ABAP Select data from SAP table LOMD_MATMAS05 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LOMD_MATMAS05 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_MATMAS05. 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_MATMAS05 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_MATMAS05 TYPE STANDARD TABLE OF LOMD_MATMAS05,
      WA_LOMD_MATMAS05 TYPE LOMD_MATMAS05,
      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_MATMAS05> TYPE LOMD_MATMAS05.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LOMD_MATMAS05.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LOMD_MATMAS05
  INTO TABLE IT_LOMD_MATMAS05.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LOMD_MATMAS05
*  INTO TABLE @DATA(IT_LOMD_MATMAS052).
*--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_MATMAS05 INDEX 1 INTO DATA(WA_LOMD_MATMAS052).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LOMD_MATMAS05 ASSIGNING <LOMD_MATMAS05>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LOMD_MATMAS05>-EDIDC = 1.
<LOMD_MATMAS05>-MANDT = 1.
<LOMD_MATMAS05>-DOCNUM = 1.
<LOMD_MATMAS05>-DOCREL = 1.
<LOMD_MATMAS05>-STATUS = 1.

ENDLOOP.

LOOP AT IT_LOMD_MATMAS05 INTO WA_LOMD_MATMAS05.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LOMD_MATMAS05-DOCTYP, sy-vline,
  WA_LOMD_MATMAS05-DIRECT, sy-vline,
  WA_LOMD_MATMAS05-RCVPOR, sy-vline,
  WA_LOMD_MATMAS05-RCVPRT, sy-vline,
  WA_LOMD_MATMAS05-RCVPRN, sy-vline,
  WA_LOMD_MATMAS05-RCVSAD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LOMD_MATMAS05 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_MATMAS05 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_MATMAS05 INTO WA_LOMD_MATMAS05.


