ABAP Select data from SAP table ISCUSTOMERMATERIALTP1_D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISCUSTOMERMATERIALTP1_D 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 ISCUSTOMERMATERIALTP1_D. 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 ISCUSTOMERMATERIALTP1_D 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_ISCUSTOMERMATERIALTP1_D TYPE STANDARD TABLE OF ISCUSTOMERMATERIALTP1_D,
      WA_ISCUSTOMERMATERIALTP1_D TYPE ISCUSTOMERMATERIALTP1_D,
      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: <ISCUSTOMERMATERIALTP1_D> TYPE ISCUSTOMERMATERIALTP1_D.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISCUSTOMERMATERIALTP1_D.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISCUSTOMERMATERIALTP1_D
  INTO TABLE IT_ISCUSTOMERMATERIALTP1_D.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISCUSTOMERMATERIALTP1_D
*  INTO TABLE @DATA(IT_ISCUSTOMERMATERIALTP1_D2).
*--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_ISCUSTOMERMATERIALTP1_D INDEX 1 INTO DATA(WA_ISCUSTOMERMATERIALTP1_D2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISCUSTOMERMATERIALTP1_D ASSIGNING <ISCUSTOMERMATERIALTP1_D>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISCUSTOMERMATERIALTP1_D>-SALESORGANIZATION = 1.
<ISCUSTOMERMATERIALTP1_D>-DISTRIBUTIONCHANNEL = 1.
<ISCUSTOMERMATERIALTP1_D>-CUSTOMER = 1.
<ISCUSTOMERMATERIALTP1_D>-MATERIAL = 1.
<ISCUSTOMERMATERIALTP1_D>-SALESORGANIZATIONNAME = 1.

ENDLOOP.

LOOP AT IT_ISCUSTOMERMATERIALTP1_D INTO WA_ISCUSTOMERMATERIALTP1_D.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISCUSTOMERMATERIALTP1_D-SALESORGANIZATIONFOREDIT, sy-vline,
  WA_ISCUSTOMERMATERIALTP1_D-DISTRIBUTIONCHANNELFOREDIT, sy-vline,
  WA_ISCUSTOMERMATERIALTP1_D-CUSTOMERFOREDIT, sy-vline,
  WA_ISCUSTOMERMATERIALTP1_D-MATERIALFOREDIT, sy-vline,
  WA_ISCUSTOMERMATERIALTP1_D-SORTFIELD, sy-vline,
  WA_ISCUSTOMERMATERIALTP1_D-MATERIALBYCUSTOMER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISCUSTOMERMATERIALTP1_D 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_ISCUSTOMERMATERIALTP1_D 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_ISCUSTOMERMATERIALTP1_D INTO WA_ISCUSTOMERMATERIALTP1_D.


*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 CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISCUSTOMERMATERIALTP1_D-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCUSTOMERMATERIALTP1_D-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISCUSTOMERMATERIALTP1_D-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCUSTOMERMATERIALTP1_D-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMERFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISCUSTOMERMATERIALTP1_D-CUSTOMERFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCUSTOMERMATERIALTP1_D-CUSTOMERFOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIALFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISCUSTOMERMATERIALTP1_D-MATERIALFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCUSTOMERMATERIALTP1_D-MATERIALFOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISCUSTOMERMATERIALTP1_D-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCUSTOMERMATERIALTP1_D-BASEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field SALESUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISCUSTOMERMATERIALTP1_D-SALESUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISCUSTOMERMATERIALTP1_D-SALESUNIT.
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_ISCUSTOMERMATERIALTP1_D_STR, 
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
CUSTOMER TYPE STRING,
MATERIAL TYPE STRING,
SALESORGANIZATIONNAME TYPE STRING,
SALESORGANIZATIONFOREDIT TYPE STRING,
DISTRIBUTIONCHANNELFOREDIT TYPE STRING,
CUSTOMERFOREDIT TYPE STRING,
MATERIALFOREDIT TYPE STRING,
SORTFIELD TYPE STRING,
MATERIALBYCUSTOMER TYPE STRING,
MATERIALBYCUSTOMERFOREDIT TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALDESCRIPTIONBYCUSTOMER TYPE STRING,
PLANT TYPE STRING,
DELIVERYPRIORITY TYPE STRING,
MINDELIVERYQTYINBASEUNIT TYPE STRING,
BASEUNIT TYPE STRING,
PARTIALDELIVERYISALLOWED TYPE STRING,
MAXNMBROFPARTIALDELIVERY TYPE STRING,
UNDERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
OVERDELIVTOLRTDLMTRATIOINPCT TYPE STRING,
UNLIMITEDOVERDELIVERYISALLOWED TYPE STRING,
CUSTOMERMATERIALITEMUSAGE TYPE STRING,
SALESUNIT TYPE STRING,
SALESQTYTOBASEQTYDNMNTR TYPE STRING,
SALESQTYTOBASEQTYNMRTR TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
DUMMY_SLSCUSMAT_INCL_EEW_PS TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISCUSTOMERMATERIALTP1_D_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_ISCUSTOMERMATERIALTP1_D_STR-SALESORGANIZATION sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-CUSTOMER sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MATERIAL sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-SALESORGANIZATIONNAME sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-SALESORGANIZATIONFOREDIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DISTRIBUTIONCHANNELFOREDIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-CUSTOMERFOREDIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MATERIALFOREDIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-SORTFIELD sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MATERIALBYCUSTOMER sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MATERIALBYCUSTOMERFOREDIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MATERIALNAME sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MATERIALDESCRIPTIONBYCUSTOMER sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-PLANT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DELIVERYPRIORITY sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MINDELIVERYQTYINBASEUNIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-BASEUNIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-PARTIALDELIVERYISALLOWED sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-MAXNMBROFPARTIALDELIVERY sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-UNDERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-OVERDELIVTOLRTDLMTRATIOINPCT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-UNLIMITEDOVERDELIVERYISALLOWED sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-CUSTOMERMATERIALITEMUSAGE sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-SALESUNIT sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-SALESQTYTOBASEQTYDNMNTR sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-SALESQTYTOBASEQTYNMRTR sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-HASACTIVEENTITY sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-DUMMY_SLSCUSMAT_INCL_EEW_PS sy-vline 
WA_ISCUSTOMERMATERIALTP1_D_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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