ABAP Select data from SAP table Q0146DED into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0146DED 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 Q0146DED. 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 Q0146DED 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_Q0146DED TYPE STANDARD TABLE OF Q0146DED,
      WA_Q0146DED TYPE Q0146DED,
      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: <Q0146DED> TYPE Q0146DED.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0146DED.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0146DED
  INTO TABLE IT_Q0146DED.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0146DED
*  INTO TABLE @DATA(IT_Q0146DED2).
*--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_Q0146DED INDEX 1 INTO DATA(WA_Q0146DED2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0146DED ASSIGNING <Q0146DED>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0146DED>-CLDED = 1.
<Q0146DED>-PPDED = 1.
<Q0146DED>-LADED = 1.
<Q0146DED>-SADED = 1.
<Q0146DED>-ACDED = 1.

ENDLOOP.

LOOP AT IT_Q0146DED INTO WA_Q0146DED.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0146DED-SPDED, sy-vline,
  WA_Q0146DED-NLDED, sy-vline,
  WA_Q0146DED-NPDED, sy-vline,
  WA_Q0146DED-NSDED, sy-vline,
  WA_Q0146DED-TLDED, sy-vline,
  WA_Q0146DED-TPDED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0146DED 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_Q0146DED 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_Q0146DED INTO WA_Q0146DED.


*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_Q0146DED_STR, 
CLDED TYPE STRING,
PPDED TYPE STRING,
LADED TYPE STRING,
SADED TYPE STRING,
ACDED TYPE STRING,
SPDED TYPE STRING,
NLDED TYPE STRING,
NPDED TYPE STRING,
NSDED TYPE STRING,
TLDED TYPE STRING,
TPDED TYPE STRING,
TODED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0146DED_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_Q0146DED_STR-CLDED sy-vline 
WA_Q0146DED_STR-PPDED sy-vline 
WA_Q0146DED_STR-LADED sy-vline 
WA_Q0146DED_STR-SADED sy-vline 
WA_Q0146DED_STR-ACDED sy-vline 
WA_Q0146DED_STR-SPDED sy-vline 
WA_Q0146DED_STR-NLDED sy-vline 
WA_Q0146DED_STR-NPDED sy-vline 
WA_Q0146DED_STR-NSDED sy-vline 
WA_Q0146DED_STR-TLDED sy-vline 
WA_Q0146DED_STR-TPDED sy-vline 
WA_Q0146DED_STR-TODED sy-vline      INTO ld_text SEPARATED BY SPACE.

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