ABAP Select data from SAP table VTV_SIGESH into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VTV_SIGESH 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 VTV_SIGESH. 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 VTV_SIGESH 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_VTV_SIGESH TYPE STANDARD TABLE OF VTV_SIGESH,
      WA_VTV_SIGESH TYPE VTV_SIGESH,
      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: <VTV_SIGESH> TYPE VTV_SIGESH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTV_SIGESH
*  INTO TABLE @DATA(IT_VTV_SIGESH2).
*--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_VTV_SIGESH INDEX 1 INTO DATA(WA_VTV_SIGESH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTV_SIGESH>-MANDT = 1.
<VTV_SIGESH>-RFHA = 1.
<VTV_SIGESH>-RANTYP = 1.
<VTV_SIGESH>-SANLF = 1.
<VTV_SIGESH>-SFGTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTV_SIGESH-SGSART, sy-vline,
  WA_VTV_SIGESH-SFHAART, sy-vline,
  WA_VTV_SIGESH-XFATEXT, sy-vline,
  WA_VTV_SIGESH-XSGSART, sy-vline,
  WA_VTV_SIGESH-RGATT, sy-vline,
  WA_VTV_SIGESH-WGSCHFT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTV_SIGESH 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_VTV_SIGESH 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_VTV_SIGESH INTO WA_VTV_SIGESH.


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

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

*Conversion exit EXCRT, internal->external for field KURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_VTV_SIGESH-KURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTV_SIGESH-KURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field B1OSKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_VTV_SIGESH-B1OSKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTV_SIGESH-B1OSKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field DARKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_VTV_SIGESH-DARKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTV_SIGESH-DARKURS.
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_VTV_SIGESH_STR, 
MANDT TYPE STRING,
RFHA TYPE STRING,
RANTYP TYPE STRING,
SANLF TYPE STRING,
SFGTYP TYPE STRING,
SGSART TYPE STRING,
SFHAART TYPE STRING,
XFATEXT TYPE STRING,
XSGSART TYPE STRING,
RGATT TYPE STRING,
WGSCHFT TYPE STRING,
WGSCHFT1 TYPE STRING,
WGSCHFT2 TYPE STRING,
WLWAERS TYPE STRING,
WFWAERS TYPE STRING,
KURS TYPE STRING,
SSIGN TYPE STRING,
WBLBETR TYPE STRING,
BLBETR TYPE STRING,
XBLBETR TYPE STRING,
XDMATUR TYPE STRING,
DMATUR TYPE STRING,
XPRBETR TYPE STRING,
PRBETR TYPE STRING,
WPRBETR TYPE STRING,
DPRBETR TYPE STRING,
XDPRBETR TYPE STRING,
XMERK TYPE STRING,
B1OSKURS TYPE STRING,
OPTTYP TYPE STRING,
XMARK TYPE STRING,
PKOND TYPE STRING,
SZSREF TYPE STRING,
RSSIGN TYPE STRING,
FCHANGE TYPE STRING,
DELFZ TYPE STRING,
XDELFZ TYPE STRING,
DARKURS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTV_SIGESH_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_VTV_SIGESH_STR-MANDT sy-vline 
WA_VTV_SIGESH_STR-RFHA sy-vline 
WA_VTV_SIGESH_STR-RANTYP sy-vline 
WA_VTV_SIGESH_STR-SANLF sy-vline 
WA_VTV_SIGESH_STR-SFGTYP sy-vline 
WA_VTV_SIGESH_STR-SGSART sy-vline 
WA_VTV_SIGESH_STR-SFHAART sy-vline 
WA_VTV_SIGESH_STR-XFATEXT sy-vline 
WA_VTV_SIGESH_STR-XSGSART sy-vline 
WA_VTV_SIGESH_STR-RGATT sy-vline 
WA_VTV_SIGESH_STR-WGSCHFT sy-vline 
WA_VTV_SIGESH_STR-WGSCHFT1 sy-vline 
WA_VTV_SIGESH_STR-WGSCHFT2 sy-vline 
WA_VTV_SIGESH_STR-WLWAERS sy-vline 
WA_VTV_SIGESH_STR-WFWAERS sy-vline 
WA_VTV_SIGESH_STR-KURS sy-vline 
WA_VTV_SIGESH_STR-SSIGN sy-vline 
WA_VTV_SIGESH_STR-WBLBETR sy-vline 
WA_VTV_SIGESH_STR-BLBETR sy-vline 
WA_VTV_SIGESH_STR-XBLBETR sy-vline 
WA_VTV_SIGESH_STR-XDMATUR sy-vline 
WA_VTV_SIGESH_STR-DMATUR sy-vline 
WA_VTV_SIGESH_STR-XPRBETR sy-vline 
WA_VTV_SIGESH_STR-PRBETR sy-vline 
WA_VTV_SIGESH_STR-WPRBETR sy-vline 
WA_VTV_SIGESH_STR-DPRBETR sy-vline 
WA_VTV_SIGESH_STR-XDPRBETR sy-vline 
WA_VTV_SIGESH_STR-XMERK sy-vline 
WA_VTV_SIGESH_STR-B1OSKURS sy-vline 
WA_VTV_SIGESH_STR-OPTTYP sy-vline 
WA_VTV_SIGESH_STR-XMARK sy-vline 
WA_VTV_SIGESH_STR-PKOND sy-vline 
WA_VTV_SIGESH_STR-SZSREF sy-vline 
WA_VTV_SIGESH_STR-RSSIGN sy-vline 
WA_VTV_SIGESH_STR-FCHANGE sy-vline 
WA_VTV_SIGESH_STR-DELFZ sy-vline 
WA_VTV_SIGESH_STR-XDELFZ sy-vline 
WA_VTV_SIGESH_STR-DARKURS sy-vline      INTO ld_text SEPARATED BY SPACE.

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