ABAP Select data from SAP table KWPWPHIO into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KWPWPHIO
*  INTO TABLE @DATA(IT_KWPWPHIO2).
*--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_KWPWPHIO INDEX 1 INTO DATA(WA_KWPWPHIO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KWPWPHIO>-PHIO_ID = 1.
<KWPWPHIO>-PH_CLASS = 1.
<KWPWPHIO>-LOIO_ID = 1.
<KWPWPHIO>-LO_CLASS = 1.
<KWPWPHIO>-STATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KWPWPHIO-DESCRIPT, sy-vline,
  WA_KWPWPHIO-LANGU, sy-vline,
  WA_KWPWPHIO-CREA_USER, sy-vline,
  WA_KWPWPHIO-CREA_TIME, sy-vline,
  WA_KWPWPHIO-CHNG_USER, sy-vline,
  WA_KWPWPHIO-CHNG_TIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KWPWPHIO 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_KWPWPHIO 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_KWPWPHIO INTO WA_KWPWPHIO.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_KWPWPHIO-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KWPWPHIO-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CREA_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_KWPWPHIO-CREA_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KWPWPHIO-CREA_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHNG_TIME
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_KWPWPHIO-CHNG_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KWPWPHIO-CHNG_TIME.
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_KWPWPHIO_STR, 
PHIO_ID TYPE STRING,
PH_CLASS TYPE STRING,
LOIO_ID TYPE STRING,
LO_CLASS TYPE STRING,
STATE TYPE STRING,
DESCRIPT TYPE STRING,
LANGU TYPE STRING,
CREA_USER TYPE STRING,
CREA_TIME TYPE STRING,
CHNG_USER TYPE STRING,
CHNG_TIME TYPE STRING,
STOR_CAT TYPE STRING,
DOC_FORMAT TYPE STRING,
DOC_PROT TYPE STRING,
PROP01 TYPE STRING,
PROP02 TYPE STRING,
PROP03 TYPE STRING,
PROP04 TYPE STRING,
PROP05 TYPE STRING,
PROP06 TYPE STRING,
PROP07 TYPE STRING,
PROP08 TYPE STRING,
PROP09 TYPE STRING,
PROP10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KWPWPHIO_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_KWPWPHIO_STR-PHIO_ID sy-vline 
WA_KWPWPHIO_STR-PH_CLASS sy-vline 
WA_KWPWPHIO_STR-LOIO_ID sy-vline 
WA_KWPWPHIO_STR-LO_CLASS sy-vline 
WA_KWPWPHIO_STR-STATE sy-vline 
WA_KWPWPHIO_STR-DESCRIPT sy-vline 
WA_KWPWPHIO_STR-LANGU sy-vline 
WA_KWPWPHIO_STR-CREA_USER sy-vline 
WA_KWPWPHIO_STR-CREA_TIME sy-vline 
WA_KWPWPHIO_STR-CHNG_USER sy-vline 
WA_KWPWPHIO_STR-CHNG_TIME sy-vline 
WA_KWPWPHIO_STR-STOR_CAT sy-vline 
WA_KWPWPHIO_STR-DOC_FORMAT sy-vline 
WA_KWPWPHIO_STR-DOC_PROT sy-vline 
WA_KWPWPHIO_STR-PROP01 sy-vline 
WA_KWPWPHIO_STR-PROP02 sy-vline 
WA_KWPWPHIO_STR-PROP03 sy-vline 
WA_KWPWPHIO_STR-PROP04 sy-vline 
WA_KWPWPHIO_STR-PROP05 sy-vline 
WA_KWPWPHIO_STR-PROP06 sy-vline 
WA_KWPWPHIO_STR-PROP07 sy-vline 
WA_KWPWPHIO_STR-PROP08 sy-vline 
WA_KWPWPHIO_STR-PROP09 sy-vline 
WA_KWPWPHIO_STR-PROP10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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