ABAP Select data from SAP table TDS_CONDACCIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_CONDACCIT 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_CONDACCIT. 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_CONDACCIT 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_CONDACCIT TYPE STANDARD TABLE OF TDS_CONDACCIT,
      WA_TDS_CONDACCIT TYPE TDS_CONDACCIT,
      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_CONDACCIT> TYPE TDS_CONDACCIT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_CONDACCIT
*  INTO TABLE @DATA(IT_TDS_CONDACCIT2).
*--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_CONDACCIT INDEX 1 INTO DATA(WA_TDS_CONDACCIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_CONDACCIT>-MANDT = 1.
<TDS_CONDACCIT>-VBELN = 1.
<TDS_CONDACCIT>-KNUMH = 1.
<TDS_CONDACCIT>-KPOSN = 1.
<TDS_CONDACCIT>-STUNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_CONDACCIT-ZAEHK, sy-vline,
  WA_TDS_CONDACCIT-AWTYP, sy-vline,
  WA_TDS_CONDACCIT-AWREF, sy-vline,
  WA_TDS_CONDACCIT-AWORG, sy-vline,
  WA_TDS_CONDACCIT-POSNR, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_TDS_CONDACCIT 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_CONDACCIT 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_CONDACCIT INTO WA_TDS_CONDACCIT.


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

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_CONDACCIT-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_CONDACCIT-AWREF.
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_CONDACCIT_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
KNUMH TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
POSNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_CONDACCIT_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_CONDACCIT_STR-MANDT sy-vline 
WA_TDS_CONDACCIT_STR-VBELN sy-vline 
WA_TDS_CONDACCIT_STR-KNUMH sy-vline 
WA_TDS_CONDACCIT_STR-KPOSN sy-vline 
WA_TDS_CONDACCIT_STR-STUNR sy-vline 
WA_TDS_CONDACCIT_STR-ZAEHK sy-vline 
WA_TDS_CONDACCIT_STR-AWTYP sy-vline 
WA_TDS_CONDACCIT_STR-AWREF sy-vline 
WA_TDS_CONDACCIT_STR-AWORG sy-vline 
WA_TDS_CONDACCIT_STR-POSNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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