ABAP Select data from SAP table CGRCCLINVPDWTHTG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGRCCLINVPDWTHTG
*  INTO TABLE @DATA(IT_CGRCCLINVPDWTHTG2).
*--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_CGRCCLINVPDWTHTG INDEX 1 INTO DATA(WA_CGRCCLINVPDWTHTG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGRCCLINVPDWTHTG>-MANDT = 1.
<CGRCCLINVPDWTHTG>-COMPANYCODE = 1.
<CGRCCLINVPDWTHTG>-PURCHASINGDOCUMENT = 1.
<CGRCCLINVPDWTHTG>-PURCHASINGDOCUMENTITEM = 1.
<CGRCCLINVPDWTHTG>-PURCHASINGDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGRCCLINVPDWTHTG-PURCHASINGDOCUMENTTYPE, sy-vline,
  WA_CGRCCLINVPDWTHTG-PURCHASINGORGANIZATION, sy-vline,
  WA_CGRCCLINVPDWTHTG-CREATIONDATE, sy-vline,
  WA_CGRCCLINVPDWTHTG-INVOICECREATEDBYUSER, sy-vline,
  WA_CGRCCLINVPDWTHTG-GROSSAMOUNT, sy-vline,
  WA_CGRCCLINVPDWTHTG-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGRCCLINVPDWTHTG 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_CGRCCLINVPDWTHTG 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_CGRCCLINVPDWTHTG INTO WA_CGRCCLINVPDWTHTG.


*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_CGRCCLINVPDWTHTG-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCCLINVPDWTHTG-PURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIERINVOICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CGRCCLINVPDWTHTG-SUPPLIERINVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCCLINVPDWTHTG-SUPPLIERINVOICE.
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_CGRCCLINVPDWTHTG_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
CREATIONDATE TYPE STRING,
INVOICECREATEDBYUSER TYPE STRING,
GROSSAMOUNT TYPE STRING,
CREATEDBYUSER TYPE STRING,
PURCHASINGDOCUMENTCREATIONDATE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGDOCUMENTORIGIN TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
NUMBEROFGOODSRECEIPTS TYPE STRING,
NUMBEROFINVOICERECEIPTS TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
INVOICERCPTAMTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
GRIRCLEARINGPROCESSSTATUS TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGRCCLINVPDWTHTG_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_CGRCCLINVPDWTHTG_STR-MANDT sy-vline 
WA_CGRCCLINVPDWTHTG_STR-COMPANYCODE sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGDOCUMENT sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGORGANIZATION sy-vline 
WA_CGRCCLINVPDWTHTG_STR-CREATIONDATE sy-vline 
WA_CGRCCLINVPDWTHTG_STR-INVOICECREATEDBYUSER sy-vline 
WA_CGRCCLINVPDWTHTG_STR-GROSSAMOUNT sy-vline 
WA_CGRCCLINVPDWTHTG_STR-CREATEDBYUSER sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGDOCUMENTCREATIONDATE sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGGROUP sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PURCHASINGDOCUMENTORIGIN sy-vline 
WA_CGRCCLINVPDWTHTG_STR-DOCUMENTCURRENCY sy-vline 
WA_CGRCCLINVPDWTHTG_STR-NUMBEROFGOODSRECEIPTS sy-vline 
WA_CGRCCLINVPDWTHTG_STR-NUMBEROFINVOICERECEIPTS sy-vline 
WA_CGRCCLINVPDWTHTG_STR-MATERIAL sy-vline 
WA_CGRCCLINVPDWTHTG_STR-PLANT sy-vline 
WA_CGRCCLINVPDWTHTG_STR-SUPPLIER sy-vline 
WA_CGRCCLINVPDWTHTG_STR-SUPPLIERNAME sy-vline 
WA_CGRCCLINVPDWTHTG_STR-SUPPLIERINVOICE sy-vline 
WA_CGRCCLINVPDWTHTG_STR-INVOICERCPTAMTINCOCODECRCY sy-vline 
WA_CGRCCLINVPDWTHTG_STR-COMPANYCODECURRENCY sy-vline 
WA_CGRCCLINVPDWTHTG_STR-LASTCHANGEDBYUSER sy-vline 
WA_CGRCCLINVPDWTHTG_STR-GRIRCLEARINGPROCESSSTATUS sy-vline 
WA_CGRCCLINVPDWTHTG_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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