ABAP Select data from SAP table FC01LMDLA0 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FC01LMDLA0 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 FC01LMDLA0. 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 FC01LMDLA0 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_FC01LMDLA0 TYPE STANDARD TABLE OF FC01LMDLA0,
      WA_FC01LMDLA0 TYPE FC01LMDLA0,
      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: <FC01LMDLA0> TYPE FC01LMDLA0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FC01LMDLA0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FC01LMDLA0
  INTO TABLE IT_FC01LMDLA0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FC01LMDLA0
*  INTO TABLE @DATA(IT_FC01LMDLA02).
*--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_FC01LMDLA0 INDEX 1 INTO DATA(WA_FC01LMDLA02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FC01LMDLA0 ASSIGNING <FC01LMDLA0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FC01LMDLA0>-SITYP = 1.
<FC01LMDLA0>-SITEM = 1.
<FC01LMDLA0>-TXTSH = 1.
<FC01LMDLA0>-TXTMI = 1.
<FC01LMDLA0>-SIGN = 1.

ENDLOOP.

LOOP AT IT_FC01LMDLA0 INTO WA_FC01LMDLA0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FC01LMDLA0-UPCFO, sy-vline,
  WA_FC01LMDLA0-UPRET, sy-vline,
  WA_FC01LMDLA0-UPACQ, sy-vline,
  WA_FC01LMDLA0-UPMER, sy-vline,
  WA_FC01LMDLA0-FMLIND, sy-vline,
  WA_FC01LMDLA0-CFIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FC01LMDLA0 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_FC01LMDLA0 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_FC01LMDLA0 INTO WA_FC01LMDLA0.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FC01LMDLA0_STR, 
SITYP TYPE STRING,
SITEM TYPE STRING,
TXTSH TYPE STRING,
TXTMI TYPE STRING,
SIGN TYPE STRING,
UPCFO TYPE STRING,
UPRET TYPE STRING,
UPACQ TYPE STRING,
UPMER TYPE STRING,
FMLIND TYPE STRING,
CFIND TYPE STRING,
SDEIND TYPE STRING,
CYIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FC01LMDLA0_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_FC01LMDLA0_STR-SITYP sy-vline 
WA_FC01LMDLA0_STR-SITEM sy-vline 
WA_FC01LMDLA0_STR-TXTSH sy-vline 
WA_FC01LMDLA0_STR-TXTMI sy-vline 
WA_FC01LMDLA0_STR-SIGN sy-vline 
WA_FC01LMDLA0_STR-UPCFO sy-vline 
WA_FC01LMDLA0_STR-UPRET sy-vline 
WA_FC01LMDLA0_STR-UPACQ sy-vline 
WA_FC01LMDLA0_STR-UPMER sy-vline 
WA_FC01LMDLA0_STR-FMLIND sy-vline 
WA_FC01LMDLA0_STR-CFIND sy-vline 
WA_FC01LMDLA0_STR-SDEIND sy-vline 
WA_FC01LMDLA0_STR-CYIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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