ABAP Select data from SAP table /PTGWFI/F_SMIMTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PTGWFI/F_SMIMTR 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 /PTGWFI/F_SMIMTR. 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 /PTGWFI/F_SMIMTR 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_/PTGWFI/F_SMIMTR TYPE STANDARD TABLE OF /PTGWFI/F_SMIMTR,
      WA_/PTGWFI/F_SMIMTR TYPE /PTGWFI/F_SMIMTR,
      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: </PTGWFI/F_SMIMTR> TYPE /PTGWFI/F_SMIMTR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PTGWFI/F_SMIMTR
  INTO TABLE IT_/PTGWFI/F_SMIMTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PTGWFI/F_SMIMTR
*  INTO TABLE @DATA(IT_/PTGWFI/F_SMIMTR2).
*--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_/PTGWFI/F_SMIMTR INDEX 1 INTO DATA(WA_/PTGWFI/F_SMIMTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PTGWFI/F_SMIMTR ASSIGNING </PTGWFI/F_SMIMTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PTGWFI/F_SMIMTR>-MANDT = 1.
</PTGWFI/F_SMIMTR>-DOCNUM = 1.
</PTGWFI/F_SMIMTR>-ARCHIV_ID = 1.
</PTGWFI/F_SMIMTR>-IMAGE_ID = 1.
</PTGWFI/F_SMIMTR>-IMAGE_DOC_TYPE = 1.

ENDLOOP.

LOOP AT IT_/PTGWFI/F_SMIMTR INTO WA_/PTGWFI/F_SMIMTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PTGWFI/F_SMIMTR-OBJTYPE, sy-vline,
  WA_/PTGWFI/F_SMIMTR-OBJECTID, sy-vline,
  WA_/PTGWFI/F_SMIMTR-SREASON, sy-vline,
  WA_/PTGWFI/F_SMIMTR-LST_AGENT, sy-vline,
  WA_/PTGWFI/F_SMIMTR-LST_USER, sy-vline,
  WA_/PTGWFI/F_SMIMTR-TO_AGENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PTGWFI/F_SMIMTR 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_/PTGWFI/F_SMIMTR 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_/PTGWFI/F_SMIMTR INTO WA_/PTGWFI/F_SMIMTR.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PTGWFI/F_SMIMTR-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PTGWFI/F_SMIMTR-BELNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AU132, internal->external for field AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_/PTGWFI/F_SMIMTR-AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PTGWFI/F_SMIMTR-AMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PONUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PTGWFI/F_SMIMTR-PONUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PTGWFI/F_SMIMTR-PONUMBER.
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_/PTGWFI/F_SMIMTR_STR, 
MANDT TYPE STRING,
DOCNUM TYPE STRING,
ARCHIV_ID TYPE STRING,
IMAGE_ID TYPE STRING,
IMAGE_DOC_TYPE TYPE STRING,
OBJTYPE TYPE STRING,
OBJECTID TYPE STRING,
SREASON TYPE STRING,
LST_AGENT TYPE STRING,
LST_USER TYPE STRING,
TO_AGENT TYPE STRING,
L_OPTYP TYPE STRING,
L_OPNUM TYPE STRING,
L_OPST TYPE STRING,
UPDDT TYPE STRING,
UPDTM TYPE STRING,
ZSMIST TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
EKORG TYPE STRING,
LIFNR TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
INVOICENO TYPE STRING,
INVOICEDATE TYPE STRING,
PONUMBER TYPE STRING,
DOCUMENTTYPE TYPE STRING,
VENDOR_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PTGWFI/F_SMIMTR_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_/PTGWFI/F_SMIMTR_STR-MANDT sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-DOCNUM sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-ARCHIV_ID sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-IMAGE_ID sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-IMAGE_DOC_TYPE sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-OBJTYPE sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-OBJECTID sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-SREASON sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-LST_AGENT sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-LST_USER sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-TO_AGENT sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-L_OPTYP sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-L_OPNUM sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-L_OPST sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-UPDDT sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-UPDTM sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-ZSMIST sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-BUKRS sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-BELNR sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-GJAHR sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-EKORG sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-LIFNR sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-AMOUNT sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-CURRENCY sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-INVOICENO sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-INVOICEDATE sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-PONUMBER sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-DOCUMENTTYPE sy-vline 
WA_/PTGWFI/F_SMIMTR_STR-VENDOR_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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