ABAP Select data from SAP table TDS_INQ_COND_SINGLE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_INQ_COND_SINGLE
*  INTO TABLE @DATA(IT_TDS_INQ_COND_SINGLE2).
*--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_TDS_INQ_COND_SINGLE INDEX 1 INTO DATA(WA_TDS_INQ_COND_SINGLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_INQ_COND_SINGLE>-HANDLE = 1.
<TDS_INQ_COND_SINGLE>-KSCHL = 1.
<TDS_INQ_COND_SINGLE>-KSCHL_I = 1.
<TDS_INQ_COND_SINGLE>-KSCHL_T_R = 1.
<TDS_INQ_COND_SINGLE>-KBETR_EXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_INQ_COND_SINGLE-KBETR_EXT_I, sy-vline,
  WA_TDS_INQ_COND_SINGLE-KOEIN, sy-vline,
  WA_TDS_INQ_COND_SINGLE-KOEIN_I, sy-vline,
  WA_TDS_INQ_COND_SINGLE-KPEIN, sy-vline,
  WA_TDS_INQ_COND_SINGLE-KPEIN_I, sy-vline,
  WA_TDS_INQ_COND_SINGLE-KMEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_INQ_COND_SINGLE 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_TDS_INQ_COND_SINGLE 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_TDS_INQ_COND_SINGLE INTO WA_TDS_INQ_COND_SINGLE.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_INQ_COND_SINGLE-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_INQ_COND_SINGLE-KMEIN.
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_TDS_INQ_COND_SINGLE_STR, 
HANDLE TYPE STRING,
KSCHL TYPE STRING,
KSCHL_I TYPE STRING,
KSCHL_T_R TYPE STRING,
KBETR_EXT TYPE STRING,
KBETR_EXT_I TYPE STRING,
KOEIN TYPE STRING,
KOEIN_I TYPE STRING,
KPEIN TYPE STRING,
KPEIN_I TYPE STRING,
KMEIN TYPE STRING,
KMEIN_I TYPE STRING,
KMPRS_R TYPE STRING,
KINAK TYPE STRING,
KINAK_T_R TYPE STRING,
KINAK_ICON TYPE STRING,
KHERK_R_R TYPE STRING,
KHERK_T_R TYPE STRING,
VIS_KMPEIN TYPE STRING,
DEL_ENABLE TYPE STRING,
VIS_KBETR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_INQ_COND_SINGLE_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_TDS_INQ_COND_SINGLE_STR-HANDLE sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KSCHL sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KSCHL_I sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KSCHL_T_R sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KBETR_EXT sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KBETR_EXT_I sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KOEIN sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KOEIN_I sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KPEIN sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KPEIN_I sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KMEIN sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KMEIN_I sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KMPRS_R sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KINAK sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KINAK_T_R sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KINAK_ICON sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KHERK_R_R sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-KHERK_T_R sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-VIS_KMPEIN sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-DEL_ENABLE sy-vline 
WA_TDS_INQ_COND_SINGLE_STR-VIS_KBETR sy-vline      INTO ld_text SEPARATED BY SPACE.

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