ABAP Select data from SAP table AET_MATLDOCITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AET_MATLDOCITM
*  INTO TABLE @DATA(IT_AET_MATLDOCITM2).
*--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_AET_MATLDOCITM INDEX 1 INTO DATA(WA_AET_MATLDOCITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AET_MATLDOCITM>-MANDT = 1.
<AET_MATLDOCITM>-MATERIALDOCUMENT = 1.
<AET_MATLDOCITM>-MATERIALDOCUMENTYEAR = 1.
<AET_MATLDOCITM>-MATERIALDOCUMENTITEM = 1.
<AET_MATLDOCITM>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AET_MATLDOCITM-PLANT, sy-vline,
  WA_AET_MATLDOCITM-STORAGELOCATION, sy-vline,
  WA_AET_MATLDOCITM-COSTCENTER, sy-vline,
  WA_AET_MATLDOCITM-POSTINGDATE, sy-vline,
  WA_AET_MATLDOCITM-DOCUMENTDATE, sy-vline,
  WA_AET_MATLDOCITM-CREATIONDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AET_MATLDOCITM 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_AET_MATLDOCITM 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_AET_MATLDOCITM INTO WA_AET_MATLDOCITM.


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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_AET_MATLDOCITM-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AET_MATLDOCITM-MATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field REVERSEDMATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_AET_MATLDOCITM-REVERSEDMATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AET_MATLDOCITM-REVERSEDMATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field ORDERID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AET_MATLDOCITM-ORDERID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AET_MATLDOCITM-ORDERID.
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_AET_MATLDOCITM_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
COSTCENTER TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
MATERIAL TYPE STRING,
BATCH TYPE STRING,
QUANTITYINENTRYUNIT TYPE STRING,
ENTRYUNIT TYPE STRING,
QUANTITYINBASEUNIT TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
ISREVERSALMOVEMENTTYPE TYPE STRING,
GOODSMOVEMENTREFDOCTYPE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
ISAUTOMATICALLYCREATED TYPE STRING,
GOODSMOVEMENTREASONCODE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLYINGSUPPLIER TYPE STRING,
CUSTOMER TYPE STRING,
GOODSRECIPIENTNAME TYPE STRING,
ISSUINGORRECEIVINGPLANT TYPE STRING,
ISSUINGORRECEIVINGSTORAGELOC TYPE STRING,
ISSGORRCVGMATERIAL TYPE STRING,
ISSGORRCVGBATCH TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
ORIGINALMATERIALDOCUMENTITEM TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REVERSEDMATERIALDOCUMENT TYPE STRING,
REVERSEDMATERIALDOCUMENTITEM TYPE STRING,
REVERSEDMATERIALDOCUMENTYEAR TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
PURCHASEORDERCATEGORY TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
PURCHASEORDERSUBTYPE TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
SALESORDERTYPE TYPE STRING,
SALESDOCUMENTITEMCATEGORY TYPE STRING,
ORDERID TYPE STRING,
ORDERITEM TYPE STRING,
ORDERCATEGORY TYPE STRING,
ORDERTYPE TYPE STRING,
SUPPLIERAUTHZNGRP TYPE STRING,
CUSTOMERAUTHZNGRP TYPE STRING,
ISSTORLOCAUTHZNCHECKACTIVE TYPE STRING,
