ABAP Select data from SAP table TTEPDT_EXEMPT_COM_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTEPDT_EXEMPT_COM_ST
*  INTO TABLE @DATA(IT_TTEPDT_EXEMPT_COM_ST2).
*--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_TTEPDT_EXEMPT_COM_ST INDEX 1 INTO DATA(WA_TTEPDT_EXEMPT_COM_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTEPDT_EXEMPT_COM_ST>-EXEMPTIONID = 1.
<TTEPDT_EXEMPT_COM_ST>-TAXTYPE = 1.
<TTEPDT_EXEMPT_COM_ST>-EXEMPTIONTYPE = 1.
<TTEPDT_EXEMPT_COM_ST>-EXEMPTIONCLASS = 1.
<TTEPDT_EXEMPT_COM_ST>-LICENSE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTEPDT_EXEMPT_COM_ST-OWNERSPARTNERID, sy-vline,
  WA_TTEPDT_EXEMPT_COM_ST-ISSUINGAUTHORITY, sy-vline,
  WA_TTEPDT_EXEMPT_COM_ST-ISSUINGDATE, sy-vline,
  WA_TTEPDT_EXEMPT_COM_ST-REASONCODE, sy-vline,
  WA_TTEPDT_EXEMPT_COM_ST-TRANSPORTMODE, sy-vline,
  WA_TTEPDT_EXEMPT_COM_ST-VALIDFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTEPDT_EXEMPT_COM_ST 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_TTEPDT_EXEMPT_COM_ST 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_TTEPDT_EXEMPT_COM_ST INTO WA_TTEPDT_EXEMPT_COM_ST.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TTEPDT_EXEMPT_COM_ST_STR, 
EXEMPTIONID TYPE STRING,
TAXTYPE TYPE STRING,
EXEMPTIONTYPE TYPE STRING,
EXEMPTIONCLASS TYPE STRING,
LICENSE TYPE STRING,
OWNERSPARTNERID TYPE STRING,
ISSUINGAUTHORITY TYPE STRING,
ISSUINGDATE TYPE STRING,
REASONCODE TYPE STRING,
TRANSPORTMODE TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
FOLLOWONLICENSE TYPE STRING,
CALCULATIONTYPE TYPE STRING,
EXEMPTIONRATE TYPE STRING,
CURRENCYUNIT TYPE STRING,
BASEQUANTITY TYPE STRING,
BASEQUANTITYUNIT TYPE STRING,
CUMULATEDAMOUNT TYPE STRING,
CUMMAXAMOUNT TYPE STRING,
TOPUPAMOUNT TYPE STRING,
CUMLATIONCURUNIT TYPE STRING,
EXEMPTQUANTITY TYPE STRING,
CUMULATEDQTY TYPE STRING,
CUMMAXQUANTITY TYPE STRING,
TOPUPQUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTEPDT_EXEMPT_COM_ST_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_TTEPDT_EXEMPT_COM_ST_STR-EXEMPTIONID sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-TAXTYPE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-EXEMPTIONTYPE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-EXEMPTIONCLASS sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-LICENSE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-OWNERSPARTNERID sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-ISSUINGAUTHORITY sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-ISSUINGDATE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-REASONCODE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-TRANSPORTMODE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-VALIDFROM sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-VALIDTO sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-FOLLOWONLICENSE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CALCULATIONTYPE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-EXEMPTIONRATE sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CURRENCYUNIT sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-BASEQUANTITY sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-BASEQUANTITYUNIT sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CUMULATEDAMOUNT sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CUMMAXAMOUNT sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-TOPUPAMOUNT sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CUMLATIONCURUNIT sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-EXEMPTQUANTITY sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CUMULATEDQTY sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-CUMMAXQUANTITY sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-TOPUPQUANTITY sy-vline 
WA_TTEPDT_EXEMPT_COM_ST_STR-QUANTITYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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