ABAP Select data from SAP table FC01LMDLC0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FC01LMDLC0 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 FC01LMDLC0. 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 FC01LMDLC0 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_FC01LMDLC0 TYPE STANDARD TABLE OF FC01LMDLC0,
      WA_FC01LMDLC0 TYPE FC01LMDLC0,
      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: <FC01LMDLC0> TYPE FC01LMDLC0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FC01LMDLC0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FC01LMDLC0
  INTO TABLE IT_FC01LMDLC0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FC01LMDLC0
*  INTO TABLE @DATA(IT_FC01LMDLC02).
*--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_FC01LMDLC0 INDEX 1 INTO DATA(WA_FC01LMDLC02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FC01LMDLC0 ASSIGNING <FC01LMDLC0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FC01LMDLC0>-RLDNR = 1.
<FC01LMDLC0>-TXT = 1.
<FC01LMDLC0>-TAB = 1.
<FC01LMDLC0>-APPL = 1.
<FC01LMDLC0>-SUBAPPL = 1.

ENDLOOP.

LOOP AT IT_FC01LMDLC0 INTO WA_FC01LMDLC0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FC01LMDLC0-POST, sy-vline,
  WA_FC01LMDLC0-ROLLUP, sy-vline,
  WA_FC01LMDLC0-VORTRAG, sy-vline,
  WA_FC01LMDLC0-GLSIP, sy-vline,
  WA_FC01LMDLC0-SHKZ, sy-vline,
  WA_FC01LMDLC0-GZLEDGER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FC01LMDLC0 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_FC01LMDLC0 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_FC01LMDLC0 INTO WA_FC01LMDLC0.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FC01LMDLC0-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FC01LMDLC0-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FC01LMDLC0-DLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FC01LMDLC0-DLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FC01LMDLC0-KLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FC01LMDLC0-KLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FC01LMDLC0-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FC01LMDLC0-LOGSYS.
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_FC01LMDLC0_STR, 
RLDNR TYPE STRING,
TXT TYPE STRING,
TAB TYPE STRING,
APPL TYPE STRING,
SUBAPPL TYPE STRING,
POST TYPE STRING,
ROLLUP TYPE STRING,
VORTRAG TYPE STRING,
GLSIP TYPE STRING,
SHKZ TYPE STRING,
GZLEDGER TYPE STRING,
TRCUR TYPE STRING,
LCCUR TYPE STRING,
CURR1TXT TYPE STRING,
RCCUR TYPE STRING,
CURR2TXT TYPE STRING,
LDGCURR TYPE STRING,
CLASS TYPE STRING,
TYP TYPE STRING,
OCCUR TYPE STRING,
QUANT TYPE STRING,
ATQNT TYPE STRING,
RCOPY TYPE STRING,
DLDNR TYPE STRING,
XDLDNR TYPE STRING,
CURT3 TYPE STRING,
V2POST TYPE STRING,
LCTYP TYPE STRING,
FIX TYPE STRING,
DEPLD TYPE STRING,
KOMP TYPE STRING,
KLDNR TYPE STRING,
LOGSYS TYPE STRING,
VALUTYP TYPE STRING,
GCOMPRESS TYPE STRING,
SPLITMETHD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FC01LMDLC0_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_FC01LMDLC0_STR-RLDNR sy-vline 
WA_FC01LMDLC0_STR-TXT sy-vline 
WA_FC01LMDLC0_STR-TAB sy-vline 
WA_FC01LMDLC0_STR-APPL sy-vline 
WA_FC01LMDLC0_STR-SUBAPPL sy-vline 
WA_FC01LMDLC0_STR-POST sy-vline 
WA_FC01LMDLC0_STR-ROLLUP sy-vline 
WA_FC01LMDLC0_STR-VORTRAG sy-vline 
WA_FC01LMDLC0_STR-GLSIP sy-vline 
WA_FC01LMDLC0_STR-SHKZ sy-vline 
WA_FC01LMDLC0_STR-GZLEDGER sy-vline 
WA_FC01LMDLC0_STR-TRCUR sy-vline 
WA_FC01LMDLC0_STR-LCCUR sy-vline 
WA_FC01LMDLC0_STR-CURR1TXT sy-vline 
WA_FC01LMDLC0_STR-RCCUR sy-vline 
WA_FC01LMDLC0_STR-CURR2TXT sy-vline 
WA_FC01LMDLC0_STR-LDGCURR sy-vline 
WA_FC01LMDLC0_STR-CLASS sy-vline 
WA_FC01LMDLC0_STR-TYP sy-vline 
WA_FC01LMDLC0_STR-OCCUR sy-vline 
WA_FC01LMDLC0_STR-QUANT sy-vline 
WA_FC01LMDLC0_STR-ATQNT sy-vline 
WA_FC01LMDLC0_STR-RCOPY sy-vline 
WA_FC01LMDLC0_STR-DLDNR sy-vline 
WA_FC01LMDLC0_STR-XDLDNR sy-vline 
WA_FC01LMDLC0_STR-CURT3 sy-vline 
WA_FC01LMDLC0_STR-V2POST sy-vline 
WA_FC01LMDLC0_STR-LCTYP sy-vline 
WA_FC01LMDLC0_STR-FIX sy-vline 
WA_FC01LMDLC0_STR-DEPLD sy-vline 
WA_FC01LMDLC0_STR-KOMP sy-vline 
WA_FC01LMDLC0_STR-KLDNR sy-vline 
WA_FC01LMDLC0_STR-LOGSYS sy-vline 
WA_FC01LMDLC0_STR-VALUTYP sy-vline 
WA_FC01LMDLC0_STR-GCOMPRESS sy-vline 
WA_FC01LMDLC0_STR-SPLITMETHD sy-vline      INTO ld_text SEPARATED BY SPACE.

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