ISISSGORRCVGSTORLOCAUTHCHKACTV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AET_MATLDOCITM_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_AET_MATLDOCITM_STR-MANDT sy-vline 
WA_AET_MATLDOCITM_STR-MATERIALDOCUMENT sy-vline 
WA_AET_MATLDOCITM_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_AET_MATLDOCITM_STR-MATERIALDOCUMENTITEM sy-vline 
WA_AET_MATLDOCITM_STR-COMPANYCODE sy-vline 
WA_AET_MATLDOCITM_STR-PLANT sy-vline 
WA_AET_MATLDOCITM_STR-STORAGELOCATION sy-vline 
WA_AET_MATLDOCITM_STR-COSTCENTER sy-vline 
WA_AET_MATLDOCITM_STR-POSTINGDATE sy-vline 
WA_AET_MATLDOCITM_STR-DOCUMENTDATE sy-vline 
WA_AET_MATLDOCITM_STR-CREATIONDATE sy-vline 
WA_AET_MATLDOCITM_STR-CREATIONTIME sy-vline 
WA_AET_MATLDOCITM_STR-MATERIAL sy-vline 
WA_AET_MATLDOCITM_STR-BATCH sy-vline 
WA_AET_MATLDOCITM_STR-QUANTITYINENTRYUNIT sy-vline 
WA_AET_MATLDOCITM_STR-ENTRYUNIT sy-vline 
WA_AET_MATLDOCITM_STR-QUANTITYINBASEUNIT sy-vline 
WA_AET_MATLDOCITM_STR-MATERIALBASEUNIT sy-vline 
WA_AET_MATLDOCITM_STR-GOODSMOVEMENTTYPE sy-vline 
WA_AET_MATLDOCITM_STR-ISREVERSALMOVEMENTTYPE sy-vline 
WA_AET_MATLDOCITM_STR-GOODSMOVEMENTREFDOCTYPE sy-vline 
WA_AET_MATLDOCITM_STR-DEBITCREDITCODE sy-vline 
WA_AET_MATLDOCITM_STR-ISAUTOMATICALLYCREATED sy-vline 
WA_AET_MATLDOCITM_STR-GOODSMOVEMENTREASONCODE sy-vline 
WA_AET_MATLDOCITM_STR-SUPPLIER sy-vline 
WA_AET_MATLDOCITM_STR-SUPPLYINGSUPPLIER sy-vline 
WA_AET_MATLDOCITM_STR-CUSTOMER sy-vline 
WA_AET_MATLDOCITM_STR-GOODSRECIPIENTNAME sy-vline 
WA_AET_MATLDOCITM_STR-ISSUINGORRECEIVINGPLANT sy-vline 
WA_AET_MATLDOCITM_STR-ISSUINGORRECEIVINGSTORAGELOC sy-vline 
WA_AET_MATLDOCITM_STR-ISSGORRCVGMATERIAL sy-vline 
WA_AET_MATLDOCITM_STR-ISSGORRCVGBATCH sy-vline 
WA_AET_MATLDOCITM_STR-SUPPLYINGPLANT sy-vline 
WA_AET_MATLDOCITM_STR-ORIGINALMATERIALDOCUMENTITEM sy-vline 
WA_AET_MATLDOCITM_STR-REFERENCEDOCUMENT sy-vline 
WA_AET_MATLDOCITM_STR-REVERSEDMATERIALDOCUMENT sy-vline 
WA_AET_MATLDOCITM_STR-REVERSEDMATERIALDOCUMENTITEM sy-vline 
WA_AET_MATLDOCITM_STR-REVERSEDMATERIALDOCUMENTYEAR sy-vline 
WA_AET_MATLDOCITM_STR-DELIVERYDOCUMENT sy-vline 
WA_AET_MATLDOCITM_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_AET_MATLDOCITM_STR-PURCHASEORDER sy-vline 
WA_AET_MATLDOCITM_STR-PURCHASEORDERITEM sy-vline 
WA_AET_MATLDOCITM_STR-PURCHASEORDERCATEGORY sy-vline 
WA_AET_MATLDOCITM_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_AET_MATLDOCITM_STR-PURCHASEORDERTYPE sy-vline 
WA_AET_MATLDOCITM_STR-PURCHASEORDERSUBTYPE sy-vline 
WA_AET_MATLDOCITM_STR-SALESORDER sy-vline 
WA_AET_MATLDOCITM_STR-SALESORDERITEM sy-vline 
WA_AET_MATLDOCITM_STR-SALESORDERTYPE sy-vline 
WA_AET_MATLDOCITM_STR-SALESDOCUMENTITEMCATEGORY sy-vline 
WA_AET_MATLDOCITM_STR-ORDERID sy-vline 
WA_AET_MATLDOCITM_STR-ORDERITEM sy-vline 
WA_AET_MATLDOCITM_STR-ORDERCATEGORY sy-vline 
WA_AET_MATLDOCITM_STR-ORDERTYPE sy-vline 
WA_AET_MATLDOCITM_STR-SUPPLIERAUTHZNGRP sy-vline 
WA_AET_MATLDOCITM_STR-CUSTOMERAUTHZNGRP sy-vline 
WA_AET_MATLDOCITM_STR-ISSTORLOCAUTHZNCHECKACTIVE sy-vline 
WA_AET_MATLDOCITM_STR-ISISSGORRCVGSTORLOCAUTHCHKACTV sy-vline      INTO ld_text SEPARATED BY SPACE.

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