ABAP Select data from SAP table EIV_AISINO_DC_INVOICE_RET_HD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIV_AISINO_DC_INVOICE_RET_HD
*  INTO TABLE @DATA(IT_EIV_AISINO_DC_INVOICE_RET_HD2).
*--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_EIV_AISINO_DC_INVOICE_RET_HD INDEX 1 INTO DATA(WA_EIV_AISINO_DC_INVOICE_RET_HD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIV_AISINO_DC_INVOICE_RET_HD>-INVC_NMBR = 1.
<EIV_AISINO_DC_INVOICE_RET_HD>-INVC_CODE = 1.
<EIV_AISINO_DC_INVOICE_RET_HD>-INVOICE_REF_NUMBER = 1.
<EIV_AISINO_DC_INVOICE_RET_HD>-DOCDATE = 1.
<EIV_AISINO_DC_INVOICE_RET_HD>-INVKIND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIV_AISINO_DC_INVOICE_RET_HD-DOCTYPE, sy-vline,
  WA_EIV_AISINO_DC_INVOICE_RET_HD-CUSTNR, sy-vline,
  WA_EIV_AISINO_DC_INVOICE_RET_HD-CUSTNAME, sy-vline,
  WA_EIV_AISINO_DC_INVOICE_RET_HD-CUSTTAXNR, sy-vline,
  WA_EIV_AISINO_DC_INVOICE_RET_HD-CUSTADDRTEL, sy-vline,
  WA_EIV_AISINO_DC_INVOICE_RET_HD-CUSTBANKACCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIV_AISINO_DC_INVOICE_RET_HD 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_EIV_AISINO_DC_INVOICE_RET_HD 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_EIV_AISINO_DC_INVOICE_RET_HD INTO WA_EIV_AISINO_DC_INVOICE_RET_HD.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EIV_AISINO_DC_INVOICE_RET_HD_STR, 
INVC_NMBR TYPE STRING,
INVC_CODE TYPE STRING,
INVOICE_REF_NUMBER TYPE STRING,
DOCDATE TYPE STRING,
INVKIND TYPE STRING,
DOCTYPE TYPE STRING,
CUSTNR TYPE STRING,
CUSTNAME TYPE STRING,
CUSTTAXNR TYPE STRING,
CUSTADDRTEL TYPE STRING,
CUSTBANKACCT TYPE STRING,
MEMO TYPE STRING,
MEMO2 TYPE STRING,
REFINVCODE TYPE STRING,
REFINVNR TYPE STRING,
REDNOTICENR TYPE STRING,
CONSIGNERNAME TYPE STRING,
CONSIGNERTAXNR TYPE STRING,
ORIGINVIAARRIVALPLACE TYPE STRING,
VEHICLEKINDNO TYPE STRING,
VEHICLETONNAGE TYPE STRING,
FREIGHTMENO TYPE STRING,
TAXDEDUCTION TYPE STRING,
INVDATE TYPE STRING,
MACHINENR TYPE STRING,
CANCELLED TYPE STRING,
DOCNR TYPE STRING,
SHIPPERNAME TYPE STRING,
SHIPPERTAXNR TYPE STRING,
ISSUER TYPE STRING,
CHECKER TYPE STRING,
PAYEE TYPE STRING,
SELLERBANKACCT TYPE STRING,
SELLERADDRESSTEL TYPE STRING,
TOTALAMOUNT TYPE STRING,
TOTALTAX TYPE STRING,
ISLIST TYPE STRING,
INVSTOCK TYPE STRING,
INCLUDETAX TYPE STRING,
PRINTCOUNT TYPE STRING,
BINVKIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIV_AISINO_DC_INVOICE_RET_HD_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_EIV_AISINO_DC_INVOICE_RET_HD_STR-INVC_NMBR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-INVC_CODE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-INVOICE_REF_NUMBER sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-DOCDATE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-INVKIND sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-DOCTYPE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CUSTNR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CUSTNAME sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CUSTTAXNR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CUSTADDRTEL sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CUSTBANKACCT sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-MEMO sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-MEMO2 sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-REFINVCODE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-REFINVNR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-REDNOTICENR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CONSIGNERNAME sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CONSIGNERTAXNR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-ORIGINVIAARRIVALPLACE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-VEHICLEKINDNO sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-VEHICLETONNAGE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-FREIGHTMENO sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-TAXDEDUCTION sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-INVDATE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-MACHINENR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CANCELLED sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-DOCNR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-SHIPPERNAME sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-SHIPPERTAXNR sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-ISSUER sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-CHECKER sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-PAYEE sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-SELLERBANKACCT sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-SELLERADDRESSTEL sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-TOTALAMOUNT sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-TOTALTAX sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-ISLIST sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-INVSTOCK sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-INCLUDETAX sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-PRINTCOUNT sy-vline 
WA_EIV_AISINO_DC_INVOICE_RET_HD_STR-BINVKIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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