ABAP Select data from SAP table TTEPDT_EXEMPVALUE_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_EXEMPVALUE_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_EXEMPVALUE_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_EXEMPVALUE_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_EXEMPVALUE_ST TYPE STANDARD TABLE OF TTEPDT_EXEMPVALUE_ST,
      WA_TTEPDT_EXEMPVALUE_ST TYPE TTEPDT_EXEMPVALUE_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_EXEMPVALUE_ST> TYPE TTEPDT_EXEMPVALUE_ST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTEPDT_EXEMPVALUE_ST
*  INTO TABLE @DATA(IT_TTEPDT_EXEMPVALUE_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_EXEMPVALUE_ST INDEX 1 INTO DATA(WA_TTEPDT_EXEMPVALUE_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTEPDT_EXEMPVALUE_ST>-BUSPARTNERID = 1.
<TTEPDT_EXEMPVALUE_ST>-COUNTRYISO = 1.
<TTEPDT_EXEMPVALUE_ST>-TAXTYP = 1.
<TTEPDT_EXEMPVALUE_ST>-ACCCOMPONENT = 1.
<TTEPDT_EXEMPVALUE_ST>-EXEMPTIONID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTEPDT_EXEMPVALUE_ST-VALIDFROM, sy-vline,
  WA_TTEPDT_EXEMPVALUE_ST-VALIDTO, sy-vline,
  WA_TTEPDT_EXEMPVALUE_ST-LICENSE, sy-vline,
  WA_TTEPDT_EXEMPVALUE_ST-AMOUNT, sy-vline,
  WA_TTEPDT_EXEMPVALUE_ST-CURRENCYUNIT, sy-vline,
  WA_TTEPDT_EXEMPVALUE_ST-MAX_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTEPDT_EXEMPVALUE_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_EXEMPVALUE_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_EXEMPVALUE_ST INTO WA_TTEPDT_EXEMPVALUE_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_EXEMPVALUE_ST_STR, 
BUSPARTNERID TYPE STRING,
COUNTRYISO TYPE STRING,
TAXTYP TYPE STRING,
ACCCOMPONENT TYPE STRING,
EXEMPTIONID TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
LICENSE TYPE STRING,
AMOUNT TYPE STRING,
CURRENCYUNIT TYPE STRING,
MAX_AMOUNT TYPE STRING,
CUR_AMOUNT TYPE STRING,
REASON_CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTEPDT_EXEMPVALUE_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_EXEMPVALUE_ST_STR-BUSPARTNERID sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-COUNTRYISO sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-TAXTYP sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-ACCCOMPONENT sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-EXEMPTIONID sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-VALIDFROM sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-VALIDTO sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-LICENSE sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-AMOUNT sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-CURRENCYUNIT sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-MAX_AMOUNT sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-CUR_AMOUNT sy-vline 
WA_TTEPDT_EXEMPVALUE_ST_STR-REASON_CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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