ABAP Select data from SAP table BAPIMATMRM into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPIMATMRM 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 BAPIMATMRM. 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 BAPIMATMRM 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_BAPIMATMRM TYPE STANDARD TABLE OF BAPIMATMRM,
      WA_BAPIMATMRM TYPE BAPIMATMRM,
      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: <BAPIMATMRM> TYPE BAPIMATMRM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIMATMRM
*  INTO TABLE @DATA(IT_BAPIMATMRM2).
*--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_BAPIMATMRM INDEX 1 INTO DATA(WA_BAPIMATMRM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIMATMRM>-OPERATION = 1.
<BAPIMATMRM>-MATERIAL = 1.
<BAPIMATMRM>-UNALT = 1.
<BAPIMATMRM>-UNALT_ISO = 1.
<BAPIMATMRM>-NUMERATOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIMATMRM-DENOMINATR, sy-vline,
  WA_BAPIMATMRM-EUR_ART_NR, sy-vline,
  WA_BAPIMATMRM-EAN_UPC, sy-vline,
  WA_BAPIMATMRM-EAN_CAT, sy-vline,
  WA_BAPIMATMRM-LENGTH, sy-vline,
  WA_BAPIMATMRM-WIDTH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIMATMRM 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_BAPIMATMRM 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_BAPIMATMRM INTO WA_BAPIMATMRM.


*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 MATN5, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATMRM-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATMRM-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit EAN11, internal->external for field EAN_UPC
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATMRM-EAN_UPC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATMRM-EAN_UPC.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ATINN, internal->external for field INT_CHAR
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATMRM-INT_CHAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATMRM-INT_CHAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATERIAL_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATMRM-MATERIAL_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATMRM-MATERIAL_LONG.
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_BAPIMATMRM_STR, 
OPERATION TYPE STRING,
MATERIAL TYPE STRING,
UNALT TYPE STRING,
UNALT_ISO TYPE STRING,
NUMERATOR TYPE STRING,
DENOMINATR TYPE STRING,
EUR_ART_NR TYPE STRING,
EAN_UPC TYPE STRING,
EAN_CAT TYPE STRING,
LENGTH TYPE STRING,
WIDTH TYPE STRING,
HEIGHT TYPE STRING,
UNDIM TYPE STRING,
UNDIM_ISO TYPE STRING,
VOLUME TYPE STRING,
UNVOL TYPE STRING,
UNVOL_ISO TYPE STRING,
GROSS_WT TYPE STRING,
UNITWT TYPE STRING,
UNITWT_ISO TYPE STRING,
UNCONT TYPE STRING,
UNCONT_ISO TYPE STRING,
INT_CHAR TYPE STRING,
UOM_SORTNO TYPE STRING,
LEADINGUOM TYPE STRING,
VALUED_UOM TYPE STRING,
UOMUSAGE TYPE STRING,
UOMNT TYPE STRING,
UOMNT_ISO TYPE STRING,
MATERIAL_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIMATMRM_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_BAPIMATMRM_STR-OPERATION sy-vline 
WA_BAPIMATMRM_STR-MATERIAL sy-vline 
WA_BAPIMATMRM_STR-UNALT sy-vline 
WA_BAPIMATMRM_STR-UNALT_ISO sy-vline 
WA_BAPIMATMRM_STR-NUMERATOR sy-vline 
WA_BAPIMATMRM_STR-DENOMINATR sy-vline 
WA_BAPIMATMRM_STR-EUR_ART_NR sy-vline 
WA_BAPIMATMRM_STR-EAN_UPC sy-vline 
WA_BAPIMATMRM_STR-EAN_CAT sy-vline 
WA_BAPIMATMRM_STR-LENGTH sy-vline 
WA_BAPIMATMRM_STR-WIDTH sy-vline 
WA_BAPIMATMRM_STR-HEIGHT sy-vline 
WA_BAPIMATMRM_STR-UNDIM sy-vline 
WA_BAPIMATMRM_STR-UNDIM_ISO sy-vline 
WA_BAPIMATMRM_STR-VOLUME sy-vline 
WA_BAPIMATMRM_STR-UNVOL sy-vline 
WA_BAPIMATMRM_STR-UNVOL_ISO sy-vline 
WA_BAPIMATMRM_STR-GROSS_WT sy-vline 
WA_BAPIMATMRM_STR-UNITWT sy-vline 
WA_BAPIMATMRM_STR-UNITWT_ISO sy-vline 
WA_BAPIMATMRM_STR-UNCONT sy-vline 
WA_BAPIMATMRM_STR-UNCONT_ISO sy-vline 
WA_BAPIMATMRM_STR-INT_CHAR sy-vline 
WA_BAPIMATMRM_STR-UOM_SORTNO sy-vline 
WA_BAPIMATMRM_STR-LEADINGUOM sy-vline 
WA_BAPIMATMRM_STR-VALUED_UOM sy-vline 
WA_BAPIMATMRM_STR-UOMUSAGE sy-vline 
WA_BAPIMATMRM_STR-UOMNT sy-vline 
WA_BAPIMATMRM_STR-UOMNT_ISO sy-vline 
WA_BAPIMATMRM_STR-MATERIAL_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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