ABAP Select data from SAP table FIKZ_S_REGINV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIKZ_S_REGINV
*  INTO TABLE @DATA(IT_FIKZ_S_REGINV2).
*--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_FIKZ_S_REGINV INDEX 1 INTO DATA(WA_FIKZ_S_REGINV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIKZ_S_REGINV>-INV_TYPE = 1.
<FIKZ_S_REGINV>-DATE_REG = 1.
<FIKZ_S_REGINV>-INV_NUM = 1.
<FIKZ_S_REGINV>-INV_DATE = 1.
<FIKZ_S_REGINV>-INVADD_NUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIKZ_S_REGINV-INVADD_DATE, sy-vline,
  WA_FIKZ_S_REGINV-CORR_NUM, sy-vline,
  WA_FIKZ_S_REGINV-CORR_DATE, sy-vline,
  WA_FIKZ_S_REGINV-CONTR_NUM, sy-vline,
  WA_FIKZ_S_REGINV-CONTR_DATE, sy-vline,
  WA_FIKZ_S_REGINV-PARTN_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIKZ_S_REGINV 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_FIKZ_S_REGINV 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_FIKZ_S_REGINV INTO WA_FIKZ_S_REGINV.


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

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

*Conversion exit EXCRT, internal->external for field EXCH_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_REGINV-EXCH_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_REGINV-EXCH_RATE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field DECL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FIKZ_S_REGINV-DECL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIKZ_S_REGINV-DECL_YEAR.
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_FIKZ_S_REGINV_STR, 
INV_TYPE TYPE STRING,
DATE_REG TYPE STRING,
INV_NUM TYPE STRING,
INV_DATE TYPE STRING,
INVADD_NUM TYPE STRING,
INVADD_DATE TYPE STRING,
CORR_NUM TYPE STRING,
CORR_DATE TYPE STRING,
CONTR_NUM TYPE STRING,
CONTR_DATE TYPE STRING,
PARTN_NAME TYPE STRING,
PARTN_RNN TYPE STRING,
PARTN_INN TYPE STRING,
PARTN_KPP TYPE STRING,
PARTN_UNP TYPE STRING,
PARTN_BIN TYPE STRING,
PARTN_IIN TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
CURR_CODE TYPE STRING,
CURR_CODE_F TYPE STRING,
EXCH_RATE TYPE STRING,
BASE_AMNT_LC TYPE STRING,
VAT_AMNT_LC TYPE STRING,
GROSS_AMNT_LC TYPE STRING,
BASE_AMNT_FC TYPE STRING,
VAT_AMNT_FC TYPE STRING,
GROSS_AMNT_FC TYPE STRING,
ACTIVITY_TYPE TYPE STRING,
USNAM TYPE STRING,
TMSTMP TYPE STRING,
LAND TYPE STRING,
STAT TYPE STRING,
VATOFFSET_DATE TYPE STRING,
APPX7_SEQ_NUM TYPE STRING,
DECL_QUART TYPE STRING,
DECL_MONTH TYPE STRING,
DECL_YEAR TYPE STRING,
DECL_TYPE TYPE STRING,
DECL_SUBMIT_DATE TYPE STRING,
AUTOPOST TYPE STRING,
REVERSAL TYPE STRING,
APPD_NUM TYPE STRING,
ADD_INFO TYPE STRING,
DOC_STATUS TYPE STRING,
EINVOICE_ID TYPE STRING,
