ABAP Select data from SAP table LOMD_00001994 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LOMD_00001994 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 LOMD_00001994. 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 LOMD_00001994 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_LOMD_00001994 TYPE STANDARD TABLE OF LOMD_00001994,
      WA_LOMD_00001994 TYPE LOMD_00001994,
      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: <LOMD_00001994> TYPE LOMD_00001994.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LOMD_00001994.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LOMD_00001994
  INTO TABLE IT_LOMD_00001994.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LOMD_00001994
*  INTO TABLE @DATA(IT_LOMD_000019942).
*--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_LOMD_00001994 INDEX 1 INTO DATA(WA_LOMD_000019942).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LOMD_00001994 ASSIGNING <LOMD_00001994>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LOMD_00001994>-MSGFN = 1.
<LOMD_00001994>-OBJTY = 1.
<LOMD_00001994>-OBJID = 1.
<LOMD_00001994>-ZAEHL = 1.
<LOMD_00001994>-OBJTY_V = 1.

ENDLOOP.

LOOP AT IT_LOMD_00001994 INTO WA_LOMD_00001994.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LOMD_00001994-OBJID_V, sy-vline,
  WA_LOMD_00001994-KZKBL, sy-vline,
  WA_LOMD_00001994-STEUF, sy-vline,
  WA_LOMD_00001994-STEUF_REF, sy-vline,
  WA_LOMD_00001994-FGRU1, sy-vline,
  WA_LOMD_00001994-FGRU2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LOMD_00001994 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_LOMD_00001994 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_LOMD_00001994 INTO WA_LOMD_00001994.


*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_LOMD_00001994_STR, 
MSGFN TYPE STRING,
OBJTY TYPE STRING,
OBJID TYPE STRING,
ZAEHL TYPE STRING,
OBJTY_V TYPE STRING,
OBJID_V TYPE STRING,
KZKBL TYPE STRING,
STEUF TYPE STRING,
STEUF_REF TYPE STRING,
FGRU1 TYPE STRING,
FGRU2 TYPE STRING,
PLANV TYPE STRING,
KTSCH TYPE STRING,
KTSCH_REF TYPE STRING,
BZOFFB TYPE STRING,
BZOFFB_REF TYPE STRING,
OFFSTB TYPE STRING,
EHOFFB TYPE STRING,
OFFSTB_REF TYPE STRING,
BZOFFE TYPE STRING,
BZOFFE_REF TYPE STRING,
OFFSTE TYPE STRING,
EHOFFE TYPE STRING,
OFFSTE_REF TYPE STRING,
MGFORM TYPE STRING,
MGFORM_REF TYPE STRING,
EWFORM TYPE STRING,
EWFORM_REF TYPE STRING,
PAR01 TYPE STRING,
PAR02 TYPE STRING,
PAR03 TYPE STRING,
PAR04 TYPE STRING,
PAR05 TYPE STRING,
PAR06 TYPE STRING,
PARU1 TYPE STRING,
PARU2 TYPE STRING,
PARU3 TYPE STRING,
PARU4 TYPE STRING,
PARU5 TYPE STRING,
PARU6 TYPE STRING,
PARV1 TYPE STRING,
PARV2 TYPE STRING,
PARV3 TYPE STRING,
PARV4 TYPE STRING,
PARV5 TYPE STRING,
PARV6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LOMD_00001994_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_LOMD_00001994_STR-MSGFN sy-vline 
WA_LOMD_00001994_STR-OBJTY sy-vline 
WA_LOMD_00001994_STR-OBJID sy-vline 
WA_LOMD_00001994_STR-ZAEHL sy-vline 
WA_LOMD_00001994_STR-OBJTY_V sy-vline 
WA_LOMD_00001994_STR-OBJID_V sy-vline 
WA_LOMD_00001994_STR-KZKBL sy-vline 
WA_LOMD_00001994_STR-STEUF sy-vline 
WA_LOMD_00001994_STR-STEUF_REF sy-vline 
WA_LOMD_00001994_STR-FGRU1 sy-vline 
WA_LOMD_00001994_STR-FGRU2 sy-vline 
WA_LOMD_00001994_STR-PLANV sy-vline 
WA_LOMD_00001994_STR-KTSCH sy-vline 
WA_LOMD_00001994_STR-KTSCH_REF sy-vline 
WA_LOMD_00001994_STR-BZOFFB sy-vline 
WA_LOMD_00001994_STR-BZOFFB_REF sy-vline 
WA_LOMD_00001994_STR-OFFSTB sy-vline 
WA_LOMD_00001994_STR-EHOFFB sy-vline 
WA_LOMD_00001994_STR-OFFSTB_REF sy-vline 
WA_LOMD_00001994_STR-BZOFFE sy-vline 
WA_LOMD_00001994_STR-BZOFFE_REF sy-vline 
WA_LOMD_00001994_STR-OFFSTE sy-vline 
WA_LOMD_00001994_STR-EHOFFE sy-vline 
WA_LOMD_00001994_STR-OFFSTE_REF sy-vline 
WA_LOMD_00001994_STR-MGFORM sy-vline 
WA_LOMD_00001994_STR-MGFORM_REF sy-vline 
WA_LOMD_00001994_STR-EWFORM sy-vline 
WA_LOMD_00001994_STR-EWFORM_REF sy-vline 
WA_LOMD_00001994_STR-PAR01 sy-vline 
WA_LOMD_00001994_STR-PAR02 sy-vline 
WA_LOMD_00001994_STR-PAR03 sy-vline 
WA_LOMD_00001994_STR-PAR04 sy-vline 
WA_LOMD_00001994_STR-PAR05 sy-vline 
WA_LOMD_00001994_STR-PAR06 sy-vline 
WA_LOMD_00001994_STR-PARU1 sy-vline 
WA_LOMD_00001994_STR-PARU2 sy-vline 
WA_LOMD_00001994_STR-PARU3 sy-vline 
WA_LOMD_00001994_STR-PARU4 sy-vline 
WA_LOMD_00001994_STR-PARU5 sy-vline 
WA_LOMD_00001994_STR-PARU6 sy-vline 
WA_LOMD_00001994_STR-PARV1 sy-vline 
WA_LOMD_00001994_STR-PARV2 sy-vline 
WA_LOMD_00001994_STR-PARV3 sy-vline 
WA_LOMD_00001994_STR-PARV4 sy-vline 
WA_LOMD_00001994_STR-PARV5 sy-vline 
WA_LOMD_00001994_STR-PARV6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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