ABAP Select data from SAP table INV_INV_TRANSF_CORE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INV_INV_TRANSF_CORE
*  INTO TABLE @DATA(IT_INV_INV_TRANSF_CORE2).
*--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_INV_INV_TRANSF_CORE INDEX 1 INTO DATA(WA_INV_INV_TRANSF_CORE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INV_INV_TRANSF_CORE>-INT_INV_DOC_NO = 1.
<INV_INV_TRANSF_CORE>-INT_INV_LINE_NO = 1.
<INV_INV_TRANSF_CORE>-DATE_OF_RECEIPT = 1.
<INV_INV_TRANSF_CORE>-INVOICE_DATE = 1.
<INV_INV_TRANSF_CORE>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INV_INV_TRANSF_CORE-THBLN_EXT, sy-vline,
  WA_INV_INV_TRANSF_CORE-THBLN_TYPE, sy-vline,
  WA_INV_INV_TRANSF_CORE-GJAHR, sy-vline,
  WA_INV_INV_TRANSF_CORE-THPRD, sy-vline,
  WA_INV_INV_TRANSF_CORE-THPDT, sy-vline,
  WA_INV_INV_TRANSF_CORE-THPST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INV_INV_TRANSF_CORE 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_INV_INV_TRANSF_CORE 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_INV_INV_TRANSF_CORE INTO WA_INV_INV_TRANSF_CORE.


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

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

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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_INV_INV_TRANSF_CORE-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INV_INV_TRANSF_CORE-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_INV_INV_TRANSF_CORE-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INV_INV_TRANSF_CORE-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_INV_INV_TRANSF_CORE-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_INV_INV_TRANSF_CORE-SEGMENT.
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_INV_INV_TRANSF_CORE_STR, 
INT_INV_DOC_NO TYPE STRING,
INT_INV_LINE_NO TYPE STRING,
DATE_OF_RECEIPT TYPE STRING,
INVOICE_DATE TYPE STRING,
BUKRS TYPE STRING,
THBLN_EXT TYPE STRING,
THBLN_TYPE TYPE STRING,
GJAHR TYPE STRING,
THPRD TYPE STRING,
THPDT TYPE STRING,
THPST TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
TAXBW TYPE STRING,
STPRZ TYPE STRING,
MWSKZ TYPE STRING,
RECEIVER_TYPE TYPE STRING,
INT_RECEIVER TYPE STRING,
SENDER_TYPE TYPE STRING,
INT_SENDER TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
INVCAT TYPE STRING,
LINE_TYPE TYPE STRING,
LINE_CONTENT TYPE STRING,
INT_LINE_REF_NO TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PRCTR TYPE STRING,
PS_PSP_PNR TYPE STRING,
QUANTITY TYPE STRING,
MEINS TYPE STRING,
PAYLOCH TYPE STRING,
PAYLOCV TYPE STRING,
INV_BVT TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGE_DATE TYPE STRING,
SBASW TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
DPPRC TYPE STRING,
APERIODIC TYPE STRING,
KEYPP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INV_INV_TRANSF_CORE_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_INV_INV_TRANSF_CORE_STR-INT_INV_DOC_NO sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INT_INV_LINE_NO sy-vline 
WA_INV_INV_TRANSF_CORE_STR-DATE_OF_RECEIPT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INVOICE_DATE sy-vline 
WA_INV_INV_TRANSF_CORE_STR-BUKRS sy-vline 
WA_INV_INV_TRANSF_CORE_STR-THBLN_EXT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-THBLN_TYPE sy-vline 
WA_INV_INV_TRANSF_CORE_STR-GJAHR sy-vline 
WA_INV_INV_TRANSF_CORE_STR-THPRD sy-vline 
WA_INV_INV_TRANSF_CORE_STR-THPDT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-THPST sy-vline 
WA_INV_INV_TRANSF_CORE_STR-WAERS sy-vline 
WA_INV_INV_TRANSF_CORE_STR-BETRW sy-vline 
WA_INV_INV_TRANSF_CORE_STR-TAXBW sy-vline 
WA_INV_INV_TRANSF_CORE_STR-STPRZ sy-vline 
WA_INV_INV_TRANSF_CORE_STR-MWSKZ sy-vline 
WA_INV_INV_TRANSF_CORE_STR-RECEIVER_TYPE sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INT_RECEIVER sy-vline 
WA_INV_INV_TRANSF_CORE_STR-SENDER_TYPE sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INT_SENDER sy-vline 
WA_INV_INV_TRANSF_CORE_STR-GPART sy-vline 
WA_INV_INV_TRANSF_CORE_STR-VKONT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-VTREF sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INVCAT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-LINE_TYPE sy-vline 
WA_INV_INV_TRANSF_CORE_STR-LINE_CONTENT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INT_LINE_REF_NO sy-vline 
WA_INV_INV_TRANSF_CORE_STR-KOSTL sy-vline 
WA_INV_INV_TRANSF_CORE_STR-AUFNR sy-vline 
WA_INV_INV_TRANSF_CORE_STR-PRCTR sy-vline 
WA_INV_INV_TRANSF_CORE_STR-PS_PSP_PNR sy-vline 
WA_INV_INV_TRANSF_CORE_STR-QUANTITY sy-vline 
WA_INV_INV_TRANSF_CORE_STR-MEINS sy-vline 
WA_INV_INV_TRANSF_CORE_STR-PAYLOCH sy-vline 
WA_INV_INV_TRANSF_CORE_STR-PAYLOCV sy-vline 
WA_INV_INV_TRANSF_CORE_STR-INV_BVT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-HVORG sy-vline 
WA_INV_INV_TRANSF_CORE_STR-TVORG sy-vline 
WA_INV_INV_TRANSF_CORE_STR-CHANGED_BY sy-vline 
WA_INV_INV_TRANSF_CORE_STR-CHANGE_DATE sy-vline 
WA_INV_INV_TRANSF_CORE_STR-SBASW sy-vline 
WA_INV_INV_TRANSF_CORE_STR-GSBER sy-vline 
WA_INV_INV_TRANSF_CORE_STR-SEGMENT sy-vline 
WA_INV_INV_TRANSF_CORE_STR-DPPRC sy-vline 
WA_INV_INV_TRANSF_CORE_STR-APERIODIC sy-vline 
WA_INV_INV_TRANSF_CORE_STR-KEYPP sy-vline      INTO ld_text SEPARATED BY SPACE.

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