ABAP Select data from SAP table IMREP_MATST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMREP_MATST
*  INTO TABLE @DATA(IT_IMREP_MATST2).
*--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_IMREP_MATST INDEX 1 INTO DATA(WA_IMREP_MATST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMREP_MATST>-MANDT = 1.
<IMREP_MATST>-MATNR = 1.
<IMREP_MATST>-LVORM = 1.
<IMREP_MATST>-MTART = 1.
<IMREP_MATST>-MBRSH = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMREP_MATST-MATKL, sy-vline,
  WA_IMREP_MATST-MEINS, sy-vline,
  WA_IMREP_MATST-BSTME, sy-vline,
  WA_IMREP_MATST-BRGEW, sy-vline,
  WA_IMREP_MATST-NTGEW, sy-vline,
  WA_IMREP_MATST-GEWEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMREP_MATST 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_IMREP_MATST 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_IMREP_MATST INTO WA_IMREP_MATST.


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

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

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

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

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

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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IMREP_MATST-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMREP_MATST-SPRAS.
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_IMREP_MATST_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
LVORM TYPE STRING,
MTART TYPE STRING,
MBRSH TYPE STRING,
MATKL TYPE STRING,
MEINS TYPE STRING,
BSTME TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
EAN11 TYPE STRING,
NUMTP TYPE STRING,
LAENG TYPE STRING,
BREIT TYPE STRING,
HOEHE TYPE STRING,
MEABM TYPE STRING,
VABME TYPE STRING,
MHDRZ TYPE STRING,
MHDHB TYPE STRING,
MHDLP TYPE STRING,
WERKS TYPE STRING,
BWTTY TYPE STRING,
XCHAR TYPE STRING,
EKGRP TYPE STRING,
HERBL TYPE STRING,
UMLMC TYPE STRING,
XCHPF TYPE STRING,
STAWN TYPE STRING,
HERKL TYPE STRING,
HERKR TYPE STRING,
EXPME TYPE STRING,
MTVER TYPE STRING,
TRAME TYPE STRING,
VKUMC TYPE STRING,
VKTRW TYPE STRING,
LGORT TYPE STRING,
LABST TYPE STRING,
UMLME TYPE STRING,
INSME TYPE STRING,
EINME TYPE STRING,
SPEME TYPE STRING,
RETME TYPE STRING,
VMLAB TYPE STRING,
VMUML TYPE STRING,
VMINS TYPE STRING,
VMEIN TYPE STRING,
VMSPE TYPE STRING,
VMRET TYPE STRING,
KLABS TYPE STRING,
KINSM TYPE STRING,
KEINM TYPE STRING,
KSPEM TYPE STRING,
VKLAB TYPE STRING,
SPRAS TYPE STRING,
MAKTX TYPE STRING,
MAKTG TYPE STRING,
CHARG TYPE STRING,
VFDAT TYPE STRING,
BWTAR TYPE STRING,
CLABS TYPE STRING,
CUMLM TYPE STRING,
CINSM TYPE STRING,
CEINM TYPE STRING,
CSPEM TYPE STRING,
CRETM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMREP_MATST_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_IMREP_MATST_STR-MANDT sy-vline 
WA_IMREP_MATST_STR-MATNR sy-vline 
WA_IMREP_MATST_STR-LVORM sy-vline 
WA_IMREP_MATST_STR-MTART sy-vline 
WA_IMREP_MATST_STR-MBRSH sy-vline 
WA_IMREP_MATST_STR-MATKL sy-vline 
WA_IMREP_MATST_STR-MEINS sy-vline 
WA_IMREP_MATST_STR-BSTME sy-vline 
WA_IMREP_MATST_STR-BRGEW sy-vline 
WA_IMREP_MATST_STR-NTGEW sy-vline 
WA_IMREP_MATST_STR-GEWEI sy-vline 
WA_IMREP_MATST_STR-VOLUM sy-vline 
WA_IMREP_MATST_STR-VOLEH sy-vline 
WA_IMREP_MATST_STR-EAN11 sy-vline 
WA_IMREP_MATST_STR-NUMTP sy-vline 
WA_IMREP_MATST_STR-LAENG sy-vline 
WA_IMREP_MATST_STR-BREIT sy-vline 
WA_IMREP_MATST_STR-HOEHE sy-vline 
WA_IMREP_MATST_STR-MEABM sy-vline 
WA_IMREP_MATST_STR-VABME sy-vline 
WA_IMREP_MATST_STR-MHDRZ sy-vline 
WA_IMREP_MATST_STR-MHDHB sy-vline 
WA_IMREP_MATST_STR-MHDLP sy-vline 
WA_IMREP_MATST_STR-WERKS sy-vline 
WA_IMREP_MATST_STR-BWTTY sy-vline 
WA_IMREP_MATST_STR-XCHAR sy-vline 
WA_IMREP_MATST_STR-EKGRP sy-vline 
WA_IMREP_MATST_STR-HERBL sy-vline 
WA_IMREP_MATST_STR-UMLMC sy-vline 
WA_IMREP_MATST_STR-XCHPF sy-vline 
WA_IMREP_MATST_STR-STAWN sy-vline 
WA_IMREP_MATST_STR-HERKL sy-vline 
WA_IMREP_MATST_STR-HERKR sy-vline 
WA_IMREP_MATST_STR-EXPME sy-vline 
WA_IMREP_MATST_STR-MTVER sy-vline 
WA_IMREP_MATST_STR-TRAME sy-vline 
WA_IMREP_MATST_STR-VKUMC sy-vline 
WA_IMREP_MATST_STR-VKTRW sy-vline 
WA_IMREP_MATST_STR-LGORT sy-vline 
WA_IMREP_MATST_STR-LABST sy-vline 
WA_IMREP_MATST_STR-UMLME sy-vline 
WA_IMREP_MATST_STR-INSME sy-vline 
WA_IMREP_MATST_STR-EINME sy-vline 
WA_IMREP_MATST_STR-SPEME sy-vline 
WA_IMREP_MATST_STR-RETME sy-vline 
WA_IMREP_MATST_STR-VMLAB sy-vline 
WA_IMREP_MATST_STR-VMUML sy-vline 
WA_IMREP_MATST_STR-VMINS sy-vline 
WA_IMREP_MATST_STR-VMEIN sy-vline 
WA_IMREP_MATST_STR-VMSPE sy-vline 
WA_IMREP_MATST_STR-VMRET sy-vline 
WA_IMREP_MATST_STR-KLABS sy-vline 
WA_IMREP_MATST_STR-KINSM sy-vline 
WA_IMREP_MATST_STR-KEINM sy-vline 
WA_IMREP_MATST_STR-KSPEM sy-vline 
WA_IMREP_MATST_STR-VKLAB sy-vline 
WA_IMREP_MATST_STR-SPRAS sy-vline 
WA_IMREP_MATST_STR-MAKTX sy-vline 
WA_IMREP_MATST_STR-MAKTG sy-vline 
WA_IMREP_MATST_STR-CHARG sy-vline 
WA_IMREP_MATST_STR-VFDAT sy-vline 
WA_IMREP_MATST_STR-BWTAR sy-vline 
WA_IMREP_MATST_STR-CLABS sy-vline 
WA_IMREP_MATST_STR-CUMLM sy-vline 
WA_IMREP_MATST_STR-CINSM sy-vline 
WA_IMREP_MATST_STR-CEINM sy-vline 
WA_IMREP_MATST_STR-CSPEM sy-vline 
WA_IMREP_MATST_STR-CRETM sy-vline      INTO ld_text SEPARATED BY SPACE.

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