ABAP Select data from SAP table TRILS_CLASSIFICATION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRILS_CLASSIFICATION
*  INTO TABLE @DATA(IT_TRILS_CLASSIFICATION2).
*--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_TRILS_CLASSIFICATION INDEX 1 INTO DATA(WA_TRILS_CLASSIFICATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRILS_CLASSIFICATION>-BUKRS = 1.
<TRILS_CLASSIFICATION>-RFHA = 1.
<TRILS_CLASSIFICATION>-HR = 1.
<TRILS_CLASSIFICATION>-MANDT = 1.
<TRILS_CLASSIFICATION>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRILS_CLASSIFICATION-RFHA, sy-vline,
  WA_TRILS_CLASSIFICATION-HEDGE_ID, sy-vline,
  WA_TRILS_CLASSIFICATION-HR_VERSION, sy-vline,
  WA_TRILS_CLASSIFICATION-HR_COMP_KEY, sy-vline,
  WA_TRILS_CLASSIFICATION-VALUATION_AREA, sy-vline,
  WA_TRILS_CLASSIFICATION-HR_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRILS_CLASSIFICATION 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_TRILS_CLASSIFICATION 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_TRILS_CLASSIFICATION INTO WA_TRILS_CLASSIFICATION.


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

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

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

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

*Conversion exit CUNIT, internal->external for field UNIT_OF_MEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TRILS_CLASSIFICATION-UNIT_OF_MEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRILS_CLASSIFICATION-UNIT_OF_MEASURE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field HEDGE_DES_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TRILS_CLASSIFICATION-HEDGE_DES_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRILS_CLASSIFICATION-HEDGE_DES_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HD_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRILS_CLASSIFICATION-HD_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRILS_CLASSIFICATION-HD_NUMBER.
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_TRILS_CLASSIFICATION_STR, 
BUKRS TYPE STRING,
RFHA TYPE STRING,
HR TYPE STRING,
MANDT TYPE STRING,
BUKRS TYPE STRING,
RFHA TYPE STRING,
HEDGE_ID TYPE STRING,
HR_VERSION TYPE STRING,
HR_COMP_KEY TYPE STRING,
VALUATION_AREA TYPE STRING,
HR_DATE TYPE STRING,
HR_CR_DATE TYPE STRING,
HR_TIME TYPE STRING,
CRUSER TYPE STRING,
UPUSER TYPE STRING,
VOL_DERIVATIVE TYPE STRING,
CURR_DERIVATIVE TYPE STRING,
VOL_HEDGE_ITEM TYPE STRING,
CURR_HEDGE_ITEM TYPE STRING,
MEAS_EXISTS TYPE STRING,
NOT_DELETABLE TYPE STRING,
STATUS TYPE STRING,
STATUS_CHANGE TYPE STRING,
SANLF TYPE STRING,
SFGTYP TYPE STRING,
SGSART TYPE STRING,
SFHAART TYPE STRING,
RANTYP TYPE STRING,
HR_RATE_CAT TYPE STRING,
HR_INT_FIX TYPE STRING,
HR_INT_VAR TYPE STRING,
HR_FX_RATE TYPE STRING,
HR_STARTVAL TYPE STRING,
BENCHMARK TYPE STRING,
FIX_BENCHMARK TYPE STRING,
H_RFHA TYPE STRING,
HR_SPREAD TYPE STRING,
PMAX TYPE STRING,
PMIN TYPE STRING,
REFTYP TYPE STRING,
REFNR TYPE STRING,
HR_BEGIN_DATE TYPE STRING,
KKASSA TYPE STRING,
DVTRAB TYPE STRING,
DESIG_QUANTITY TYPE STRING,
UNIT_OF_MEASURE TYPE STRING,
COMMODITY_ID TYPE STRING,
COMMODITY_PRICE TYPE STRING,
HR_REFNR TYPE STRING,
EXP_FORW_PRICE TYPE STRING,
COMM_ID_DERIV TYPE STRING,
HEDGE_DES_QTY TYPE STRING,
HEDGE_DES_UOM TYPE STRING,
HD_NUMBER TYPE STRING,
HD_VERSION TYPE STRING,
FP_CALC_METH TYPE STRING,
KEY_DATE TYPE STRING,
TO_BE_CLASSIFIED TYPE STRING,
TO_OCI TYPE STRING,
TO_PL TYPE STRING,
TO_BE_CLASSIFIED_POS_CURR TYPE STRING,
TO_OCI_POS_CURR TYPE STRING,
TO_PL_POS_CURR TYPE STRING,
TO_OCI_2 TYPE STRING,
TO_OCI_POS_CURR_2 TYPE STRING,
TO_PL_2 TYPE STRING,
TO_PL_POS_CURR_2 TYPE STRING,
TO_PL_HDG_VC TYPE STRING,
TO_PL_HDG_PC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRILS_CLASSIFICATION_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_TRILS_CLASSIFICATION_STR-BUKRS sy-vline 
