ABAP Select data from SAP table TERSVWERKO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TERSVWERKO
*  INTO TABLE @DATA(IT_TERSVWERKO2).
*--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_TERSVWERKO INDEX 1 INTO DATA(WA_TERSVWERKO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TERSVWERKO>-MANDT = 1.
<TERSVWERKO>-RIGHTNUMBER = 1.
<TERSVWERKO>-RIGHTTYPE = 1.
<TERSVWERKO>-ISACTIV = 1.
<TERSVWERKO>-STARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TERSVWERKO-ENDDATE, sy-vline,
  WA_TERSVWERKO-POSTINGSTATE, sy-vline,
  WA_TERSVWERKO-RANLUNDERLYING, sy-vline,
  WA_TERSVWERKO-RANLEX, sy-vline,
  WA_TERSVWERKO-SETTLEMENT, sy-vline,
  WA_TERSVWERKO-EXERCISETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TERSVWERKO 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_TERSVWERKO 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_TERSVWERKO INTO WA_TERSVWERKO.


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

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

*Conversion exit ALPHA, internal->external for field RANLEX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TERSVWERKO-RANLEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TERSVWERKO-RANLEX.
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_TERSVWERKO_STR, 
MANDT TYPE STRING,
RIGHTNUMBER TYPE STRING,
RIGHTTYPE TYPE STRING,
ISACTIV TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
POSTINGSTATE TYPE STRING,
RANLUNDERLYING TYPE STRING,
RANLEX TYPE STRING,
SETTLEMENT TYPE STRING,
EXERCISETYPE TYPE STRING,
PRICE TYPE STRING,
CURRENCY1 TYPE STRING,
SECURITIESINDEX TYPE STRING,
INDEXBASE TYPE STRING,
REFERENCEUNIT TYPE STRING,
CURRENCY2 TYPE STRING,
BASICRATE TYPE STRING,
RATIONUMERATOR TYPE STRING,
RATIODENOMINATOR TYPE STRING,
SHORTTEXT TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
PRICE_INDEX TYPE STRING,
STRIKE_IN_POINTS TYPE STRING,
BASICRATE_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TERSVWERKO_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_TERSVWERKO_STR-MANDT sy-vline 
WA_TERSVWERKO_STR-RIGHTNUMBER sy-vline 
WA_TERSVWERKO_STR-RIGHTTYPE sy-vline 
WA_TERSVWERKO_STR-ISACTIV sy-vline 
WA_TERSVWERKO_STR-STARTDATE sy-vline 
WA_TERSVWERKO_STR-ENDDATE sy-vline 
WA_TERSVWERKO_STR-POSTINGSTATE sy-vline 
WA_TERSVWERKO_STR-RANLUNDERLYING sy-vline 
WA_TERSVWERKO_STR-RANLEX sy-vline 
WA_TERSVWERKO_STR-SETTLEMENT sy-vline 
WA_TERSVWERKO_STR-EXERCISETYPE sy-vline 
WA_TERSVWERKO_STR-PRICE sy-vline 
WA_TERSVWERKO_STR-CURRENCY1 sy-vline 
WA_TERSVWERKO_STR-SECURITIESINDEX sy-vline 
WA_TERSVWERKO_STR-INDEXBASE sy-vline 
WA_TERSVWERKO_STR-REFERENCEUNIT sy-vline 
WA_TERSVWERKO_STR-CURRENCY2 sy-vline 
WA_TERSVWERKO_STR-BASICRATE sy-vline 
WA_TERSVWERKO_STR-RATIONUMERATOR sy-vline 
WA_TERSVWERKO_STR-RATIODENOMINATOR sy-vline 
WA_TERSVWERKO_STR-SHORTTEXT sy-vline 
WA_TERSVWERKO_STR-RERF sy-vline 
WA_TERSVWERKO_STR-DERF sy-vline 
WA_TERSVWERKO_STR-TERF sy-vline 
WA_TERSVWERKO_STR-REHER sy-vline 
WA_TERSVWERKO_STR-RBEAR sy-vline 
WA_TERSVWERKO_STR-DBEAR sy-vline 
WA_TERSVWERKO_STR-TBEAR sy-vline 
WA_TERSVWERKO_STR-RBHER sy-vline 
WA_TERSVWERKO_STR-PRICE_INDEX sy-vline 
WA_TERSVWERKO_STR-STRIKE_IN_POINTS sy-vline 
WA_TERSVWERKO_STR-BASICRATE_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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