ABAP Select data from SAP table TLVS_PROTOCOL_FLOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TLVS_PROTOCOL_FLOW
*  INTO TABLE @DATA(IT_TLVS_PROTOCOL_FLOW2).
*--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_TLVS_PROTOCOL_FLOW INDEX 1 INTO DATA(WA_TLVS_PROTOCOL_FLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TLVS_PROTOCOL_FLOW>-POS_ID = 1.
<TLVS_PROTOCOL_FLOW>-MANDT = 1.
<TLVS_PROTOCOL_FLOW>-VALUATION_TRANS = 1.
<TLVS_PROTOCOL_FLOW>-FLOW_NUMBER = 1.
<TLVS_PROTOCOL_FLOW>-STEP_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TLVS_PROTOCOL_FLOW-DIS_FLOWTYPE, sy-vline,
  WA_TLVS_PROTOCOL_FLOW-VAL_FLOW_CAT, sy-vline,
  WA_TLVS_PROTOCOL_FLOW-VAL_FLOW_RESET, sy-vline,
  WA_TLVS_PROTOCOL_FLOW-POSITION_CURR, sy-vline,
  WA_TLVS_PROTOCOL_FLOW-POSITION_AMT, sy-vline,
  WA_TLVS_PROTOCOL_FLOW-VALUATION_CURR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TLVS_PROTOCOL_FLOW 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_TLVS_PROTOCOL_FLOW 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_TLVS_PROTOCOL_FLOW INTO WA_TLVS_PROTOCOL_FLOW.


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

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

*Conversion exit ALPHA, internal->external for field DEAL_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TLVS_PROTOCOL_FLOW-DEAL_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TLVS_PROTOCOL_FLOW-DEAL_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_TLVS_PROTOCOL_FLOW_STR, 
POS_ID TYPE STRING,
MANDT TYPE STRING,
VALUATION_TRANS TYPE STRING,
FLOW_NUMBER TYPE STRING,
STEP_NUMBER TYPE STRING,
DIS_FLOWTYPE TYPE STRING,
VAL_FLOW_CAT TYPE STRING,
VAL_FLOW_RESET TYPE STRING,
POSITION_CURR TYPE STRING,
POSITION_AMT TYPE STRING,
VALUATION_CURR TYPE STRING,
VALUATION_AMT TYPE STRING,
POSAMT_IDX_CLEAN TYPE STRING,
EFF_INT_RATE_U TYPE STRING,
SCHED_EFF_RATE TYPE STRING,
EFF_INT_RATE_N TYPE STRING,
SCHED_FIX TYPE STRING,
AMOUNT_CAT TYPE STRING,
FLG_CNG_BY_BADI TYPE STRING,
SUBPOSITION_OID TYPE STRING,
HITEM_OID TYPE STRING,
HINST_OID TYPE STRING,
DIS_FLOWTYPE_TEXT TYPE STRING,
VALUATION_AREA TYPE STRING,
VALUATION_AREA_T TYPE STRING,
ACCOUNTING_CODE TYPE STRING,
ACCOUNTING_CODE_T TYPE STRING,
COMPANY_CODE TYPE STRING,
VALUATION_CLASS TYPE STRING,
VAL_CLASS_NAME TYPE STRING,
PRODUCT_TYPE TYPE STRING,
PRODUCT_TYPE_NAME TYPE STRING,
SECURITY_ID TYPE STRING,
SECURITY_ID_NAME TYPE STRING,
SECURITY_ACCOUNT TYPE STRING,
SECURITY_ACCOUNT_NAME TYPE STRING,
ACCOUNT_GROUP TYPE STRING,
ACCOUNT_GROUP_NAME TYPE STRING,
PORTFOLIO TYPE STRING,
PORTFOLIO_NAME TYPE STRING,
LOANS_CONTRACT TYPE STRING,
DEAL_NUMBER TYPE STRING,
LOT_ID TYPE STRING,
STEP_CAT TYPE STRING,
STEP_NAME TYPE STRING,
PM_PROC TYPE STRING,
PM_PROC_T TYPE STRING,
COLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TLVS_PROTOCOL_FLOW_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_TLVS_PROTOCOL_FLOW_STR-POS_ID sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-MANDT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VALUATION_TRANS sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-FLOW_NUMBER sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-STEP_NUMBER sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-DIS_FLOWTYPE sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VAL_FLOW_CAT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VAL_FLOW_RESET sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-POSITION_CURR sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-POSITION_AMT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VALUATION_CURR sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VALUATION_AMT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-POSAMT_IDX_CLEAN sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-EFF_INT_RATE_U sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SCHED_EFF_RATE sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-EFF_INT_RATE_N sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SCHED_FIX sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-AMOUNT_CAT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-FLG_CNG_BY_BADI sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SUBPOSITION_OID sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-HITEM_OID sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-HINST_OID sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-DIS_FLOWTYPE_TEXT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VALUATION_AREA sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VALUATION_AREA_T sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-ACCOUNTING_CODE sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-ACCOUNTING_CODE_T sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-COMPANY_CODE sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VALUATION_CLASS sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-VAL_CLASS_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-PRODUCT_TYPE sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-PRODUCT_TYPE_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SECURITY_ID sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SECURITY_ID_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SECURITY_ACCOUNT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-SECURITY_ACCOUNT_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-ACCOUNT_GROUP sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-ACCOUNT_GROUP_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-PORTFOLIO sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-PORTFOLIO_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-LOANS_CONTRACT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-DEAL_NUMBER sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-LOT_ID sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-STEP_CAT sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-STEP_NAME sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-PM_PROC sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-PM_PROC_T sy-vline 
WA_TLVS_PROTOCOL_FLOW_STR-COLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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