ABAP Select data from SAP table V_TAPL_IFLOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TAPL_IFLOS
*  INTO TABLE @DATA(IT_V_TAPL_IFLOS2).
*--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_V_TAPL_IFLOS INDEX 1 INTO DATA(WA_V_TAPL_IFLOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TAPL_IFLOS>-MANDT = 1.
<V_TAPL_IFLOS>-PLNTY = 1.
<V_TAPL_IFLOS>-PLNNR = 1.
<V_TAPL_IFLOS>-PLNAL = 1.
<V_TAPL_IFLOS>-ZKRIZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TAPL_IFLOS-ZAEHL, sy-vline,
  WA_V_TAPL_IFLOS-IWERK, sy-vline,
  WA_V_TAPL_IFLOS-DATUV, sy-vline,
  WA_V_TAPL_IFLOS-TECHV, sy-vline,
  WA_V_TAPL_IFLOS-LOEKZ, sy-vline,
  WA_V_TAPL_IFLOS-PARKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TAPL_IFLOS 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_V_TAPL_IFLOS 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_V_TAPL_IFLOS INTO WA_V_TAPL_IFLOS.


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

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

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

*Conversion exit TPLNR, internal->external for field TPLNR_INT
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_V_TAPL_IFLOS-TPLNR_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TAPL_IFLOS-TPLNR_INT.
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_V_TAPL_IFLOS_STR, 
MANDT TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZKRIZ TYPE STRING,
ZAEHL TYPE STRING,
IWERK TYPE STRING,
DATUV TYPE STRING,
TECHV TYPE STRING,
LOEKZ TYPE STRING,
PARKZ TYPE STRING,
AENNR TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
TPLNR TYPE STRING,
ALKEY TYPE STRING,
VERSN TYPE STRING,
ACTVS TYPE STRING,
TPLNR_INT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TAPL_IFLOS_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_V_TAPL_IFLOS_STR-MANDT sy-vline 
WA_V_TAPL_IFLOS_STR-PLNTY sy-vline 
WA_V_TAPL_IFLOS_STR-PLNNR sy-vline 
WA_V_TAPL_IFLOS_STR-PLNAL sy-vline 
WA_V_TAPL_IFLOS_STR-ZKRIZ sy-vline 
WA_V_TAPL_IFLOS_STR-ZAEHL sy-vline 
WA_V_TAPL_IFLOS_STR-IWERK sy-vline 
WA_V_TAPL_IFLOS_STR-DATUV sy-vline 
WA_V_TAPL_IFLOS_STR-TECHV sy-vline 
WA_V_TAPL_IFLOS_STR-LOEKZ sy-vline 
WA_V_TAPL_IFLOS_STR-PARKZ sy-vline 
WA_V_TAPL_IFLOS_STR-AENNR sy-vline 
WA_V_TAPL_IFLOS_STR-ANDAT sy-vline 
WA_V_TAPL_IFLOS_STR-ANNAM sy-vline 
WA_V_TAPL_IFLOS_STR-AEDAT sy-vline 
WA_V_TAPL_IFLOS_STR-AENAM sy-vline 
WA_V_TAPL_IFLOS_STR-TPLNR sy-vline 
WA_V_TAPL_IFLOS_STR-ALKEY sy-vline 
WA_V_TAPL_IFLOS_STR-VERSN sy-vline 
WA_V_TAPL_IFLOS_STR-ACTVS sy-vline 
WA_V_TAPL_IFLOS_STR-TPLNR_INT sy-vline      INTO ld_text SEPARATED BY SPACE.

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