ABAP Select data from SAP table VTVCASHFLOW_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTVCASHFLOW_ALV
*  INTO TABLE @DATA(IT_VTVCASHFLOW_ALV2).
*--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_VTVCASHFLOW_ALV INDEX 1 INTO DATA(WA_VTVCASHFLOW_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTVCASHFLOW_ALV>-XFL = 1.
<VTVCASHFLOW_ALV>-XFL_TEXT = 1.
<VTVCASHFLOW_ALV>-SZENAME = 1.
<VTVCASHFLOW_ALV>-DISPW = 1.
<VTVCASHFLOW_ALV>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTVCASHFLOW_ALV-RPORTB, sy-vline,
  WA_VTVCASHFLOW_ALV-RANTYP, sy-vline,
  WA_VTVCASHFLOW_ALV-SANLF, sy-vline,
  WA_VTVCASHFLOW_ALV-SGSART, sy-vline,
  WA_VTVCASHFLOW_ALV-RFHA, sy-vline,
  WA_VTVCASHFLOW_ALV-RANL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTVCASHFLOW_ALV 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_VTVCASHFLOW_ALV 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_VTVCASHFLOW_ALV INTO WA_VTVCASHFLOW_ALV.


*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_VTVCASHFLOW_ALV-RFHA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVCASHFLOW_ALV-RFHA.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTVCASHFLOW_ALV-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTVCASHFLOW_ALV-PARTNR.
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_VTVCASHFLOW_ALV_STR, 
XFL TYPE STRING,
XFL_TEXT TYPE STRING,
SZENAME TYPE STRING,
DISPW TYPE STRING,
BUKRS TYPE STRING,
RPORTB TYPE STRING,
RANTYP TYPE STRING,
SANLF TYPE STRING,
SGSART TYPE STRING,
RFHA TYPE STRING,
RANL TYPE STRING,
RLDEPO TYPE STRING,
SFGTYP TYPE STRING,
PARTNR TYPE STRING,
REFER TYPE STRING,
ZUOND TYPE STRING,
MERKM TYPE STRING,
WRSHD1 TYPE STRING,
WRSHD2 TYPE STRING,
WRSHD3 TYPE STRING,
WRSHD4 TYPE STRING,
WRSHD5 TYPE STRING,
WRSHD6 TYPE STRING,
WRSHD7 TYPE STRING,
WRSHD8 TYPE STRING,
WRSHD9 TYPE STRING,
WRSHD10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTVCASHFLOW_ALV_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_VTVCASHFLOW_ALV_STR-XFL sy-vline 
WA_VTVCASHFLOW_ALV_STR-XFL_TEXT sy-vline 
WA_VTVCASHFLOW_ALV_STR-SZENAME sy-vline 
WA_VTVCASHFLOW_ALV_STR-DISPW sy-vline 
WA_VTVCASHFLOW_ALV_STR-BUKRS sy-vline 
WA_VTVCASHFLOW_ALV_STR-RPORTB sy-vline 
WA_VTVCASHFLOW_ALV_STR-RANTYP sy-vline 
WA_VTVCASHFLOW_ALV_STR-SANLF sy-vline 
WA_VTVCASHFLOW_ALV_STR-SGSART sy-vline 
WA_VTVCASHFLOW_ALV_STR-RFHA sy-vline 
WA_VTVCASHFLOW_ALV_STR-RANL sy-vline 
WA_VTVCASHFLOW_ALV_STR-RLDEPO sy-vline 
WA_VTVCASHFLOW_ALV_STR-SFGTYP sy-vline 
WA_VTVCASHFLOW_ALV_STR-PARTNR sy-vline 
WA_VTVCASHFLOW_ALV_STR-REFER sy-vline 
WA_VTVCASHFLOW_ALV_STR-ZUOND sy-vline 
WA_VTVCASHFLOW_ALV_STR-MERKM sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD1 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD2 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD3 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD4 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD5 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD6 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD7 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD8 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD9 sy-vline 
WA_VTVCASHFLOW_ALV_STR-WRSHD10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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