ABAP Select data from SAP table IINVGCSMSTFUTTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IINVGCSMSTFUTTP
*  INTO TABLE @DATA(IT_IINVGCSMSTFUTTP2).
*--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_IINVGCSMSTFUTTP INDEX 1 INTO DATA(WA_IINVGCSMSTFUTTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IINVGCSMSTFUTTP>-MANDT = 1.
<IINVGCSMSTFUTTP>-INVGCSMSTAFFUNITID = 1.
<IINVGCSMSTFUTTP>-INVGCSMPARTNERNUMBER = 1.
<IINVGCSMSTFUTTP>-INVGCSMRELATIONSHIP = 1.
<IINVGCSMSTFUTTP>-INVGCSMRELATEDENTITYTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IINVGCSMSTFUTTP-INVGCSMPARTNERNUMBERFOREDIT, sy-vline,
  WA_IINVGCSMSTFUTTP-INVGCSMRELATIONSHIPFOREDIT, sy-vline,
  WA_IINVGCSMSTFUTTP-INVGCSMISMAINPARTNER, sy-vline,
  WA_IINVGCSMSTFUTTP-VALIDFROM, sy-vline,
  WA_IINVGCSMSTFUTTP-VALIDTO, sy-vline,
  WA_IINVGCSMSTFUTTP-INVGCSMPARTNERFUNCTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IINVGCSMSTFUTTP 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_IINVGCSMSTFUTTP 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_IINVGCSMSTFUTTP INTO WA_IINVGCSMSTFUTTP.


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

*Conversion exit ALPHA, internal->external for field INVGCSMPARTNERNUMBERFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IINVGCSMSTFUTTP-INVGCSMPARTNERNUMBERFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IINVGCSMSTFUTTP-INVGCSMPARTNERNUMBERFOREDIT.
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_IINVGCSMSTFUTTP_STR, 
MANDT TYPE STRING,
INVGCSMSTAFFUNITID TYPE STRING,
INVGCSMPARTNERNUMBER TYPE STRING,
INVGCSMRELATIONSHIP TYPE STRING,
INVGCSMRELATEDENTITYTYPE TYPE STRING,
INVGCSMPARTNERNUMBERFOREDIT TYPE STRING,
INVGCSMRELATIONSHIPFOREDIT TYPE STRING,
INVGCSMISMAINPARTNER TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
INVGCSMPARTNERFUNCTION TYPE STRING,
FULLNAME TYPE STRING,
BUSINESSPARTNERUUID TYPE STRING,
INVGCSMISDELETEALLOWED TYPE STRING,
INVGCSMTARGETID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IINVGCSMSTFUTTP_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_IINVGCSMSTFUTTP_STR-MANDT sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMSTAFFUNITID sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMPARTNERNUMBER sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMRELATIONSHIP sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMRELATEDENTITYTYPE sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMPARTNERNUMBERFOREDIT sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMRELATIONSHIPFOREDIT sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMISMAINPARTNER sy-vline 
WA_IINVGCSMSTFUTTP_STR-VALIDFROM sy-vline 
WA_IINVGCSMSTFUTTP_STR-VALIDTO sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMPARTNERFUNCTION sy-vline 
WA_IINVGCSMSTFUTTP_STR-FULLNAME sy-vline 
WA_IINVGCSMSTFUTTP_STR-BUSINESSPARTNERUUID sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMISDELETEALLOWED sy-vline 
WA_IINVGCSMSTFUTTP_STR-INVGCSMTARGETID sy-vline      INTO ld_text SEPARATED BY SPACE.

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