ABAP Select data from SAP table CDPQSHDRAPPQU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDPQSHDRAPPQU
*  INTO TABLE @DATA(IT_CDPQSHDRAPPQU2).
*--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_CDPQSHDRAPPQU INDEX 1 INTO DATA(WA_CDPQSHDRAPPQU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDPQSHDRAPPQU>-MANDT = 1.
<CDPQSHDRAPPQU>-TRADINGCONTRACTNUMBER = 1.
<CDPQSHDRAPPQU>-TRADINGCONTRACTITEM = 1.
<CDPQSHDRAPPQU>-DISCPREMQTYSCHEDULEVERSION = 1.
<CDPQSHDRAPPQU>-DISCPREMQTYSCHEDVALDTYVERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDPQSHDRAPPQU-DISCPREMQTYSCHEDULENAME, sy-vline,
  WA_CDPQSHDRAPPQU-DISCPREMQTYVERSIONDATETIME, sy-vline,
  WA_CDPQSHDRAPPQU-DISCPREMQTYSCHEDULEUNIQUEID, sy-vline,
  WA_CDPQSHDRAPPQU-DISCPREMQTYOVRDTIMING, sy-vline,
  WA_CDPQSHDRAPPQU-DISCPREMQTYOVRDTIMINGTEXT, sy-vline,
  WA_CDPQSHDRAPPQU-DISCPREMQTYOVRDISUNLOADLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDPQSHDRAPPQU 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_CDPQSHDRAPPQU 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_CDPQSHDRAPPQU INTO WA_CDPQSHDRAPPQU.


*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 TRADINGCONTRACTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDPQSHDRAPPQU-TRADINGCONTRACTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDPQSHDRAPPQU-TRADINGCONTRACTNUMBER.
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_CDPQSHDRAPPQU_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
DISCPREMQTYSCHEDULEVERSION TYPE STRING,
DISCPREMQTYSCHEDVALDTYVERSION TYPE STRING,
DISCPREMQTYSCHEDULENAME TYPE STRING,
DISCPREMQTYVERSIONDATETIME TYPE STRING,
DISCPREMQTYSCHEDULEUNIQUEID TYPE STRING,
DISCPREMQTYOVRDTIMING TYPE STRING,
DISCPREMQTYOVRDTIMINGTEXT TYPE STRING,
DISCPREMQTYOVRDISUNLOADLOC TYPE STRING,
DISCPREMQTYOVRDGOVANALYSISCODE TYPE STRING,
DISCPREMQTYOVRDGOVWEIGHTCODE TYPE STRING,
DISCPREMQTYOVRDGOVTERM TYPE STRING,
DISCPREMQTYSCHEDULEUUID TYPE STRING,
DISCPREMQTYISOVRDFLAG TYPE STRING,
ACMOVRRDEVERSIONDPQSVAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDPQSHDRAPPQU_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_CDPQSHDRAPPQU_STR-MANDT sy-vline 
WA_CDPQSHDRAPPQU_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_CDPQSHDRAPPQU_STR-TRADINGCONTRACTITEM sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYSCHEDULEVERSION sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYSCHEDVALDTYVERSION sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYSCHEDULENAME sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYVERSIONDATETIME sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYSCHEDULEUNIQUEID sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYOVRDTIMING sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYOVRDTIMINGTEXT sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYOVRDISUNLOADLOC sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYOVRDGOVANALYSISCODE sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYOVRDGOVWEIGHTCODE sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYOVRDGOVTERM sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYSCHEDULEUUID sy-vline 
WA_CDPQSHDRAPPQU_STR-DISCPREMQTYISOVRDFLAG sy-vline 
WA_CDPQSHDRAPPQU_STR-ACMOVRRDEVERSIONDPQSVAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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