ABAP Select data from SAP table FC01LMDLG0 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP FC01LMDLG0 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 FC01LMDLG0. 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 FC01LMDLG0 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_FC01LMDLG0 TYPE STANDARD TABLE OF FC01LMDLG0,
      WA_FC01LMDLG0 TYPE FC01LMDLG0,
      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: <FC01LMDLG0> TYPE FC01LMDLG0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FC01LMDLG0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FC01LMDLG0
  INTO TABLE IT_FC01LMDLG0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FC01LMDLG0
*  INTO TABLE @DATA(IT_FC01LMDLG02).
*--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_FC01LMDLG0 INDEX 1 INTO DATA(WA_FC01LMDLG02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FC01LMDLG0 ASSIGNING <FC01LMDLG0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FC01LMDLG0>-DIMEN = 1.
<FC01LMDLG0>-DOCTY = 1.
<FC01LMDLG0>-TXT = 1.
<FC01LMDLG0>-RLEVL = 1.
<FC01LMDLG0>-BLCHK = 1.

ENDLOOP.

LOOP AT IT_FC01LMDLG0 INTO WA_FC01LMDLG0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FC01LMDLG0-CACTA, sy-vline,
  WA_FC01LMDLG0-MNPOS, sy-vline,
  WA_FC01LMDLG0-TCIND, sy-vline,
  WA_FC01LMDLG0-LCIND, sy-vline,
  WA_FC01LMDLG0-GCIND_2, sy-vline,
  WA_FC01LMDLG0-CUTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FC01LMDLG0 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_FC01LMDLG0 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_FC01LMDLG0 INTO WA_FC01LMDLG0.


*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 BFIMC, internal->external for field CCUIT
CALL FUNCTION 'CONVERSION_EXIT_BFIMC_OUTPUT'
  EXPORTING
    input =                      WA_FC01LMDLG0-CCUIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FC01LMDLG0-CCUIT.
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_FC01LMDLG0_STR, 
DIMEN TYPE STRING,
DOCTY TYPE STRING,
TXT TYPE STRING,
RLEVL TYPE STRING,
BLCHK TYPE STRING,
CACTA TYPE STRING,
MNPOS TYPE STRING,
TCIND TYPE STRING,
LCIND TYPE STRING,
GCIND_2 TYPE STRING,
CUTYP TYPE STRING,
DTAXD TYPE STRING,
DTAXC TYPE STRING,
QNTIN TYPE STRING,
ADTIN TYPE STRING,
TAXIN TYPE STRING,
CNVIN TYPE STRING,
ITTYP TYPE STRING,
CCUIT TYPE STRING,
CCUST TYPE STRING,
CCUSI TYPE STRING,
NRRNG TYPE STRING,
AUTRV TYPE STRING,
ICOIFLG TYPE STRING,
FSCAT TYPE STRING,
AUTRV_SUPPR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FC01LMDLG0_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_FC01LMDLG0_STR-DIMEN sy-vline 
WA_FC01LMDLG0_STR-DOCTY sy-vline 
WA_FC01LMDLG0_STR-TXT sy-vline 
WA_FC01LMDLG0_STR-RLEVL sy-vline 
WA_FC01LMDLG0_STR-BLCHK sy-vline 
WA_FC01LMDLG0_STR-CACTA sy-vline 
WA_FC01LMDLG0_STR-MNPOS sy-vline 
WA_FC01LMDLG0_STR-TCIND sy-vline 
WA_FC01LMDLG0_STR-LCIND sy-vline 
WA_FC01LMDLG0_STR-GCIND_2 sy-vline 
WA_FC01LMDLG0_STR-CUTYP sy-vline 
WA_FC01LMDLG0_STR-DTAXD sy-vline 
WA_FC01LMDLG0_STR-DTAXC sy-vline 
WA_FC01LMDLG0_STR-QNTIN sy-vline 
WA_FC01LMDLG0_STR-ADTIN sy-vline 
WA_FC01LMDLG0_STR-TAXIN sy-vline 
WA_FC01LMDLG0_STR-CNVIN sy-vline 
WA_FC01LMDLG0_STR-ITTYP sy-vline 
WA_FC01LMDLG0_STR-CCUIT sy-vline 
WA_FC01LMDLG0_STR-CCUST sy-vline 
WA_FC01LMDLG0_STR-CCUSI sy-vline 
WA_FC01LMDLG0_STR-NRRNG sy-vline 
WA_FC01LMDLG0_STR-AUTRV sy-vline 
WA_FC01LMDLG0_STR-ICOIFLG sy-vline 
WA_FC01LMDLG0_STR-FSCAT sy-vline 
WA_FC01LMDLG0_STR-AUTRV_SUPPR sy-vline      INTO ld_text SEPARATED BY SPACE.

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