ABAP Select data from SAP table /PM0/3FWC_WHERE_USED_SEARCHTAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PM0/3FWC_WHERE_USED_SEARCHTAB 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 /PM0/3FWC_WHERE_USED_SEARCHTAB. 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 /PM0/3FWC_WHERE_USED_SEARCHTAB 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_/PM0/3FWC_WHERE_USED_SEARCHTAB TYPE STANDARD TABLE OF /PM0/3FWC_WHERE_USED_SEARCHTAB,
      WA_/PM0/3FWC_WHERE_USED_SEARCHTAB TYPE /PM0/3FWC_WHERE_USED_SEARCHTAB,
      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: </PM0/3FWC_WHERE_USED_SEARCHTAB> TYPE /PM0/3FWC_WHERE_USED_SEARCHTAB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PM0/3FWC_WHERE_USED_SEARCHTAB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PM0/3FWC_WHERE_USED_SEARCHTAB
  INTO TABLE IT_/PM0/3FWC_WHERE_USED_SEARCHTAB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/3FWC_WHERE_USED_SEARCHTAB
*  INTO TABLE @DATA(IT_/PM0/3FWC_WHERE_USED_SEARCHTAB2).
*--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_/PM0/3FWC_WHERE_USED_SEARCHTAB INDEX 1 INTO DATA(WA_/PM0/3FWC_WHERE_USED_SEARCHTAB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PM0/3FWC_WHERE_USED_SEARCHTAB ASSIGNING </PM0/3FWC_WHERE_USED_SEARCHTAB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/3FWC_WHERE_USED_SEARCHTAB>-OPT_CLSNAME = 1.
</PM0/3FWC_WHERE_USED_SEARCHTAB>-OPT_IFNAME = 1.
</PM0/3FWC_WHERE_USED_SEARCHTAB>-OPT_TABL = 1.
</PM0/3FWC_WHERE_USED_SEARCHTAB>-OPT_SDLG = 1.
</PM0/3FWC_WHERE_USED_SEARCHTAB>-OPT_SUBM = 1.

ENDLOOP.

LOOP AT IT_/PM0/3FWC_WHERE_USED_SEARCHTAB INTO WA_/PM0/3FWC_WHERE_USED_SEARCHTAB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/3FWC_WHERE_USED_SEARCHTAB-OPT_DLG, sy-vline,
  WA_/PM0/3FWC_WHERE_USED_SEARCHTAB-OPT_CHMD, sy-vline,
  WA_/PM0/3FWC_WHERE_USED_SEARCHTAB-OPT_OBSOLETE_CLASS, sy-vline,
  WA_/PM0/3FWC_WHERE_USED_SEARCHTAB-OPT_ENTI, sy-vline,
  WA_/PM0/3FWC_WHERE_USED_SEARCHTAB-OPT_PERS, sy-vline,
  WA_/PM0/3FWC_WHERE_USED_SEARCHTAB-OPT_PROC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/3FWC_WHERE_USED_SEARCHTAB 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_/PM0/3FWC_WHERE_USED_SEARCHTAB 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_/PM0/3FWC_WHERE_USED_SEARCHTAB INTO WA_/PM0/3FWC_WHERE_USED_SEARCHTAB.


*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_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR, 
OPT_CLSNAME TYPE STRING,
OPT_IFNAME TYPE STRING,
OPT_TABL TYPE STRING,
OPT_SDLG TYPE STRING,
OPT_SUBM TYPE STRING,
OPT_DLG TYPE STRING,
OPT_CHMD TYPE STRING,
OPT_OBSOLETE_CLASS TYPE STRING,
OPT_ENTI TYPE STRING,
OPT_PERS TYPE STRING,
OPT_PROC TYPE STRING,
OPT_CTRL TYPE STRING,
OPT_STRAT TYPE STRING,
OPT_TARGET TYPE STRING,
OPT_CROSSREF TYPE STRING,
OPT_PAM TYPE STRING,
CLSNAME TYPE STRING,
IFNAME TYPE STRING,
TABLENAME TYPE STRING,
SDLGNAME TYPE STRING,
SUBMNAME TYPE STRING,
DLGNAME TYPE STRING,
CHMDNAME TYPE STRING,
OBSOLETE_CLASS TYPE STRING,
ENTINAME TYPE STRING,
PERSNAME TYPE STRING,
PROCNAME TYPE STRING,
CTRLNAME TYPE STRING,
STRATNAME TYPE STRING,
TARGNAME TYPE STRING,
MESSAGECLASSNAME TYPE STRING,
DEVCLASS TYPE STRING,
NAMESPACE TYPE STRING,
OBJECT TYPE STRING,
OBJTYP TYPE STRING,
APPLCMD TYPE STRING,
VIEWID TYPE STRING,
PROGNAME TYPE STRING,
OPT_VIEW TYPE STRING,
OPT_API TYPE STRING,
APICLSNAME TYPE STRING,
APIINTFNAME TYPE STRING,
APIMTHDNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_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_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_CLSNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_IFNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_TABL sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_SDLG sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_SUBM sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_DLG sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_CHMD sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_OBSOLETE_CLASS sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_ENTI sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_PERS sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_PROC sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_CTRL sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_STRAT sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_TARGET sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_CROSSREF sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_PAM sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-CLSNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-IFNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-TABLENAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-SDLGNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-SUBMNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-DLGNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-CHMDNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OBSOLETE_CLASS sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-ENTINAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-PERSNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-PROCNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-CTRLNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-STRATNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-TARGNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-MESSAGECLASSNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-DEVCLASS sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-NAMESPACE sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OBJECT sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OBJTYP sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-APPLCMD sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-VIEWID sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-PROGNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_VIEW sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-OPT_API sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-APICLSNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-APIINTFNAME sy-vline 
WA_/PM0/3FWC_WHERE_USED_SEARCHTAB_STR-APIMTHDNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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