ABAP Select data from SAP table IDFIVATS_SECTION_CZ_A4 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_A4 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_A4. 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_A4 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_A4 TYPE STANDARD TABLE OF IDFIVATS_SECTION_CZ_A4,
      WA_IDFIVATS_SECTION_CZ_A4 TYPE IDFIVATS_SECTION_CZ_A4,
      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_A4> TYPE IDFIVATS_SECTION_CZ_A4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IDFIVATS_SECTION_CZ_A4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IDFIVATS_SECTION_CZ_A4
  INTO TABLE IT_IDFIVATS_SECTION_CZ_A4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDFIVATS_SECTION_CZ_A4
*  INTO TABLE @DATA(IT_IDFIVATS_SECTION_CZ_A42).
*--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_A4 INDEX 1 INTO DATA(WA_IDFIVATS_SECTION_CZ_A42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IDFIVATS_SECTION_CZ_A4 ASSIGNING <IDFIVATS_SECTION_CZ_A4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDFIVATS_SECTION_CZ_A4>-LINENR = 1.
<IDFIVATS_SECTION_CZ_A4>-STCEG = 1.
<IDFIVATS_SECTION_CZ_A4>-INVOICENR = 1.
<IDFIVATS_SECTION_CZ_A4>-VATDATE = 1.
<IDFIVATS_SECTION_CZ_A4>-STCEG_CZ = 1.

ENDLOOP.

LOOP AT IT_IDFIVATS_SECTION_CZ_A4 INTO WA_IDFIVATS_SECTION_CZ_A4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDFIVATS_SECTION_CZ_A4-VATDATE_CZ, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A4-STCEG_CTRY_CZ, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A4-HWBAS, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A4-HWSTE, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A4-HWBAS_L1, sy-vline,
  WA_IDFIVATS_SECTION_CZ_A4-HWSTE_L1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDFIVATS_SECTION_CZ_A4 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_A4 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_A4 INTO WA_IDFIVATS_SECTION_CZ_A4.


*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_A4-HWBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-HWSTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-HWBAS_L1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-HWSTE_L1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-HWBAS_L2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-HWSTE_L2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-NUMMR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-USERFIELDNUM1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4-USERFIELDNUM2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFIVATS_SECTION_CZ_A4-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_A4_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,
SPECCODE TYPE STRING,
SPECARR 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_A4_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_A4_STR-LINENR sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-STCEG sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-INVOICENR sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-VATDATE sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-STCEG_CZ sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-VATDATE_CZ sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-STCEG_CTRY_CZ sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-HWBAS sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-HWSTE sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-HWBAS_L1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-HWSTE_L1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-HWBAS_L2 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-HWSTE_L2 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-WAERS sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-SPECCODE sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-SPECARR sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-BUKRS sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-BELNR sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-GJAHR sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-NUMMR sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-KOART sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-NAME sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-OPBEL sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-USER_FIELD_1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-USER_FIELD_2 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-USER_FIELD_3 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-USER_FIELD_4 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_STR-USERFIELDNUM1 sy-vline 
WA_IDFIVATS_SECTION_CZ_A4_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.