ABAP Select data from SAP table TRLS_BW_MAP_FLOW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TRLS_BW_MAP_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 TRLS_BW_MAP_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 TRLS_BW_MAP_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_TRLS_BW_MAP_FLOW TYPE STANDARD TABLE OF TRLS_BW_MAP_FLOW,
      WA_TRLS_BW_MAP_FLOW TYPE TRLS_BW_MAP_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: <TRLS_BW_MAP_FLOW> TYPE TRLS_BW_MAP_FLOW.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRLS_BW_MAP_FLOW
*  INTO TABLE @DATA(IT_TRLS_BW_MAP_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_TRLS_BW_MAP_FLOW INDEX 1 INTO DATA(WA_TRLS_BW_MAP_FLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRLS_BW_MAP_FLOW>-DBESTAND = 1.
<TRLS_BW_MAP_FLOW>-FLOW_TYPE = 1.
<TRLS_BW_MAP_FLOW>-BUSTRANSCAT = 1.
<TRLS_BW_MAP_FLOW>-SOURCETARGET_FLG = 1.
<TRLS_BW_MAP_FLOW>-BUSTRANSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRLS_BW_MAP_FLOW-TRLFLOWNUMBER, sy-vline,
  WA_TRLS_BW_MAP_FLOW-TRL_BOOKINGSTATE, sy-vline,
  WA_TRLS_BW_MAP_FLOW-D_UNITS, sy-vline,
  WA_TRLS_BW_MAP_FLOW-D_NOMINAL_AMT_PC, sy-vline,
  WA_TRLS_BW_MAP_FLOW-D_NOMINAL_ORG_AMT_PC, sy-vline,
  WA_TRLS_BW_MAP_FLOW-D_PURCH_PC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRLS_BW_MAP_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_TRLS_BW_MAP_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_TRLS_BW_MAP_FLOW INTO WA_TRLS_BW_MAP_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 TRLBS, internal->external for field TRL_BOOKINGSTATE
CALL FUNCTION 'CONVERSION_EXIT_TRLBS_OUTPUT'
  EXPORTING
    input =                      WA_TRLS_BW_MAP_FLOW-TRL_BOOKINGSTATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLS_BW_MAP_FLOW-TRL_BOOKINGSTATE.
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_TRLS_BW_MAP_FLOW_STR, 
DBESTAND TYPE STRING,
FLOW_TYPE TYPE STRING,
BUSTRANSCAT TYPE STRING,
SOURCETARGET_FLG TYPE STRING,
BUSTRANSID TYPE STRING,
TRLFLOWNUMBER TYPE STRING,
TRL_BOOKINGSTATE TYPE STRING,
D_UNITS TYPE STRING,
D_NOMINAL_AMT_PC TYPE STRING,
D_NOMINAL_ORG_AMT_PC TYPE STRING,
D_PURCH_PC TYPE STRING,
D_PURCH_LC TYPE STRING,
D_PURCH_VC TYPE STRING,
D_AQU_VAL_PC TYPE STRING,
D_AQU_VAL_LC TYPE STRING,
D_AQU_VAL_VC TYPE STRING,
D_BOOK_VAL_PC TYPE STRING,
D_BOOK_VAL_LC TYPE STRING,
D_BOOK_VAL_VC TYPE STRING,
D_CHARGE_PC TYPE STRING,
D_CHARGE_LC TYPE STRING,
D_CHARGE_VC TYPE STRING,
D_BOOK_VAL_EX_PC TYPE STRING,
D_BOOK_VAL_EX_LC TYPE STRING,
D_BOOK_VAL_EX_VC TYPE STRING,
D_VAL_TI_PC TYPE STRING,
D_VAL_TI_LC TYPE STRING,
D_VAL_TI_VC TYPE STRING,
D_VAL_FX_LC TYPE STRING,
D_VAL_FX_VC TYPE STRING,
D_VAL_CH_TI_PC TYPE STRING,
D_VAL_CH_TI_LC TYPE STRING,
D_VAL_CH_TI_VC TYPE STRING,
D_VAL_CH_FX_LC TYPE STRING,
D_VAL_CH_FX_VC TYPE STRING,
D_AMORT_PC TYPE STRING,
D_AMORT_LC TYPE STRING,
D_AMORT_VC TYPE STRING,
D_IMPMNT_PC TYPE STRING,
D_IMPMNT_LC TYPE STRING,
D_IMPMNT_VC TYPE STRING,
D_REPAYMENT_PC TYPE STRING,
D_REPAYMENT_LC TYPE STRING,
D_REPAYMENT_VC TYPE STRING,
D_AMAQU_VAL_PC TYPE STRING,
D_AMAQU_VAL_LC TYPE STRING,
D_AMAQU_VAL_VC TYPE STRING,
D_DISAGIO_PC TYPE STRING,
D_DISAGIO_LC TYPE STRING,
D_DISAGIO_VC TYPE STRING,
D_VAL_TI_NPL_PC TYPE STRING,
D_VAL_TI_NPL_LC TYPE STRING,
D_VAL_TI_NPL_VC TYPE STRING,
D_VAL_FX_NPL_LC TYPE STRING,
D_VAL_FX_NPL_VC TYPE STRING,
D_VAL_CH_TI_N_PC TYPE STRING,
D_VAL_CH_TI_N_LC TYPE STRING,
D_VAL_CH_TI_N_VC TYPE STRING,
D_VAL_CH_FX_N_LC TYPE STRING,
D_VAL_CH_FX_N_VC TYPE STRING,
D_VARMAR_PC TYPE STRING,
D_VARMAR_LC TYPE STRING,
D_VARMAR_VC TYPE STRING,
D_SPOTVALP_LC TYPE STRING,
D_SPOTVALP_VC TYPE STRING,
D_SPOTVALS_LC TYPE STRING,
D_SPOTVALS_VC TYPE STRING,
D_SWAPACC_LC TYPE STRING,
D_SWAPACC_VC TYPE STRING,
D_SWAPVAL_LC TYPE STRING,
D_SWAPVAL_VC TYPE STRING,
SBWHR TYPE STRING,
SVWHR TYPE STRING,
SHWHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRLS_BW_MAP_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_TRLS_BW_MAP_FLOW_STR-DBESTAND sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-FLOW_TYPE sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-BUSTRANSCAT sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-SOURCETARGET_FLG sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-BUSTRANSID sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-TRLFLOWNUMBER sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-TRL_BOOKINGSTATE sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_UNITS sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_NOMINAL_AMT_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_NOMINAL_ORG_AMT_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_PURCH_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_PURCH_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_PURCH_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AQU_VAL_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AQU_VAL_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AQU_VAL_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_BOOK_VAL_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_BOOK_VAL_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_BOOK_VAL_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_CHARGE_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_CHARGE_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_CHARGE_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_BOOK_VAL_EX_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_BOOK_VAL_EX_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_BOOK_VAL_EX_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_TI_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_TI_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_TI_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_FX_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_FX_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_TI_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_TI_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_TI_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_FX_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_FX_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AMORT_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AMORT_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AMORT_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_IMPMNT_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_IMPMNT_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_IMPMNT_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_REPAYMENT_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_REPAYMENT_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_REPAYMENT_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AMAQU_VAL_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AMAQU_VAL_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_AMAQU_VAL_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_DISAGIO_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_DISAGIO_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_DISAGIO_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_TI_NPL_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_TI_NPL_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_TI_NPL_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_FX_NPL_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_FX_NPL_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_TI_N_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_TI_N_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_TI_N_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_FX_N_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VAL_CH_FX_N_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VARMAR_PC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VARMAR_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_VARMAR_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SPOTVALP_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SPOTVALP_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SPOTVALS_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SPOTVALS_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SWAPACC_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SWAPACC_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SWAPVAL_LC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-D_SWAPVAL_VC sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-SBWHR sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-SVWHR sy-vline 
WA_TRLS_BW_MAP_FLOW_STR-SHWHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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