ABAP Select data from SAP table TRDS_FLOW_PAYMENT_INFO_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRDS_FLOW_PAYMENT_INFO_DATA
*  INTO TABLE @DATA(IT_TRDS_FLOW_PAYMENT_INFO_DATA2).
*--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_TRDS_FLOW_PAYMENT_INFO_DATA INDEX 1 INTO DATA(WA_TRDS_FLOW_PAYMENT_INFO_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRDS_FLOW_PAYMENT_INFO_DATA>-SIGN = 1.
<TRDS_FLOW_PAYMENT_INFO_DATA>-HOUSE_BANK = 1.
<TRDS_FLOW_PAYMENT_INFO_DATA>-HOUSE_BANK_ACC = 1.
<TRDS_FLOW_PAYMENT_INFO_DATA>-PAYMENT_DATE = 1.
<TRDS_FLOW_PAYMENT_INFO_DATA>-DUE_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRDS_FLOW_PAYMENT_INFO_DATA-RPBANK, sy-vline,
  WA_TRDS_FLOW_PAYMENT_INFO_DATA-RPZAHL, sy-vline,
  WA_TRDS_FLOW_PAYMENT_INFO_DATA-SZART, sy-vline,
  WA_TRDS_FLOW_PAYMENT_INFO_DATA-ZLSCH, sy-vline,
  WA_TRDS_FLOW_PAYMENT_INFO_DATA-UZAWE, sy-vline,
  WA_TRDS_FLOW_PAYMENT_INFO_DATA-SPAYRQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRDS_FLOW_PAYMENT_INFO_DATA 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_TRDS_FLOW_PAYMENT_INFO_DATA 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_TRDS_FLOW_PAYMENT_INFO_DATA INTO WA_TRDS_FLOW_PAYMENT_INFO_DATA.


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

*Conversion exit ALPHA, internal->external for field RPCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRDS_FLOW_PAYMENT_INFO_DATA-RPCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRDS_FLOW_PAYMENT_INFO_DATA-RPCODE.
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_TRDS_FLOW_PAYMENT_INFO_DATA_STR, 
SIGN TYPE STRING,
HOUSE_BANK TYPE STRING,
HOUSE_BANK_ACC TYPE STRING,
PAYMENT_DATE TYPE STRING,
DUE_DATE TYPE STRING,
RPBANK TYPE STRING,
RPZAHL TYPE STRING,
SZART TYPE STRING,
ZLSCH TYPE STRING,
UZAWE TYPE STRING,
SPAYRQ TYPE STRING,
SPRSNG TYPE STRING,
SPRGRD TYPE STRING,
SCSPAY TYPE STRING,
ZWELS TYPE STRING,
PAYGR TYPE STRING,
LANDL TYPE STRING,
LZBKZ TYPE STRING,
RPCODE TYPE STRING,
RP_TEXT TYPE STRING,
MNDID TYPE STRING,
FX_FIXING_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRDS_FLOW_PAYMENT_INFO_DATA_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_TRDS_FLOW_PAYMENT_INFO_DATA_STR-SIGN sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-HOUSE_BANK sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-HOUSE_BANK_ACC sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-PAYMENT_DATE sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-DUE_DATE sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-RPBANK sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-RPZAHL sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-SZART sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-ZLSCH sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-UZAWE sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-SPAYRQ sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-SPRSNG sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-SPRGRD sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-SCSPAY sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-ZWELS sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-PAYGR sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-LANDL sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-LZBKZ sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-RPCODE sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-RP_TEXT sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-MNDID sy-vline 
WA_TRDS_FLOW_PAYMENT_INFO_DATA_STR-FX_FIXING_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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