ABAP Select data from SAP table PPEARCH_CMP_FCAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPEARCH_CMP_FCAT
*  INTO TABLE @DATA(IT_PPEARCH_CMP_FCAT2).
*--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_PPEARCH_CMP_FCAT INDEX 1 INTO DATA(WA_PPEARCH_CMP_FCAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPEARCH_CMP_FCAT>-RECNO = 1.
<PPEARCH_CMP_FCAT>-RECNI = 1.
<PPEARCH_CMP_FCAT>-SELECTION = 1.
<PPEARCH_CMP_FCAT>-STATUS = 1.
<PPEARCH_CMP_FCAT>-ILEVEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPEARCH_CMP_FCAT-CLEVEL, sy-vline,
  WA_PPEARCH_CMP_FCAT-PVGUID, sy-vline,
  WA_PPEARCH_CMP_FCAT-PNGUID, sy-vline,
  WA_PPEARCH_CMP_FCAT-PAGUID, sy-vline,
  WA_PPEARCH_CMP_FCAT-OTYPE, sy-vline,
  WA_PPEARCH_CMP_FCAT-ATYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPEARCH_CMP_FCAT 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_PPEARCH_CMP_FCAT 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_PPEARCH_CMP_FCAT INTO WA_PPEARCH_CMP_FCAT.


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

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

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPEARCH_CMP_FCAT-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPEARCH_CMP_FCAT-AENNR.
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_PPEARCH_CMP_FCAT_STR, 
RECNO TYPE STRING,
RECNI TYPE STRING,
SELECTION TYPE STRING,
STATUS TYPE STRING,
ILEVEL TYPE STRING,
CLEVEL TYPE STRING,
PVGUID TYPE STRING,
PNGUID TYPE STRING,
PAGUID TYPE STRING,
OTYPE TYPE STRING,
ATYPE TYPE STRING,
APPLOBJ_TYPE TYPE STRING,
CLASS TYPE STRING,
CLINT TYPE STRING,
KLART TYPE STRING,
ARC_MODE_SET TYPE STRING,
ARC_MODE_PROP TYPE STRING,
ARC_MODE TYPE STRING,
OTYPE_DESC TYPE STRING,
PNAME TYPE STRING,
PVNAME TYPE STRING,
ALTNUM TYPE STRING,
PXOBJ TYPE STRING,
AENNR TYPE STRING,
CMPID TYPE STRING,
CMPID_EXT TYPE STRING,
ODESC TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
ERRFLG TYPE STRING,
ERRCOUNT TYPE STRING,
ERRMSG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPEARCH_CMP_FCAT_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_PPEARCH_CMP_FCAT_STR-RECNO sy-vline 
WA_PPEARCH_CMP_FCAT_STR-RECNI sy-vline 
WA_PPEARCH_CMP_FCAT_STR-SELECTION sy-vline 
WA_PPEARCH_CMP_FCAT_STR-STATUS sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ILEVEL sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CLEVEL sy-vline 
WA_PPEARCH_CMP_FCAT_STR-PVGUID sy-vline 
WA_PPEARCH_CMP_FCAT_STR-PNGUID sy-vline 
WA_PPEARCH_CMP_FCAT_STR-PAGUID sy-vline 
WA_PPEARCH_CMP_FCAT_STR-OTYPE sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ATYPE sy-vline 
WA_PPEARCH_CMP_FCAT_STR-APPLOBJ_TYPE sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CLASS sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CLINT sy-vline 
WA_PPEARCH_CMP_FCAT_STR-KLART sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ARC_MODE_SET sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ARC_MODE_PROP sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ARC_MODE sy-vline 
WA_PPEARCH_CMP_FCAT_STR-OTYPE_DESC sy-vline 
WA_PPEARCH_CMP_FCAT_STR-PNAME sy-vline 
WA_PPEARCH_CMP_FCAT_STR-PVNAME sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ALTNUM sy-vline 
WA_PPEARCH_CMP_FCAT_STR-PXOBJ sy-vline 
WA_PPEARCH_CMP_FCAT_STR-AENNR sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CMPID sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CMPID_EXT sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ODESC sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CREADAT sy-vline 
WA_PPEARCH_CMP_FCAT_STR-CREABY sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ERRFLG sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ERRCOUNT sy-vline 
WA_PPEARCH_CMP_FCAT_STR-ERRMSG sy-vline      INTO ld_text SEPARATED BY SPACE.

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