ABAP Select data from SAP table CGRCCUSMSTRCCCHG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGRCCUSMSTRCCCHG
*  INTO TABLE @DATA(IT_CGRCCUSMSTRCCCHG2).
*--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_CGRCCUSMSTRCCCHG INDEX 1 INTO DATA(WA_CGRCCUSMSTRCCCHG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGRCCUSMSTRCCCHG>-MANDT = 1.
<CGRCCUSMSTRCCCHG>-CUSTOMER = 1.
<CGRCCUSMSTRCCCHG>-COMPANYCODE = 1.
<CGRCCUSMSTRCCCHG>-CHANGEDOCUMENT = 1.
<CGRCCUSMSTRCCCHG>-CHANGEDOCDATABASETABLEFIELD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGRCCUSMSTRCCCHG-CHANGEDOCITEMCHANGETYPE, sy-vline,
  WA_CGRCCUSMSTRCCCHG-CHANGEDOCCREATIONDATE, sy-vline,
  WA_CGRCCUSMSTRCCCHG-LASTCHANGEDBYUSER, sy-vline,
  WA_CGRCCUSMSTRCCCHG-CHANGEDOCNEWFIELDVALUE, sy-vline,
  WA_CGRCCUSMSTRCCCHG-CHANGEDOCPREVIOUSFIELDVALUE, sy-vline,
  WA_CGRCCUSMSTRCCCHG-CHANGEDOCNEWUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGRCCUSMSTRCCCHG 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_CGRCCUSMSTRCCCHG 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_CGRCCUSMSTRCCCHG INTO WA_CGRCCUSMSTRCCCHG.


*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_CGRCCUSMSTRCCCHG-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCCUSMSTRCCCHG-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CHANGEDOCOBJECTCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CGRCCUSMSTRCCCHG-CHANGEDOCOBJECTCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCCUSMSTRCCCHG-CHANGEDOCOBJECTCLASS.
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_CGRCCUSMSTRCCCHG_STR, 
MANDT TYPE STRING,
CUSTOMER TYPE STRING,
COMPANYCODE TYPE STRING,
CHANGEDOCUMENT TYPE STRING,
CHANGEDOCDATABASETABLEFIELD TYPE STRING,
CHANGEDOCITEMCHANGETYPE TYPE STRING,
CHANGEDOCCREATIONDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CHANGEDOCNEWFIELDVALUE TYPE STRING,
CHANGEDOCPREVIOUSFIELDVALUE TYPE STRING,
CHANGEDOCNEWUNIT TYPE STRING,
CHANGEDOCPREVIOUSUNIT TYPE STRING,
CHANGEDOCNEWCURRENCY TYPE STRING,
CHANGEDOCPREVIOUSCURRENCY TYPE STRING,
CUSTOMERNAME TYPE STRING,
CUSTOMERACCOUNTGROUP TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
ISONETIMEACCOUNT TYPE STRING,
ISBUSINESSPURPOSECOMPLETED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
CITYNAME TYPE STRING,
COUNTRY TYPE STRING,
PAYMENTBLOCKINGREASON TYPE STRING,
PAYMENTTERMS TYPE STRING,
CUSTOMERSUPPLIERCLEARINGISUSED TYPE STRING,
PAYMENTMETHODSLIST TYPE STRING,
DELETIONINDICATOR TYPE STRING,
CREDITMEMOPAYMENTTERMS TYPE STRING,
CUSTPREVIOUSMASTERRECORDNUMBER TYPE STRING,
SUPPLIERRELEASEGROUP TYPE STRING,
CUSTOMERPAYMENTBLOCKINGREASON TYPE STRING,
DELETIONISBLOCKED TYPE STRING,
PAYMENTCLEARINGGROUP TYPE STRING,
CHANGEDOCOBJECTCLASS TYPE STRING,
DATABASETABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGRCCUSMSTRCCCHG_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_CGRCCUSMSTRCCCHG_STR-MANDT sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CUSTOMER sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-COMPANYCODE sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCUMENT sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCDATABASETABLEFIELD sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCITEMCHANGETYPE sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCCREATIONDATE sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-LASTCHANGEDBYUSER sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCNEWFIELDVALUE sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCPREVIOUSFIELDVALUE sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCNEWUNIT sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCPREVIOUSUNIT sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCNEWCURRENCY sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCPREVIOUSCURRENCY sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CUSTOMERNAME sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CUSTOMERACCOUNTGROUP sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CREATEDBYUSER sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CREATIONDATE sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-ISONETIMEACCOUNT sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-ISBUSINESSPURPOSECOMPLETED sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-AUTHORIZATIONGROUP sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CITYNAME sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-COUNTRY sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-PAYMENTBLOCKINGREASON sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-PAYMENTTERMS sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CUSTOMERSUPPLIERCLEARINGISUSED sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-PAYMENTMETHODSLIST sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-DELETIONINDICATOR sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CREDITMEMOPAYMENTTERMS sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CUSTPREVIOUSMASTERRECORDNUMBER sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-SUPPLIERRELEASEGROUP sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CUSTOMERPAYMENTBLOCKINGREASON sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-DELETIONISBLOCKED sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-PAYMENTCLEARINGGROUP sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-CHANGEDOCOBJECTCLASS sy-vline 
WA_CGRCCUSMSTRCCCHG_STR-DATABASETABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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