ABAP Select data from SAP table ISTATIFACE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISTATIFACE
*  INTO TABLE @DATA(IT_ISTATIFACE2).
*--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_ISTATIFACE INDEX 1 INTO DATA(WA_ISTATIFACE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISTATIFACE>-ID = 1.
<ISTATIFACE>-STATUS = 1.
<ISTATIFACE>-SEL_CUA = 1.
<ISTATIFACE>-SEL_LANGU = 1.
<ISTATIFACE>-SEL_FUNC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISTATIFACE-SEL_HANDL, sy-vline,
  WA_ISTATIFACE-SEL_DOCU, sy-vline,
  WA_ISTATIFACE-SEL_OTHER, sy-vline,
  WA_ISTATIFACE-SEL_STEXT, sy-vline,
  WA_ISTATIFACE-SEL_CUSTO, sy-vline,
  WA_ISTATIFACE-CATTPROT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISTATIFACE 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_ISTATIFACE 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_ISTATIFACE INTO WA_ISTATIFACE.


*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 CUNIT, internal->external for field TWB_WKUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISTATIFACE-TWB_WKUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISTATIFACE-TWB_WKUNIT.
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_ISTATIFACE_STR, 
ID TYPE STRING,
STATUS TYPE STRING,
SEL_CUA TYPE STRING,
SEL_LANGU TYPE STRING,
SEL_FUNC TYPE STRING,
SEL_HANDL TYPE STRING,
SEL_DOCU TYPE STRING,
SEL_OTHER TYPE STRING,
SEL_STEXT TYPE STRING,
SEL_CUSTO TYPE STRING,
CATTPROT TYPE STRING,
CATTLNUM TYPE STRING,
TWB_WKREQ TYPE STRING,
TWB_WKUNIT TYPE STRING,
NOTE_TEXT TYPE STRING,
RFCDEST TYPE STRING,
LOGID TYPE STRING,
OBJ_LNR TYPE STRING,
TSTRC TYPE STRING,
TSTLOGID TYPE STRING,
TEST_FINISHED TYPE STRING,
PLANSTART TYPE STRING,
PLANEND TYPE STRING,
PLANDUR TYPE STRING,
ACTULSTART TYPE STRING,
ACTULEND TYPE STRING,
ACTULDUR TYPE STRING,
RESTWORK TYPE STRING,
DONE TYPE STRING,
PRIORITY TYPE STRING,
ISP_PLAN TYPE STRING,
ISP_ELEM TYPE STRING,
ISP_CODE TYPE STRING,
STAT_REL TYPE STRING,
ISP_CODE2 TYPE STRING,
ISP_CODE3 TYPE STRING,
FDATE TYPE STRING,
FUSER TYPE STRING,
LDATE TYPE STRING,
LUSER TYPE STRING,
FTIME TYPE STRING,
LTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISTATIFACE_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_ISTATIFACE_STR-ID sy-vline 
WA_ISTATIFACE_STR-STATUS sy-vline 
WA_ISTATIFACE_STR-SEL_CUA sy-vline 
WA_ISTATIFACE_STR-SEL_LANGU sy-vline 
WA_ISTATIFACE_STR-SEL_FUNC sy-vline 
WA_ISTATIFACE_STR-SEL_HANDL sy-vline 
WA_ISTATIFACE_STR-SEL_DOCU sy-vline 
WA_ISTATIFACE_STR-SEL_OTHER sy-vline 
WA_ISTATIFACE_STR-SEL_STEXT sy-vline 
WA_ISTATIFACE_STR-SEL_CUSTO sy-vline 
WA_ISTATIFACE_STR-CATTPROT sy-vline 
WA_ISTATIFACE_STR-CATTLNUM sy-vline 
WA_ISTATIFACE_STR-TWB_WKREQ sy-vline 
WA_ISTATIFACE_STR-TWB_WKUNIT sy-vline 
WA_ISTATIFACE_STR-NOTE_TEXT sy-vline 
WA_ISTATIFACE_STR-RFCDEST sy-vline 
WA_ISTATIFACE_STR-LOGID sy-vline 
WA_ISTATIFACE_STR-OBJ_LNR sy-vline 
WA_ISTATIFACE_STR-TSTRC sy-vline 
WA_ISTATIFACE_STR-TSTLOGID sy-vline 
WA_ISTATIFACE_STR-TEST_FINISHED sy-vline 
WA_ISTATIFACE_STR-PLANSTART sy-vline 
WA_ISTATIFACE_STR-PLANEND sy-vline 
WA_ISTATIFACE_STR-PLANDUR sy-vline 
WA_ISTATIFACE_STR-ACTULSTART sy-vline 
WA_ISTATIFACE_STR-ACTULEND sy-vline 
WA_ISTATIFACE_STR-ACTULDUR sy-vline 
WA_ISTATIFACE_STR-RESTWORK sy-vline 
WA_ISTATIFACE_STR-DONE sy-vline 
WA_ISTATIFACE_STR-PRIORITY sy-vline 
WA_ISTATIFACE_STR-ISP_PLAN sy-vline 
WA_ISTATIFACE_STR-ISP_ELEM sy-vline 
WA_ISTATIFACE_STR-ISP_CODE sy-vline 
WA_ISTATIFACE_STR-STAT_REL sy-vline 
WA_ISTATIFACE_STR-ISP_CODE2 sy-vline 
WA_ISTATIFACE_STR-ISP_CODE3 sy-vline 
WA_ISTATIFACE_STR-FDATE sy-vline 
WA_ISTATIFACE_STR-FUSER sy-vline 
WA_ISTATIFACE_STR-LDATE sy-vline 
WA_ISTATIFACE_STR-LUSER sy-vline 
WA_ISTATIFACE_STR-FTIME sy-vline 
WA_ISTATIFACE_STR-LTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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