EXCH_TYP TYPE STRING,
EXTERNAL_INVOICE_ID TYPE STRING,
REGISTRATION_NUMBER TYPE STRING,
CUST_CAT TYPE STRING,
HP_REGDATE TYPE STRING,
JNT_VENT_INV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIKZ_S_REGINV_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_FIKZ_S_REGINV_STR-INV_TYPE sy-vline 
WA_FIKZ_S_REGINV_STR-DATE_REG sy-vline 
WA_FIKZ_S_REGINV_STR-INV_NUM sy-vline 
WA_FIKZ_S_REGINV_STR-INV_DATE sy-vline 
WA_FIKZ_S_REGINV_STR-INVADD_NUM sy-vline 
WA_FIKZ_S_REGINV_STR-INVADD_DATE sy-vline 
WA_FIKZ_S_REGINV_STR-CORR_NUM sy-vline 
WA_FIKZ_S_REGINV_STR-CORR_DATE sy-vline 
WA_FIKZ_S_REGINV_STR-CONTR_NUM sy-vline 
WA_FIKZ_S_REGINV_STR-CONTR_DATE sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_NAME sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_RNN sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_INN sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_KPP sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_UNP sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_BIN sy-vline 
WA_FIKZ_S_REGINV_STR-PARTN_IIN sy-vline 
WA_FIKZ_S_REGINV_STR-LIFNR sy-vline 
WA_FIKZ_S_REGINV_STR-KUNNR sy-vline 
WA_FIKZ_S_REGINV_STR-CURR_CODE sy-vline 
WA_FIKZ_S_REGINV_STR-CURR_CODE_F sy-vline 
WA_FIKZ_S_REGINV_STR-EXCH_RATE sy-vline 
WA_FIKZ_S_REGINV_STR-BASE_AMNT_LC sy-vline 
WA_FIKZ_S_REGINV_STR-VAT_AMNT_LC sy-vline 
WA_FIKZ_S_REGINV_STR-GROSS_AMNT_LC sy-vline 
WA_FIKZ_S_REGINV_STR-BASE_AMNT_FC sy-vline 
WA_FIKZ_S_REGINV_STR-VAT_AMNT_FC sy-vline 
WA_FIKZ_S_REGINV_STR-GROSS_AMNT_FC sy-vline 
WA_FIKZ_S_REGINV_STR-ACTIVITY_TYPE sy-vline 
WA_FIKZ_S_REGINV_STR-USNAM sy-vline 
WA_FIKZ_S_REGINV_STR-TMSTMP sy-vline 
WA_FIKZ_S_REGINV_STR-LAND sy-vline 
WA_FIKZ_S_REGINV_STR-STAT sy-vline 
WA_FIKZ_S_REGINV_STR-VATOFFSET_DATE sy-vline 
WA_FIKZ_S_REGINV_STR-APPX7_SEQ_NUM sy-vline 
WA_FIKZ_S_REGINV_STR-DECL_QUART sy-vline 
WA_FIKZ_S_REGINV_STR-DECL_MONTH sy-vline 
WA_FIKZ_S_REGINV_STR-DECL_YEAR sy-vline 
WA_FIKZ_S_REGINV_STR-DECL_TYPE sy-vline 
WA_FIKZ_S_REGINV_STR-DECL_SUBMIT_DATE sy-vline 
WA_FIKZ_S_REGINV_STR-AUTOPOST sy-vline 
WA_FIKZ_S_REGINV_STR-REVERSAL sy-vline 
WA_FIKZ_S_REGINV_STR-APPD_NUM sy-vline 
WA_FIKZ_S_REGINV_STR-ADD_INFO sy-vline 
WA_FIKZ_S_REGINV_STR-DOC_STATUS sy-vline 
WA_FIKZ_S_REGINV_STR-EINVOICE_ID sy-vline 
WA_FIKZ_S_REGINV_STR-EXCH_TYP sy-vline 
WA_FIKZ_S_REGINV_STR-EXTERNAL_INVOICE_ID sy-vline 
WA_FIKZ_S_REGINV_STR-REGISTRATION_NUMBER sy-vline 
WA_FIKZ_S_REGINV_STR-CUST_CAT sy-vline 
WA_FIKZ_S_REGINV_STR-HP_REGDATE sy-vline 
WA_FIKZ_S_REGINV_STR-JNT_VENT_INV sy-vline      INTO ld_text SEPARATED BY SPACE.

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