ABAP Select data from SAP table TOES_HREQ_ASSIGN_CL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TOES_HREQ_ASSIGN_CL
*  INTO TABLE @DATA(IT_TOES_HREQ_ASSIGN_CL2).
*--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_TOES_HREQ_ASSIGN_CL INDEX 1 INTO DATA(WA_TOES_HREQ_ASSIGN_CL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TOES_HREQ_ASSIGN_CL>-OS_OID = 1.
<TOES_HREQ_ASSIGN_CL>-HEDGE_REQUEST_ID = 1.
<TOES_HREQ_ASSIGN_CL>-ATTRIBUTES = 1.
<TOES_HREQ_ASSIGN_CL>-DESCRIPTION = 1.
<TOES_HREQ_ASSIGN_CL>-REQUEST_NOTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TOES_HREQ_ASSIGN_CL-HREQ_GROUP_ID, sy-vline,
  WA_TOES_HREQ_ASSIGN_CL-RISK_ITEM_HASH_KEY, sy-vline,
  WA_TOES_HREQ_ASSIGN_CL-REQUEST_CAT, sy-vline,
  WA_TOES_HREQ_ASSIGN_CL-HEDGING_AREA, sy-vline,
  WA_TOES_HREQ_ASSIGN_CL-SNAPSHOT_ID, sy-vline,
  WA_TOES_HREQ_ASSIGN_CL-HEDGING_CLASSIFICATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TOES_HREQ_ASSIGN_CL 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_TOES_HREQ_ASSIGN_CL 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_TOES_HREQ_ASSIGN_CL INTO WA_TOES_HREQ_ASSIGN_CL.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TOES_HREQ_ASSIGN_CL-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TOES_HREQ_ASSIGN_CL-SEGMENT.
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_TOES_HREQ_ASSIGN_CL_STR, 
OS_OID TYPE STRING,
HEDGE_REQUEST_ID TYPE STRING,
ATTRIBUTES TYPE STRING,
DESCRIPTION TYPE STRING,
REQUEST_NOTE TYPE STRING,
HREQ_GROUP_ID TYPE STRING,
RISK_ITEM_HASH_KEY TYPE STRING,
REQUEST_CAT TYPE STRING,
HEDGING_AREA TYPE STRING,
SNAPSHOT_ID TYPE STRING,
HEDGING_CLASSIFICATION TYPE STRING,
PERIOD_CLASS TYPE STRING,
PERIOD_START_FROM TYPE STRING,
PERIOD_START_TO TYPE STRING,
HREQ_VOLUME TYPE STRING,
HREQ_CURRENCY TYPE STRING,
RELEASE_STATUS TYPE STRING,
HREQ_BASE TYPE STRING,
HREQ_DATE TYPE STRING,
INSTRUMENT_CATEGORY TYPE STRING,
SWAP_FROM_VALUE_DATE TYPE STRING,
COUNTERPARTY TYPE STRING,
PORTFOLIO_REQ TYPE STRING,
DECLINED_AMT TYPE STRING,
EXP_FIX_DATE TYPE STRING,
VALUE_DATE TYPE STRING,
COMPANY_CODE TYPE STRING,
RISKFREE_CURRENCY TYPE STRING,
CURRENCY TYPE STRING,
HEDGING_CLASS TYPE STRING,
PORTFOLIO TYPE STRING,
PROFIT_CENTER TYPE STRING,
COST_CENTER TYPE STRING,
WBS_ELEMENT TYPE STRING,
ON_BEHALF_OF_COMPANY TYPE STRING,
COUNTRY TYPE STRING,
SEGMENT TYPE STRING,
BUSINESS_AREA TYPE STRING,
OBJECT_CAT_OR TYPE STRING,
OBJECT_REFERENCE_OR TYPE STRING,
NODE_CAT_OR TYPE STRING,
NODE_REFERENCE_OR TYPE STRING,
SYDATA TYPE STRING,
CREATE_USER TYPE STRING,
CREATE_TIME TYPE STRING,
LAST_CHANGE_USER TYPE STRING,
LAST_CHANGE_TIME TYPE STRING,
VERSION TYPE STRING,
SUBMIT_VERSION TYPE STRING,
RELEASE_VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TOES_HREQ_ASSIGN_CL_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_TOES_HREQ_ASSIGN_CL_STR-OS_OID sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HEDGE_REQUEST_ID sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-ATTRIBUTES sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-DESCRIPTION sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-REQUEST_NOTE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HREQ_GROUP_ID sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-RISK_ITEM_HASH_KEY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-REQUEST_CAT sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HEDGING_AREA sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-SNAPSHOT_ID sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HEDGING_CLASSIFICATION sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-PERIOD_CLASS sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-PERIOD_START_FROM sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-PERIOD_START_TO sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HREQ_VOLUME sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HREQ_CURRENCY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-RELEASE_STATUS sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HREQ_BASE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HREQ_DATE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-INSTRUMENT_CATEGORY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-SWAP_FROM_VALUE_DATE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-COUNTERPARTY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-PORTFOLIO_REQ sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-DECLINED_AMT sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-EXP_FIX_DATE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-VALUE_DATE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-COMPANY_CODE sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-RISKFREE_CURRENCY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-CURRENCY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-HEDGING_CLASS sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-PORTFOLIO sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-PROFIT_CENTER sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-COST_CENTER sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-WBS_ELEMENT sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-ON_BEHALF_OF_COMPANY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-COUNTRY sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-SEGMENT sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-BUSINESS_AREA sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-OBJECT_CAT_OR sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-OBJECT_REFERENCE_OR sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-NODE_CAT_OR sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-NODE_REFERENCE_OR sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-SYDATA sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-CREATE_USER sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-CREATE_TIME sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-LAST_CHANGE_USER sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-LAST_CHANGE_TIME sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-VERSION sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-SUBMIT_VERSION sy-vline 
WA_TOES_HREQ_ASSIGN_CL_STR-RELEASE_VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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