ABAP Select data from SAP table LMBI_DO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LMBI_DO
*  INTO TABLE @DATA(IT_LMBI_DO2).
*--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_LMBI_DO INDEX 1 INTO DATA(WA_LMBI_DO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LMBI_DO>-TASKI = 1.
<LMBI_DO>-ACTIV = 1.
<LMBI_DO>-HUNMS = 1.
<LMBI_DO>-HUTPS = 1.
<LMBI_DO>-HUNMD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LMBI_DO-HUTPD, sy-vline,
  WA_LMBI_DO-WCNTR, sy-vline,
  WA_LMBI_DO-QTYBS, sy-vline,
  WA_LMBI_DO-QTYAL, sy-vline,
  WA_LMBI_DO-BSUOM, sy-vline,
  WA_LMBI_DO-ALUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LMBI_DO 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_LMBI_DO 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_LMBI_DO INTO WA_LMBI_DO.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_LMBI_DO-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LMBI_DO-MATNR.
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_LMBI_DO_STR, 
TASKI TYPE STRING,
ACTIV TYPE STRING,
HUNMS TYPE STRING,
HUTPS TYPE STRING,
HUNMD TYPE STRING,
HUTPD TYPE STRING,
WCNTR TYPE STRING,
QTYBS TYPE STRING,
QTYAL TYPE STRING,
BSUOM TYPE STRING,
ALUOM TYPE STRING,
MATNR TYPE STRING,
MATYP TYPE STRING,
MATIN TYPE STRING,
MATDS TYPE STRING,
BATCH TYPE STRING,
STKCT TYPE STRING,
STKIN TYPE STRING,
STKNR TYPE STRING,
MATPN TYPE STRING,
MATPD TYPE STRING,
MATAN TYPE STRING,
MATAD TYPE STRING,
MATAQ TYPE STRING,
MATAU TYPE STRING,
LTRM_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LMBI_DO_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_LMBI_DO_STR-TASKI sy-vline 
WA_LMBI_DO_STR-ACTIV sy-vline 
WA_LMBI_DO_STR-HUNMS sy-vline 
WA_LMBI_DO_STR-HUTPS sy-vline 
WA_LMBI_DO_STR-HUNMD sy-vline 
WA_LMBI_DO_STR-HUTPD sy-vline 
WA_LMBI_DO_STR-WCNTR sy-vline 
WA_LMBI_DO_STR-QTYBS sy-vline 
WA_LMBI_DO_STR-QTYAL sy-vline 
WA_LMBI_DO_STR-BSUOM sy-vline 
WA_LMBI_DO_STR-ALUOM sy-vline 
WA_LMBI_DO_STR-MATNR sy-vline 
WA_LMBI_DO_STR-MATYP sy-vline 
WA_LMBI_DO_STR-MATIN sy-vline 
WA_LMBI_DO_STR-MATDS sy-vline 
WA_LMBI_DO_STR-BATCH sy-vline 
WA_LMBI_DO_STR-STKCT sy-vline 
WA_LMBI_DO_STR-STKIN sy-vline 
WA_LMBI_DO_STR-STKNR sy-vline 
WA_LMBI_DO_STR-MATPN sy-vline 
WA_LMBI_DO_STR-MATPD sy-vline 
WA_LMBI_DO_STR-MATAN sy-vline 
WA_LMBI_DO_STR-MATAD sy-vline 
WA_LMBI_DO_STR-MATAQ sy-vline 
WA_LMBI_DO_STR-MATAU sy-vline 
WA_LMBI_DO_STR-LTRM_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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