTO ld_text SEPARATED BY SPACE.

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