ABAP Select data from SAP table FAC_AUDMATUNIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_AUDMATUNIT
*  INTO TABLE @DATA(IT_FAC_AUDMATUNIT2).
*--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_FAC_AUDMATUNIT INDEX 1 INTO DATA(WA_FAC_AUDMATUNIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_AUDMATUNIT>-MANDT = 1.
<FAC_AUDMATUNIT>-MATNR = 1.
<FAC_AUDMATUNIT>-MEINH = 1.
<FAC_AUDMATUNIT>-GEWEI = 1.
<FAC_AUDMATUNIT>-BRGEW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_AUDMATUNIT-MEABM, sy-vline,
  WA_FAC_AUDMATUNIT-BREIT, sy-vline,
  WA_FAC_AUDMATUNIT-HOEHE, sy-vline,
  WA_FAC_AUDMATUNIT-LAENG, sy-vline,
  WA_FAC_AUDMATUNIT-VOLEH, sy-vline,
  WA_FAC_AUDMATUNIT-VOLUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_AUDMATUNIT 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_FAC_AUDMATUNIT 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_FAC_AUDMATUNIT INTO WA_FAC_AUDMATUNIT.


*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_FAC_AUDMATUNIT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_AUDMATUNIT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FAC_AUDMATUNIT-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_AUDMATUNIT-MEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FAC_AUDMATUNIT-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_AUDMATUNIT-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEABM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FAC_AUDMATUNIT-MEABM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_AUDMATUNIT-MEABM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FAC_AUDMATUNIT-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_AUDMATUNIT-VOLEH.
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_FAC_AUDMATUNIT_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
MEINH TYPE STRING,
GEWEI TYPE STRING,
BRGEW TYPE STRING,
MEABM TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
LAENG TYPE STRING,
VOLEH TYPE STRING,
VOLUM TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
SYSTEM_CLIENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_AUDMATUNIT_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_FAC_AUDMATUNIT_STR-MANDT sy-vline 
WA_FAC_AUDMATUNIT_STR-MATNR sy-vline 
WA_FAC_AUDMATUNIT_STR-MEINH sy-vline 
WA_FAC_AUDMATUNIT_STR-GEWEI sy-vline 
WA_FAC_AUDMATUNIT_STR-BRGEW sy-vline 
WA_FAC_AUDMATUNIT_STR-MEABM sy-vline 
WA_FAC_AUDMATUNIT_STR-BREIT sy-vline 
WA_FAC_AUDMATUNIT_STR-HOEHE sy-vline 
WA_FAC_AUDMATUNIT_STR-LAENG sy-vline 
WA_FAC_AUDMATUNIT_STR-VOLEH sy-vline 
WA_FAC_AUDMATUNIT_STR-VOLUM sy-vline 
WA_FAC_AUDMATUNIT_STR-UMREN sy-vline 
WA_FAC_AUDMATUNIT_STR-UMREZ sy-vline 
WA_FAC_AUDMATUNIT_STR-SYSTEM_CLIENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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