ABAP Select data from SAP table QDDR_CBC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QDDR_CBC
*  INTO TABLE @DATA(IT_QDDR_CBC2).
*--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_QDDR_CBC INDEX 1 INTO DATA(WA_QDDR_CBC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QDDR_CBC>-I_MANDT = 1.
<QDDR_CBC>-I_DYNREGEL = 1.
<QDDR_CBC>-I_ANZPRRED_1 = 1.
<QDDR_CBC>-I_ANZPRRED_2 = 1.
<QDDR_CBC>-I_ANZPRRED_3 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QDDR_CBC-I_ANZPRRED_4, sy-vline,
  WA_QDDR_CBC-I_ANZRWVER_1, sy-vline,
  WA_QDDR_CBC-I_ANZRWVER_2, sy-vline,
  WA_QDDR_CBC-I_ANZRWVER_3, sy-vline,
  WA_QDDR_CBC-I_ANZRWVER_4, sy-vline,
  WA_QDDR_CBC-I_KURZTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QDDR_CBC 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_QDDR_CBC 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_QDDR_CBC INTO WA_QDDR_CBC.


*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_QDDR_CBC_STR, 
I_MANDT TYPE STRING,
I_DYNREGEL TYPE STRING,
I_ANZPRRED_1 TYPE STRING,
I_ANZPRRED_2 TYPE STRING,
I_ANZPRRED_3 TYPE STRING,
I_ANZPRRED_4 TYPE STRING,
I_ANZRWVER_1 TYPE STRING,
I_ANZRWVER_2 TYPE STRING,
I_ANZRWVER_3 TYPE STRING,
I_ANZRWVER_4 TYPE STRING,
I_KURZTEXT TYPE STRING,
I_KURZTEXT_1 TYPE STRING,
I_KURZTEXT_2 TYPE STRING,
I_KURZTEXT_3 TYPE STRING,
I_KURZTEXT_4 TYPE STRING,
I_KZSKIP_1 TYPE STRING,
I_KZSKIP_2 TYPE STRING,
I_KZSKIP_3 TYPE STRING,
I_KZSKIP_4 TYPE STRING,
I_KZSTUFEANF_1 TYPE STRING,
I_KZSTUFEANF_2 TYPE STRING,
I_KZSTUFEANF_3 TYPE STRING,
I_KZSTUFEANF_4 TYPE STRING,
I_MAXSKIPDR_1 TYPE STRING,
I_MAXSKIPDR_2 TYPE STRING,
I_MAXSKIPDR_3 TYPE STRING,
I_MAXSKIPDR_4 TYPE STRING,
I_PRSCHAERFE_1 TYPE STRING,
I_PRSCHAERFE_2 TYPE STRING,
I_PRSCHAERFE_3 TYPE STRING,
I_PRSCHAERFE_4 TYPE STRING,
I_PRSTUFE_1 TYPE STRING,
I_PRSTUFE_2 TYPE STRING,
I_PRSTUFE_3 TYPE STRING,
I_PRSTUFE_4 TYPE STRING,
I_REDSTUFE_1 TYPE STRING,
I_REDSTUFE_2 TYPE STRING,
I_REDSTUFE_3 TYPE STRING,
I_REDSTUFE_4 TYPE STRING,
I_RESETTIMEQL TYPE STRING,
I_VERSTUFE_1 TYPE STRING,
I_VERSTUFE_2 TYPE STRING,
I_VERSTUFE_3 TYPE STRING,
I_VERSTUFE_4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QDDR_CBC_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_QDDR_CBC_STR-I_MANDT sy-vline 
WA_QDDR_CBC_STR-I_DYNREGEL sy-vline 
WA_QDDR_CBC_STR-I_ANZPRRED_1 sy-vline 
WA_QDDR_CBC_STR-I_ANZPRRED_2 sy-vline 
WA_QDDR_CBC_STR-I_ANZPRRED_3 sy-vline 
WA_QDDR_CBC_STR-I_ANZPRRED_4 sy-vline 
WA_QDDR_CBC_STR-I_ANZRWVER_1 sy-vline 
WA_QDDR_CBC_STR-I_ANZRWVER_2 sy-vline 
WA_QDDR_CBC_STR-I_ANZRWVER_3 sy-vline 
WA_QDDR_CBC_STR-I_ANZRWVER_4 sy-vline 
WA_QDDR_CBC_STR-I_KURZTEXT sy-vline 
WA_QDDR_CBC_STR-I_KURZTEXT_1 sy-vline 
WA_QDDR_CBC_STR-I_KURZTEXT_2 sy-vline 
WA_QDDR_CBC_STR-I_KURZTEXT_3 sy-vline 
WA_QDDR_CBC_STR-I_KURZTEXT_4 sy-vline 
WA_QDDR_CBC_STR-I_KZSKIP_1 sy-vline 
WA_QDDR_CBC_STR-I_KZSKIP_2 sy-vline 
WA_QDDR_CBC_STR-I_KZSKIP_3 sy-vline 
WA_QDDR_CBC_STR-I_KZSKIP_4 sy-vline 
WA_QDDR_CBC_STR-I_KZSTUFEANF_1 sy-vline 
WA_QDDR_CBC_STR-I_KZSTUFEANF_2 sy-vline 
WA_QDDR_CBC_STR-I_KZSTUFEANF_3 sy-vline 
WA_QDDR_CBC_STR-I_KZSTUFEANF_4 sy-vline 
WA_QDDR_CBC_STR-I_MAXSKIPDR_1 sy-vline 
WA_QDDR_CBC_STR-I_MAXSKIPDR_2 sy-vline 
WA_QDDR_CBC_STR-I_MAXSKIPDR_3 sy-vline 
WA_QDDR_CBC_STR-I_MAXSKIPDR_4 sy-vline 
WA_QDDR_CBC_STR-I_PRSCHAERFE_1 sy-vline 
WA_QDDR_CBC_STR-I_PRSCHAERFE_2 sy-vline 
WA_QDDR_CBC_STR-I_PRSCHAERFE_3 sy-vline 
WA_QDDR_CBC_STR-I_PRSCHAERFE_4 sy-vline 
WA_QDDR_CBC_STR-I_PRSTUFE_1 sy-vline 
WA_QDDR_CBC_STR-I_PRSTUFE_2 sy-vline 
WA_QDDR_CBC_STR-I_PRSTUFE_3 sy-vline 
WA_QDDR_CBC_STR-I_PRSTUFE_4 sy-vline 
WA_QDDR_CBC_STR-I_REDSTUFE_1 sy-vline 
WA_QDDR_CBC_STR-I_REDSTUFE_2 sy-vline 
WA_QDDR_CBC_STR-I_REDSTUFE_3 sy-vline 
WA_QDDR_CBC_STR-I_REDSTUFE_4 sy-vline 
WA_QDDR_CBC_STR-I_RESETTIMEQL sy-vline 
WA_QDDR_CBC_STR-I_VERSTUFE_1 sy-vline 
WA_QDDR_CBC_STR-I_VERSTUFE_2 sy-vline 
WA_QDDR_CBC_STR-I_VERSTUFE_3 sy-vline 
WA_QDDR_CBC_STR-I_VERSTUFE_4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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