ABAP Select data from SAP table IDFIVATS_SECTION_CZ_A2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDFIVATS_SECTION_CZ_A2 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 IDFIVATS_SECTION_CZ_A2. 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 IDFIVATS_SECTION_CZ_A2 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_IDFIVATS_SECTION_CZ_A2 TYPE STANDARD TABLE OF IDFIVATS_SECTION_CZ_A2,
      WA_IDFIVATS_SECTION_CZ_A2 TYPE IDFIVATS_SECTION_CZ_A2,
      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: <IDFIVATS_SECTION_CZ_A2> TYPE IDFIVATS_SECTION_CZ_A2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDFIVATS_SECTION_CZ_A2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDFIVATS_SECTION_CZ_A2
  INTO TABLE IT_IDFIVATS_SECTION_CZ_A2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDFIVATS_SECTION_CZ_A2
*  INTO TABLE @DATA(IT_IDFIVATS_SECTION_CZ_A22).
*--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_IDFIVATS_SECTION_CZ_A2 INDEX 1 INTO DATA(WA_IDFIVATS_SECTION_CZ_A22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDFIVATS_SECTION_CZ_A2 ASSIGNING <IDFIVATS_SECTION_CZ_A2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDFIVATS_SECTION_CZ_A2>-LINENR = 1.
<IDFIVATS_SECTION_CZ_A2>-STCEG = 1.
<IDFIVATS_SECTION_CZ_A2>-INVOICENR = 1.
<IDFIVATS_SECTION_CZ_A2>-VATDATE = 1.
<IDFIVATS_SECTION_CZ_A2>-STCEG_CZ = 1.

ENDLOOP.

LOOP AT IT_IDFIVATS_SECTION_CZ_A2 INTO WA_IDFIVATS_SECTION_CZ_A2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDFIVATS_SECTION_CZ_A2-VATDATE_CZ, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A2-STCEG_CTRY_CZ, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A2-HWBAS, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A2-HWSTE, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A2-HWBAS_L1, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A2-HWSTE_L1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDFIVATS_SECTION_CZ_A2 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_IDFIVATS_SECTION_CZ_A2 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_IDFIVATS_SECTION_CZ_A2 INTO WA_IDFIVATS_SECTION_CZ_A2.


*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 AU132, internal->external for field HWBAS
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-HWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-HWBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWSTE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-HWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-HWSTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWBAS_L1
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-HWBAS_L1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-HWBAS_L1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWSTE_L1
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-HWSTE_L1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-HWSTE_L1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWBAS_L2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-HWBAS_L2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-HWBAS_L2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field HWSTE_L2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-HWSTE_L2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-HWSTE_L2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NUMMR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-NUMMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-NUMMR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field USERFIELDNUM1
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-USERFIELDNUM1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-USERFIELDNUM1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field USERFIELDNUM2
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDFIVATS_SECTION_CZ_A2-USERFIELDNUM2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A2-USERFIELDNUM2.
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_IDFIVATS_SECTION_CZ_A2_STR, 
LINENR TYPE STRING,
STCEG TYPE STRING,
INVOICENR TYPE STRING,
VATDATE TYPE STRING,
STCEG_CZ TYPE STRING,
VATDATE_CZ TYPE STRING,
STCEG_CTRY_CZ TYPE STRING,
HWBAS TYPE STRING,
HWSTE TYPE STRING,
HWBAS_L1 TYPE STRING,
HWSTE_L1 TYPE STRING,
HWBAS_L2 TYPE STRING,
HWSTE_L2 TYPE STRING,
WAERS TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
NUMMR TYPE STRING,
KOART TYPE STRING,
NAME TYPE STRING,
OPBEL TYPE STRING,
USER_FIELD_1 TYPE STRING,
USER_FIELD_2 TYPE STRING,
USER_FIELD_3 TYPE STRING,
USER_FIELD_4 TYPE STRING,
USERFIELDNUM1 TYPE STRING,
USERFIELDNUM2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDFIVATS_SECTION_CZ_A2_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_IDFIVATS_SECTION_CZ_A2_STR-LINENR sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-STCEG sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-INVOICENR sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-VATDATE sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-STCEG_CZ sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-VATDATE_CZ sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-STCEG_CTRY_CZ sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-HWBAS sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-HWSTE sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-HWBAS_L1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-HWSTE_L1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-HWBAS_L2 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-HWSTE_L2 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-WAERS sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-BUKRS sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-BELNR sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-GJAHR sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-NUMMR sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-KOART sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-NAME sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-OPBEL sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-USER_FIELD_1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-USER_FIELD_2 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-USER_FIELD_3 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-USER_FIELD_4 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-USERFIELDNUM1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A2_STR-USERFIELDNUM2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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