ABAP Select data from SAP table EIV_AISINO_EI_INVOICE_ITM 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_EI_INVOICE_ITM 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_EI_INVOICE_ITM. 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_EI_INVOICE_ITM 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_EI_INVOICE_ITM TYPE STANDARD TABLE OF EIV_AISINO_EI_INVOICE_ITM,
      WA_EIV_AISINO_EI_INVOICE_ITM TYPE EIV_AISINO_EI_INVOICE_ITM,
      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_EI_INVOICE_ITM> TYPE EIV_AISINO_EI_INVOICE_ITM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EIV_AISINO_EI_INVOICE_ITM
*  INTO TABLE @DATA(IT_EIV_AISINO_EI_INVOICE_ITM2).
*--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_EI_INVOICE_ITM INDEX 1 INTO DATA(WA_EIV_AISINO_EI_INVOICE_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EIV_AISINO_EI_INVOICE_ITM>-XMMC = 1.
<EIV_AISINO_EI_INVOICE_ITM>-XMDW = 1.
<EIV_AISINO_EI_INVOICE_ITM>-GGXH = 1.
<EIV_AISINO_EI_INVOICE_ITM>-XMSL = 1.
<EIV_AISINO_EI_INVOICE_ITM>-HSBZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EIV_AISINO_EI_INVOICE_ITM-FPHXZ, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_ITM-XMDJ, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_ITM-SPBM, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_ITM-ZXBM, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_ITM-YHZCBS, sy-vline,
  WA_EIV_AISINO_EI_INVOICE_ITM-LSLBS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EIV_AISINO_EI_INVOICE_ITM 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_EI_INVOICE_ITM 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_EI_INVOICE_ITM INTO WA_EIV_AISINO_EI_INVOICE_ITM.


*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_EI_INVOICE_ITM_STR, 
XMMC TYPE STRING,
XMDW TYPE STRING,
GGXH TYPE STRING,
XMSL TYPE STRING,
HSBZ TYPE STRING,
FPHXZ TYPE STRING,
XMDJ TYPE STRING,
SPBM TYPE STRING,
ZXBM TYPE STRING,
YHZCBS TYPE STRING,
LSLBS TYPE STRING,
ZSTSGL TYPE STRING,
KCE TYPE STRING,
XMJE TYPE STRING,
SL TYPE STRING,
SE TYPE STRING,
BYZD1 TYPE STRING,
BYZD2 TYPE STRING,
BYZD3 TYPE STRING,
BYZD4 TYPE STRING,
BYZD5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EIV_AISINO_EI_INVOICE_ITM_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_EI_INVOICE_ITM_STR-XMMC sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-XMDW sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-GGXH sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-XMSL sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-HSBZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-FPHXZ sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-XMDJ sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-SPBM sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-ZXBM sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-YHZCBS sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-LSLBS sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-ZSTSGL sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-KCE sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-XMJE sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-SL sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-SE sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-BYZD1 sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-BYZD2 sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-BYZD3 sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-BYZD4 sy-vline 
WA_EIV_AISINO_EI_INVOICE_ITM_STR-BYZD5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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