ABAP Select data from SAP table CGRCUSRCRESUPINV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGRCUSRCRESUPINV
*  INTO TABLE @DATA(IT_CGRCUSRCRESUPINV2).
*--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_CGRCUSRCRESUPINV INDEX 1 INTO DATA(WA_CGRCUSRCRESUPINV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGRCUSRCRESUPINV>-MANDT = 1.
<CGRCUSRCRESUPINV>-SUPPLIERINVOICE = 1.
<CGRCUSRCRESUPINV>-FISCALYEAR = 1.
<CGRCUSRCRESUPINV>-COMPANYCODE = 1.
<CGRCUSRCRESUPINV>-COMPANYCODENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGRCUSRCRESUPINV-INVOICINGPARTY, sy-vline,
  WA_CGRCUSRCRESUPINV-SUPPLIERNAME, sy-vline,
  WA_CGRCUSRCRESUPINV-INVOICEGROSSAMOUNT, sy-vline,
  WA_CGRCUSRCRESUPINV-CREATIONDATE, sy-vline,
  WA_CGRCUSRCRESUPINV-CREATEDBYUSER, sy-vline,
  WA_CGRCUSRCRESUPINV-LASTCHANGEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGRCUSRCRESUPINV 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_CGRCUSRCRESUPINV 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_CGRCUSRCRESUPINV INTO WA_CGRCUSRCRESUPINV.


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

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

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

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

*Conversion exit GJAHR, internal->external for field REVERSEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CGRCUSRCRESUPINV-REVERSEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCUSRCRESUPINV-REVERSEDOCUMENTFISCALYEAR.
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_CGRCUSRCRESUPINV_STR, 
MANDT TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
INVOICINGPARTY TYPE STRING,
SUPPLIERNAME TYPE STRING,
INVOICEGROSSAMOUNT TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
SUPLRINVCEXTCREATEDBYUSER TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTHEADERTEXT TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
SUPPLIERINVOICESTATUS TYPE STRING,
SUPPLIERINVOICEORIGIN TYPE STRING,
SUPLRINVCTRANSACTIONCATEGORY TYPE STRING,
REVERSEDOCUMENT TYPE STRING,
REVERSEDOCUMENTFISCALYEAR TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
SUPLRINVCMANUALLYREDUCEDAMOUNT TYPE STRING,
SUPLRINVCMANUALREDUCTIONTAXAMT TYPE STRING,
SUPLRINVCAUTOMREDUCEDAMOUNT TYPE STRING,
SUPLRINVCAUTOMREDUCTIONTAXAMT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGRCUSRCRESUPINV_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_CGRCUSRCRESUPINV_STR-MANDT sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPPLIERINVOICE sy-vline 
WA_CGRCUSRCRESUPINV_STR-FISCALYEAR sy-vline 
WA_CGRCUSRCRESUPINV_STR-COMPANYCODE sy-vline 
WA_CGRCUSRCRESUPINV_STR-COMPANYCODENAME sy-vline 
WA_CGRCUSRCRESUPINV_STR-INVOICINGPARTY sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPPLIERNAME sy-vline 
WA_CGRCUSRCRESUPINV_STR-INVOICEGROSSAMOUNT sy-vline 
WA_CGRCUSRCRESUPINV_STR-CREATIONDATE sy-vline 
WA_CGRCUSRCRESUPINV_STR-CREATEDBYUSER sy-vline 
WA_CGRCUSRCRESUPINV_STR-LASTCHANGEDBYUSER sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPLRINVCEXTCREATEDBYUSER sy-vline 
WA_CGRCUSRCRESUPINV_STR-DOCUMENTDATE sy-vline 
WA_CGRCUSRCRESUPINV_STR-POSTINGDATE sy-vline 
WA_CGRCUSRCRESUPINV_STR-DOCUMENTHEADERTEXT sy-vline 
WA_CGRCUSRCRESUPINV_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPPLIERINVOICESTATUS sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPPLIERINVOICEORIGIN sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPLRINVCTRANSACTIONCATEGORY sy-vline 
WA_CGRCUSRCRESUPINV_STR-REVERSEDOCUMENT sy-vline 
WA_CGRCUSRCRESUPINV_STR-REVERSEDOCUMENTFISCALYEAR sy-vline 
WA_CGRCUSRCRESUPINV_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPLRINVCMANUALLYREDUCEDAMOUNT sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPLRINVCMANUALREDUCTIONTAXAMT sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPLRINVCAUTOMREDUCEDAMOUNT sy-vline 
WA_CGRCUSRCRESUPINV_STR-SUPLRINVCAUTOMREDUCTIONTAXAMT sy-vline 
WA_CGRCUSRCRESUPINV_STR-DOCUMENTCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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