ABAP Select data from SAP table CSREGWHLDGTXITMQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSREGWHLDGTXITMQ
*  INTO TABLE @DATA(IT_CSREGWHLDGTXITMQ2).
*--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_CSREGWHLDGTXITMQ INDEX 1 INTO DATA(WA_CSREGWHLDGTXITMQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSREGWHLDGTXITMQ>-MANDT = 1.
<CSREGWHLDGTXITMQ>-COMPANYCODE = 1.
<CSREGWHLDGTXITMQ>-ACCOUNTINGDOCUMENT = 1.
<CSREGWHLDGTXITMQ>-FISCALYEAR = 1.
<CSREGWHLDGTXITMQ>-ACCOUNTINGDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSREGWHLDGTXITMQ-WITHHOLDINGTAXTYPE, sy-vline,
  WA_CSREGWHLDGTXITMQ-STATRYRPTGENTITY, sy-vline,
  WA_CSREGWHLDGTXITMQ-STATRYRPTCATEGORY, sy-vline,
  WA_CSREGWHLDGTXITMQ-STATRYRPTRUNID, sy-vline,
  WA_CSREGWHLDGTXITMQ-ITEMISREPORTINGRELEVANT, sy-vline,
  WA_CSREGWHLDGTXITMQ-BPTAXNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSREGWHLDGTXITMQ 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_CSREGWHLDGTXITMQ 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_CSREGWHLDGTXITMQ INTO WA_CSREGWHLDGTXITMQ.


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

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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSREGWHLDGTXITMQ-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSREGWHLDGTXITMQ-BUSINESSPARTNER.
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_CSREGWHLDGTXITMQ_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
WITHHOLDINGTAXTYPE TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
ITEMISREPORTINGRELEVANT TYPE STRING,
BPTAXNUMBER TYPE STRING,
BPTAXLONGNUMBER TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
SUPPLIERADDRESS TYPE STRING,
REPORTINGDATE TYPE STRING,
SUPPLIERRECIPIENTTYPE TYPE STRING,
CLEARINGDATE TYPE STRING,
EG_CASHDISCOUNTCODE TYPE STRING,
POSTINGDATE TYPE STRING,
OFFICIALWHLDGTAXCODE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
WHLDGTAXBASEAMTINCOCODECRCY TYPE STRING,
WITHHOLDINGTAXPERCENT TYPE STRING,
WHLDGTAXAMTINCOCODECRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSREGWHLDGTXITMQ_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_CSREGWHLDGTXITMQ_STR-MANDT sy-vline 
WA_CSREGWHLDGTXITMQ_STR-COMPANYCODE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CSREGWHLDGTXITMQ_STR-FISCALYEAR sy-vline 
WA_CSREGWHLDGTXITMQ_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_CSREGWHLDGTXITMQ_STR-WITHHOLDINGTAXTYPE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-STATRYRPTGENTITY sy-vline 
WA_CSREGWHLDGTXITMQ_STR-STATRYRPTCATEGORY sy-vline 
WA_CSREGWHLDGTXITMQ_STR-STATRYRPTRUNID sy-vline 
WA_CSREGWHLDGTXITMQ_STR-ITEMISREPORTINGRELEVANT sy-vline 
WA_CSREGWHLDGTXITMQ_STR-BPTAXNUMBER sy-vline 
WA_CSREGWHLDGTXITMQ_STR-BPTAXLONGNUMBER sy-vline 
WA_CSREGWHLDGTXITMQ_STR-BUSINESSPARTNER sy-vline 
WA_CSREGWHLDGTXITMQ_STR-BUSINESSPARTNERNAME sy-vline 
WA_CSREGWHLDGTXITMQ_STR-SUPPLIERADDRESS sy-vline 
WA_CSREGWHLDGTXITMQ_STR-REPORTINGDATE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-SUPPLIERRECIPIENTTYPE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-CLEARINGDATE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-EG_CASHDISCOUNTCODE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-POSTINGDATE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-OFFICIALWHLDGTAXCODE sy-vline 
WA_CSREGWHLDGTXITMQ_STR-TRANSACTIONCURRENCY sy-vline 
WA_CSREGWHLDGTXITMQ_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_CSREGWHLDGTXITMQ_STR-WHLDGTAXBASEAMTINCOCODECRCY sy-vline 
WA_CSREGWHLDGTXITMQ_STR-WITHHOLDINGTAXPERCENT sy-vline 
WA_CSREGWHLDGTXITMQ_STR-WHLDGTAXAMTINCOCODECRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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