*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 RCVPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LOMD_MATMAS05-RCVPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOMD_MATMAS05-RCVPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SNDPRN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LOMD_MATMAS05-SNDPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOMD_MATMAS05-SNDPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field RCVPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_LOMD_MATMAS05-RCVPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOMD_MATMAS05-RCVPFC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EDIPV, internal->external for field SNDPFC
CALL FUNCTION 'CONVERSION_EXIT_EDIPV_OUTPUT'
  EXPORTING
    input =                      WA_LOMD_MATMAS05-SNDPFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LOMD_MATMAS05-SNDPFC.
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_LOMD_MATMAS05_STR, 
EDIDC TYPE STRING,
MANDT TYPE STRING,
DOCNUM TYPE STRING,
DOCREL TYPE STRING,
STATUS TYPE STRING,
DOCTYP TYPE STRING,
DIRECT TYPE STRING,
RCVPOR TYPE STRING,
RCVPRT TYPE STRING,
RCVPRN TYPE STRING,
RCVSAD TYPE STRING,
RCVSMN TYPE STRING,
RCVSNA TYPE STRING,
RCVSCA TYPE STRING,
RCVSDF TYPE STRING,
RCVSLF TYPE STRING,
RCVLAD TYPE STRING,
STD TYPE STRING,
STDVRS TYPE STRING,
STDMES TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
OUTMOD TYPE STRING,
TEST TYPE STRING,
SNDPOR TYPE STRING,
SNDPRT TYPE STRING,
SNDPRN TYPE STRING,
SNDSAD TYPE STRING,
SNDSMN TYPE STRING,
SNDSNA TYPE STRING,
SNDSCA TYPE STRING,
SNDSDF TYPE STRING,
SNDSLF TYPE STRING,
SNDLAD TYPE STRING,
REFINT TYPE STRING,
REFGRP TYPE STRING,
REFMES TYPE STRING,
ARCKEY TYPE STRING,
CREDAT TYPE STRING,
CRETIM TYPE STRING,
MESTYP TYPE STRING,
IDOCTP TYPE STRING,
CIMTYP TYPE STRING,
RCVPFC TYPE STRING,
SNDPFC TYPE STRING,
SERIAL TYPE STRING,
EXPRSS TYPE STRING,
UPDDAT TYPE STRING,
UPDTIM TYPE STRING,
MAXSEGNUM TYPE STRING,
E1MARAM TYPE STRING,
E1UPSLINK TYPE STRING,
UPSNAM TYPE STRING,
ORGNAM TYPE STRING,
MESTYP TYPE STRING,
OBJID TYPE STRING,
OBJVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LOMD_MATMAS05_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_MATMAS05_STR-EDIDC sy-vline 
WA_LOMD_MATMAS05_STR-MANDT sy-vline 
WA_LOMD_MATMAS05_STR-DOCNUM sy-vline 
WA_LOMD_MATMAS05_STR-DOCREL sy-vline 
WA_LOMD_MATMAS05_STR-STATUS sy-vline 
WA_LOMD_MATMAS05_STR-DOCTYP sy-vline 
WA_LOMD_MATMAS05_STR-DIRECT sy-vline 
WA_LOMD_MATMAS05_STR-RCVPOR sy-vline 
WA_LOMD_MATMAS05_STR-RCVPRT sy-vline 
WA_LOMD_MATMAS05_STR-RCVPRN sy-vline 
WA_LOMD_MATMAS05_STR-RCVSAD sy-vline 
WA_LOMD_MATMAS05_STR-RCVSMN sy-vline 
WA_LOMD_MATMAS05_STR-RCVSNA sy-vline 
WA_LOMD_MATMAS05_STR-RCVSCA sy-vline 
WA_LOMD_MATMAS05_STR-RCVSDF sy-vline 
WA_LOMD_MATMAS05_STR-RCVSLF sy-vline 
WA_LOMD_MATMAS05_STR-RCVLAD sy-vline 
WA_LOMD_MATMAS05_STR-STD sy-vline 
WA_LOMD_MATMAS05_STR-STDVRS sy-vline 
WA_LOMD_MATMAS05_STR-STDMES sy-vline 
WA_LOMD_MATMAS05_STR-MESCOD sy-vline 
WA_LOMD_MATMAS05_STR-MESFCT sy-vline 
WA_LOMD_MATMAS05_STR-OUTMOD sy-vline 
WA_LOMD_MATMAS05_STR-TEST sy-vline 
WA_LOMD_MATMAS05_STR-SNDPOR sy-vline 
WA_LOMD_MATMAS05_STR-SNDPRT sy-vline 
WA_LOMD_MATMAS05_STR-SNDPRN sy-vline 
WA_LOMD_MATMAS05_STR-SNDSAD sy-vline 
WA_LOMD_MATMAS05_STR-SNDSMN sy-vline 
WA_LOMD_MATMAS05_STR-SNDSNA sy-vline 
WA_LOMD_MATMAS05_STR-SNDSCA sy-vline 
WA_LOMD_MATMAS05_STR-SNDSDF sy-vline 
WA_LOMD_MATMAS05_STR-SNDSLF sy-vline 
WA_LOMD_MATMAS05_STR-SNDLAD sy-vline 
WA_LOMD_MATMAS05_STR-REFINT sy-vline 
WA_LOMD_MATMAS05_STR-REFGRP sy-vline 
WA_LOMD_MATMAS05_STR-REFMES sy-vline 
WA_LOMD_MATMAS05_STR-ARCKEY sy-vline 
WA_LOMD_MATMAS05_STR-CREDAT sy-vline 
WA_LOMD_MATMAS05_STR-CRETIM sy-vline 
WA_LOMD_MATMAS05_STR-MESTYP sy-vline 
WA_LOMD_MATMAS05_STR-IDOCTP sy-vline 
WA_LOMD_MATMAS05_STR-CIMTYP sy-vline 
WA_LOMD_MATMAS05_STR-RCVPFC sy-vline 
WA_LOMD_MATMAS05_STR-SNDPFC sy-vline 
WA_LOMD_MATMAS05_STR-SERIAL sy-vline 
WA_LOMD_MATMAS05_STR-EXPRSS sy-vline 
WA_LOMD_MATMAS05_STR-UPDDAT sy-vline 
WA_LOMD_MATMAS05_STR-UPDTIM sy-vline 
WA_LOMD_MATMAS05_STR-MAXSEGNUM sy-vline 
WA_LOMD_MATMAS05_STR-E1MARAM sy-vline 
WA_LOMD_MATMAS05_STR-E1UPSLINK sy-vline 
WA_LOMD_MATMAS05_STR-UPSNAM sy-vline 
WA_LOMD_MATMAS05_STR-ORGNAM sy-vline 
WA_LOMD_MATMAS05_STR-MESTYP sy-vline 
WA_LOMD_MATMAS05_STR-OBJID sy-vline 
WA_LOMD_MATMAS05_STR-OBJVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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