ABAP Select data from SAP table TPIS_CHANGEABLE_REQUEST_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPIS_CHANGEABLE_REQUEST_ATTR
*  INTO TABLE @DATA(IT_TPIS_CHANGEABLE_REQUEST_ATTR2).
*--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_TPIS_CHANGEABLE_REQUEST_ATTR INDEX 1 INTO DATA(WA_TPIS_CHANGEABLE_REQUEST_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPIS_CHANGEABLE_REQUEST_ATTR>-INSTRUMENT_CATEGORY = 1.
<TPIS_CHANGEABLE_REQUEST_ATTR>-COMPANY_CODE = 1.
<TPIS_CHANGEABLE_REQUEST_ATTR>-PORTFOLIO = 1.
<TPIS_CHANGEABLE_REQUEST_ATTR>-PROFIT_CENTER = 1.
<TPIS_CHANGEABLE_REQUEST_ATTR>-COST_CENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPIS_CHANGEABLE_REQUEST_ATTR-WBS_ELEMENT, sy-vline,
  WA_TPIS_CHANGEABLE_REQUEST_ATTR-HEDGING_CLASS, sy-vline,
  WA_TPIS_CHANGEABLE_REQUEST_ATTR-ON_BEHALF_OF_COMPANY, sy-vline,
  WA_TPIS_CHANGEABLE_REQUEST_ATTR-COUNTRY, sy-vline,
  WA_TPIS_CHANGEABLE_REQUEST_ATTR-SEGMENT, sy-vline,
  WA_TPIS_CHANGEABLE_REQUEST_ATTR-BUSINESS_AREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPIS_CHANGEABLE_REQUEST_ATTR 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_TPIS_CHANGEABLE_REQUEST_ATTR 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_TPIS_CHANGEABLE_REQUEST_ATTR INTO WA_TPIS_CHANGEABLE_REQUEST_ATTR.


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

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

*Conversion exit ABPSP, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_TPIS_CHANGEABLE_REQUEST_ATTR-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TPIS_CHANGEABLE_REQUEST_ATTR-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field HEDGE_REQUEST_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TPIS_CHANGEABLE_REQUEST_ATTR-HEDGE_REQUEST_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TPIS_CHANGEABLE_REQUEST_ATTR-HEDGE_REQUEST_ID.
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_TPIS_CHANGEABLE_REQUEST_ATTR_STR, 
INSTRUMENT_CATEGORY TYPE STRING,
COMPANY_CODE TYPE STRING,
PORTFOLIO TYPE STRING,
PROFIT_CENTER TYPE STRING,
COST_CENTER TYPE STRING,
WBS_ELEMENT TYPE STRING,
HEDGING_CLASS TYPE STRING,
ON_BEHALF_OF_COMPANY TYPE STRING,
COUNTRY TYPE STRING,
SEGMENT TYPE STRING,
BUSINESS_AREA TYPE STRING,
HEDGING_AREA TYPE STRING,
EXTERNAL_REFERENECE TYPE STRING,
ASSIGNMENT TYPE STRING,
INTERNAL_REFERENCE TYPE STRING,
CHARACTERISTICS TYPE STRING,
HEDGE_REQUEST_ID TYPE STRING,
NOTE TYPE STRING,
FLAG_DOCUMENT TYPE STRING,
REQUEST_DESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPIS_CHANGEABLE_REQUEST_ATTR_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_TPIS_CHANGEABLE_REQUEST_ATTR_STR-INSTRUMENT_CATEGORY sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-COMPANY_CODE sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-PORTFOLIO sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-PROFIT_CENTER sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-COST_CENTER sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-WBS_ELEMENT sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-HEDGING_CLASS sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-ON_BEHALF_OF_COMPANY sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-COUNTRY sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-SEGMENT sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-BUSINESS_AREA sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-HEDGING_AREA sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-EXTERNAL_REFERENECE sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-ASSIGNMENT sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-INTERNAL_REFERENCE sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-CHARACTERISTICS sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-HEDGE_REQUEST_ID sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-NOTE sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-FLAG_DOCUMENT sy-vline 
WA_TPIS_CHANGEABLE_REQUEST_ATTR_STR-REQUEST_DESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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