ABAP Select data from SAP table CKZVATRETCSTDECQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKZVATRETCSTDECQ
*  INTO TABLE @DATA(IT_CKZVATRETCSTDECQ2).
*--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_CKZVATRETCSTDECQ INDEX 1 INTO DATA(WA_CKZVATRETCSTDECQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKZVATRETCSTDECQ>-MANDT = 1.
<CKZVATRETCSTDECQ>-COMPANYCODE = 1.
<CKZVATRETCSTDECQ>-FISCALYEAR = 1.
<CKZVATRETCSTDECQ>-FISCALPERIOD = 1.
<CKZVATRETCSTDECQ>-CUSTOMSDECLARATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKZVATRETCSTDECQ-KZ_VATRETURNSECTION, sy-vline,
  WA_CKZVATRETCSTDECQ-KZ_VATLINEITEM, sy-vline,
  WA_CKZVATRETCSTDECQ-CUSTOMSDECLARATIONREGDATE, sy-vline,
  WA_CKZVATRETCSTDECQ-PAYMENTDATE, sy-vline,
  WA_CKZVATRETCSTDECQ-TAXAMOUNT, sy-vline,
  WA_CKZVATRETCSTDECQ-PAIDAMOUNTINPAYTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKZVATRETCSTDECQ 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_CKZVATRETCSTDECQ 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_CKZVATRETCSTDECQ INTO WA_CKZVATRETCSTDECQ.


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

*Conversion exit AC152, internal->external for field TAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CKZVATRETCSTDECQ-TAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKZVATRETCSTDECQ-TAXAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PAIDAMOUNTINPAYTCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CKZVATRETCSTDECQ-PAIDAMOUNTINPAYTCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKZVATRETCSTDECQ-PAIDAMOUNTINPAYTCURRENCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PREVPERDSBALTAXAMTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CKZVATRETCSTDECQ-PREVPERDSBALTAXAMTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKZVATRETCSTDECQ-PREVPERDSBALTAXAMTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field OPENTOTALTAXAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CKZVATRETCSTDECQ-OPENTOTALTAXAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKZVATRETCSTDECQ-OPENTOTALTAXAMOUNT.
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_CKZVATRETCSTDECQ_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
FISCALPERIOD TYPE STRING,
CUSTOMSDECLARATION TYPE STRING,
KZ_VATRETURNSECTION TYPE STRING,
KZ_VATLINEITEM TYPE STRING,
CUSTOMSDECLARATIONREGDATE TYPE STRING,
PAYMENTDATE TYPE STRING,
TAXAMOUNT TYPE STRING,
PAIDAMOUNTINPAYTCURRENCY TYPE STRING,
PREVPERDSBALTAXAMTINCOCODECRCY TYPE STRING,
OPENTOTALTAXAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKZVATRETCSTDECQ_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_CKZVATRETCSTDECQ_STR-MANDT sy-vline 
WA_CKZVATRETCSTDECQ_STR-COMPANYCODE sy-vline 
WA_CKZVATRETCSTDECQ_STR-FISCALYEAR sy-vline 
WA_CKZVATRETCSTDECQ_STR-FISCALPERIOD sy-vline 
WA_CKZVATRETCSTDECQ_STR-CUSTOMSDECLARATION sy-vline 
WA_CKZVATRETCSTDECQ_STR-KZ_VATRETURNSECTION sy-vline 
WA_CKZVATRETCSTDECQ_STR-KZ_VATLINEITEM sy-vline 
WA_CKZVATRETCSTDECQ_STR-CUSTOMSDECLARATIONREGDATE sy-vline 
WA_CKZVATRETCSTDECQ_STR-PAYMENTDATE sy-vline 
WA_CKZVATRETCSTDECQ_STR-TAXAMOUNT sy-vline 
WA_CKZVATRETCSTDECQ_STR-PAIDAMOUNTINPAYTCURRENCY sy-vline 
WA_CKZVATRETCSTDECQ_STR-PREVPERDSBALTAXAMTINCOCODECRCY sy-vline 
WA_CKZVATRETCSTDECQ_STR-OPENTOTALTAXAMOUNT sy-vline 
WA_CKZVATRETCSTDECQ_STR-CURRENCY sy-vline 
WA_CKZVATRETCSTDECQ_STR-STATRYRPTGENTITY sy-vline 
WA_CKZVATRETCSTDECQ_STR-STATRYRPTCATEGORY sy-vline 
WA_CKZVATRETCSTDECQ_STR-STATRYRPTRUNID sy-vline      INTO ld_text SEPARATED BY SPACE.

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