WA_TRILS_CLASSIFICATION_STR-RFHA sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR sy-vline 
WA_TRILS_CLASSIFICATION_STR-MANDT sy-vline 
WA_TRILS_CLASSIFICATION_STR-BUKRS sy-vline 
WA_TRILS_CLASSIFICATION_STR-RFHA sy-vline 
WA_TRILS_CLASSIFICATION_STR-HEDGE_ID sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_VERSION sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_COMP_KEY sy-vline 
WA_TRILS_CLASSIFICATION_STR-VALUATION_AREA sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_DATE sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_CR_DATE sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_TIME sy-vline 
WA_TRILS_CLASSIFICATION_STR-CRUSER sy-vline 
WA_TRILS_CLASSIFICATION_STR-UPUSER sy-vline 
WA_TRILS_CLASSIFICATION_STR-VOL_DERIVATIVE sy-vline 
WA_TRILS_CLASSIFICATION_STR-CURR_DERIVATIVE sy-vline 
WA_TRILS_CLASSIFICATION_STR-VOL_HEDGE_ITEM sy-vline 
WA_TRILS_CLASSIFICATION_STR-CURR_HEDGE_ITEM sy-vline 
WA_TRILS_CLASSIFICATION_STR-MEAS_EXISTS sy-vline 
WA_TRILS_CLASSIFICATION_STR-NOT_DELETABLE sy-vline 
WA_TRILS_CLASSIFICATION_STR-STATUS sy-vline 
WA_TRILS_CLASSIFICATION_STR-STATUS_CHANGE sy-vline 
WA_TRILS_CLASSIFICATION_STR-SANLF sy-vline 
WA_TRILS_CLASSIFICATION_STR-SFGTYP sy-vline 
WA_TRILS_CLASSIFICATION_STR-SGSART sy-vline 
WA_TRILS_CLASSIFICATION_STR-SFHAART sy-vline 
WA_TRILS_CLASSIFICATION_STR-RANTYP sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_RATE_CAT sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_INT_FIX sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_INT_VAR sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_FX_RATE sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_STARTVAL sy-vline 
WA_TRILS_CLASSIFICATION_STR-BENCHMARK sy-vline 
WA_TRILS_CLASSIFICATION_STR-FIX_BENCHMARK sy-vline 
WA_TRILS_CLASSIFICATION_STR-H_RFHA sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_SPREAD sy-vline 
WA_TRILS_CLASSIFICATION_STR-PMAX sy-vline 
WA_TRILS_CLASSIFICATION_STR-PMIN sy-vline 
WA_TRILS_CLASSIFICATION_STR-REFTYP sy-vline 
WA_TRILS_CLASSIFICATION_STR-REFNR sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_BEGIN_DATE sy-vline 
WA_TRILS_CLASSIFICATION_STR-KKASSA sy-vline 
WA_TRILS_CLASSIFICATION_STR-DVTRAB sy-vline 
WA_TRILS_CLASSIFICATION_STR-DESIG_QUANTITY sy-vline 
WA_TRILS_CLASSIFICATION_STR-UNIT_OF_MEASURE sy-vline 
WA_TRILS_CLASSIFICATION_STR-COMMODITY_ID sy-vline 
WA_TRILS_CLASSIFICATION_STR-COMMODITY_PRICE sy-vline 
WA_TRILS_CLASSIFICATION_STR-HR_REFNR sy-vline 
WA_TRILS_CLASSIFICATION_STR-EXP_FORW_PRICE sy-vline 
WA_TRILS_CLASSIFICATION_STR-COMM_ID_DERIV sy-vline 
WA_TRILS_CLASSIFICATION_STR-HEDGE_DES_QTY sy-vline 
WA_TRILS_CLASSIFICATION_STR-HEDGE_DES_UOM sy-vline 
WA_TRILS_CLASSIFICATION_STR-HD_NUMBER sy-vline 
WA_TRILS_CLASSIFICATION_STR-HD_VERSION sy-vline 
WA_TRILS_CLASSIFICATION_STR-FP_CALC_METH sy-vline 
WA_TRILS_CLASSIFICATION_STR-KEY_DATE sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_BE_CLASSIFIED sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_OCI sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_PL sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_BE_CLASSIFIED_POS_CURR sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_OCI_POS_CURR sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_PL_POS_CURR sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_OCI_2 sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_OCI_POS_CURR_2 sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_PL_2 sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_PL_POS_CURR_2 sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_PL_HDG_VC sy-vline 
WA_TRILS_CLASSIFICATION_STR-TO_PL_HDG_PC sy-vline      INTO ld_text SEPARATED BY SPACE.

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