ABAP Select data from SAP table CDOCLGRDTL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDOCLGRDTL
*  INTO TABLE @DATA(IT_CDOCLGRDTL2).
*--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_CDOCLGRDTL INDEX 1 INTO DATA(WA_CDOCLGRDTL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDOCLGRDTL>-MANDT = 1.
<CDOCLGRDTL>-PURCHASINGDOCUMENT = 1.
<CDOCLGRDTL>-MATERIALDOCUMENTYEAR = 1.
<CDOCLGRDTL>-PURCHASINGDOCUMENTITEM = 1.
<CDOCLGRDTL>-ACCOUNTASSIGNMENTNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDOCLGRDTL-GOODSMOVEMENTTYPE, sy-vline,
  WA_CDOCLGRDTL-PURCHASEORDER, sy-vline,
  WA_CDOCLGRDTL-PURCHASEORDERITEM, sy-vline,
  WA_CDOCLGRDTL-PURCHASEORDERTYPE, sy-vline,
  WA_CDOCLGRDTL-MATERIAL, sy-vline,
  WA_CDOCLGRDTL-MANUFACTURERMATERIAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDOCLGRDTL 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_CDOCLGRDTL 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_CDOCLGRDTL INTO WA_CDOCLGRDTL.


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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SERVICEPERFORMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDOCLGRDTL-SERVICEPERFORMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDOCLGRDTL-SERVICEPERFORMER.
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_CDOCLGRDTL_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
ACCOUNTASSIGNMENTNUMBER TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
PURCHASEORDERTYPE TYPE STRING,
MATERIAL TYPE STRING,
MANUFACTURERMATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASEORDERQTY TYPE STRING,
GOODSMOVEMENTTYPE1 TYPE STRING,
QUANTITY TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
DELIVERYDATE TYPE STRING,
POSTINGDATE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
SUPPLYINGPLANTNAME TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
SUPPLIERADDRESSCOUNTRY TYPE STRING,
SUPPLIERADDRESSCITY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
PURCHASINGDOCUMENTITEMTEXT TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURCHASINGDOCUMENTCATEGORY1 TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASEORDERITEMCATEGORY TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
WORKPACKAGEFULLNAME TYPE STRING,
SALESORDER TYPE STRING,
COSTCENTER TYPE STRING,
COSTCENTERNAME TYPE STRING,
CONTROLLINGAREA TYPE STRING,
CNTG TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
WORKITEM TYPE STRING,
SERVICEPERFORMER TYPE STRING,
SERVICEPERFORMERNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDOCLGRDTL_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_CDOCLGRDTL_STR-MANDT sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGDOCUMENT sy-vline 
WA_CDOCLGRDTL_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_CDOCLGRDTL_STR-ACCOUNTASSIGNMENTNUMBER sy-vline 
WA_CDOCLGRDTL_STR-GOODSMOVEMENTTYPE sy-vline 
WA_CDOCLGRDTL_STR-PURCHASEORDER sy-vline 
WA_CDOCLGRDTL_STR-PURCHASEORDERITEM sy-vline 
WA_CDOCLGRDTL_STR-PURCHASEORDERTYPE sy-vline 
WA_CDOCLGRDTL_STR-MATERIAL sy-vline 
WA_CDOCLGRDTL_STR-MANUFACTURERMATERIAL sy-vline 
WA_CDOCLGRDTL_STR-MATERIALGROUP sy-vline 
WA_CDOCLGRDTL_STR-PURCHASEORDERQTY sy-vline 
WA_CDOCLGRDTL_STR-GOODSMOVEMENTTYPE1 sy-vline 
WA_CDOCLGRDTL_STR-QUANTITY sy-vline 
WA_CDOCLGRDTL_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_CDOCLGRDTL_STR-DELIVERYDATE sy-vline 
WA_CDOCLGRDTL_STR-POSTINGDATE sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGGROUP sy-vline 
WA_CDOCLGRDTL_STR-SUPPLYINGPLANT sy-vline 
WA_CDOCLGRDTL_STR-SUPPLYINGPLANTNAME sy-vline 
WA_CDOCLGRDTL_STR-SUPPLIER sy-vline 
WA_CDOCLGRDTL_STR-SUPPLIERNAME sy-vline 
WA_CDOCLGRDTL_STR-SUPPLIERADDRESSCOUNTRY sy-vline 
WA_CDOCLGRDTL_STR-SUPPLIERADDRESSCITY sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGORGANIZATION sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CDOCLGRDTL_STR-PLANT sy-vline 
WA_CDOCLGRDTL_STR-PLANTNAME sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGDOCUMENTITEMTEXT sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGGROUPNAME sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGDOCUMENTCATEGORY1 sy-vline 
WA_CDOCLGRDTL_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CDOCLGRDTL_STR-PURCHASEORDERITEMCATEGORY sy-vline 
WA_CDOCLGRDTL_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_CDOCLGRDTL_STR-WBSELEMENTINTERNALID sy-vline 
WA_CDOCLGRDTL_STR-WBSELEMENTEXTERNALID sy-vline 
WA_CDOCLGRDTL_STR-WORKPACKAGEFULLNAME sy-vline 
WA_CDOCLGRDTL_STR-SALESORDER sy-vline 
WA_CDOCLGRDTL_STR-COSTCENTER sy-vline 
WA_CDOCLGRDTL_STR-COSTCENTERNAME sy-vline 
WA_CDOCLGRDTL_STR-CONTROLLINGAREA sy-vline 
WA_CDOCLGRDTL_STR-CNTG sy-vline 
WA_CDOCLGRDTL_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CDOCLGRDTL_STR-WORKITEM sy-vline 
WA_CDOCLGRDTL_STR-SERVICEPERFORMER sy-vline 
WA_CDOCLGRDTL_STR-SERVICEPERFORMERNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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