ABAP Select data from SAP table P15_CUDS3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P15_CUDS3 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 P15_CUDS3. 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 P15_CUDS3 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_P15_CUDS3 TYPE STANDARD TABLE OF P15_CUDS3,
      WA_P15_CUDS3 TYPE P15_CUDS3,
      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: <P15_CUDS3> TYPE P15_CUDS3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P15_CUDS3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P15_CUDS3
  INTO TABLE IT_P15_CUDS3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P15_CUDS3
*  INTO TABLE @DATA(IT_P15_CUDS32).
*--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_P15_CUDS3 INDEX 1 INTO DATA(WA_P15_CUDS32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P15_CUDS3 ASSIGNING <P15_CUDS3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P15_CUDS3>-DAYTX = 1.
<P15_CUDS3>-WEEKN = 1.
<P15_CUDS3>-CDATE = 1.
<P15_CUDS3>-AWART = 1.
<P15_CUDS3>-OBEGD = 1.

ENDLOOP.

LOOP AT IT_P15_CUDS3 INTO WA_P15_CUDS3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P15_CUDS3-OENDD, sy-vline,
  WA_P15_CUDS3-KENN1, sy-vline,
  WA_P15_CUDS3-KENN2, sy-vline,
  WA_P15_CUDS3-MODIF, sy-vline,
  WA_P15_CUDS3-SUBRU, sy-vline,
  WA_P15_CUDS3-DAYAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P15_CUDS3 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_P15_CUDS3 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_P15_CUDS3 INTO WA_P15_CUDS3.


*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_P15_CUDS3_STR, 
DAYTX TYPE STRING,
WEEKN TYPE STRING,
CDATE TYPE STRING,
AWART TYPE STRING,
OBEGD TYPE STRING,
OENDD TYPE STRING,
KENN1 TYPE STRING,
KENN2 TYPE STRING,
MODIF TYPE STRING,
SUBRU TYPE STRING,
DAYAB TYPE STRING,
DAYEV TYPE STRING,
KLBE1 TYPE STRING,
KLBE2 TYPE STRING,
GRASI TYPE STRING,
GRAER TYPE STRING,
PROLE TYPE STRING,
LNGTH TYPE STRING,
DOUBL TYPE STRING,
BONUS TYPE STRING,
MOABW TYPE STRING,
TPEVE TYPE STRING,
OKEN1 TYPE STRING,
OKEN2 TYPE STRING,
OTHER TYPE STRING,
CUSTO TYPE STRING,
DOCNR TYPE STRING,
FRACTION TYPE STRING,
COVUNIT TYPE STRING,
SEQNO TYPE STRING,
EDURA TYPE STRING,
ABZNR TYPE STRING,
INTGR TYPE STRING,
INDMN TYPE STRING,
LGART TYPE STRING,
V0ZNR TYPE STRING,
PRC70 TYPE STRING,
BETPE TYPE STRING,
ANZHL TYPE STRING,
BETRG TYPE STRING,
WORKH TYPE STRING,
OVERH TYPE STRING,
HOLIH TYPE STRING,
BOX37 TYPE STRING,
BOX38 TYPE STRING,
XILLN TYPE STRING,
BOX40 TYPE STRING,
BOX41 TYPE STRING,
XMATE TYPE STRING,
BOX42 TYPE STRING,
BOX43 TYPE STRING,
XBREF TYPE STRING,
HBREF TYPE STRING,
BOX44 TYPE STRING,
BOX45 TYPE STRING,
XLA88 TYPE STRING,
BOX46 TYPE STRING,
BOX47 TYPE STRING,
XCIG1 TYPE STRING,
XCIG2 TYPE STRING,
BOX39 TYPE STRING,
BOX48 TYPE STRING,
BOX49 TYPE STRING,
XLEAV TYPE STRING,
BOX50 TYPE STRING,
BOX51 TYPE STRING,
XBLOO TYPE STRING,
BOX52 TYPE STRING,
XINDE TYPE STRING,
XRETR TYPE STRING,
WEEKB TYPE STRING,
DAYSB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P15_CUDS3_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_P15_CUDS3_STR-DAYTX sy-vline 
WA_P15_CUDS3_STR-WEEKN sy-vline 
WA_P15_CUDS3_STR-CDATE sy-vline 
WA_P15_CUDS3_STR-AWART sy-vline 
WA_P15_CUDS3_STR-OBEGD sy-vline 
WA_P15_CUDS3_STR-OENDD sy-vline 
WA_P15_CUDS3_STR-KENN1 sy-vline 
WA_P15_CUDS3_STR-KENN2 sy-vline 
WA_P15_CUDS3_STR-MODIF sy-vline 
WA_P15_CUDS3_STR-SUBRU sy-vline 
WA_P15_CUDS3_STR-DAYAB sy-vline 
WA_P15_CUDS3_STR-DAYEV sy-vline 
WA_P15_CUDS3_STR-KLBE1 sy-vline 
WA_P15_CUDS3_STR-KLBE2 sy-vline 
WA_P15_CUDS3_STR-GRASI sy-vline 
WA_P15_CUDS3_STR-GRAER sy-vline 
WA_P15_CUDS3_STR-PROLE sy-vline 
WA_P15_CUDS3_STR-LNGTH sy-vline 
WA_P15_CUDS3_STR-DOUBL sy-vline 
WA_P15_CUDS3_STR-BONUS sy-vline 
WA_P15_CUDS3_STR-MOABW sy-vline 
WA_P15_CUDS3_STR-TPEVE sy-vline 
WA_P15_CUDS3_STR-OKEN1 sy-vline 
WA_P15_CUDS3_STR-OKEN2 sy-vline 
WA_P15_CUDS3_STR-OTHER sy-vline 
WA_P15_CUDS3_STR-CUSTO sy-vline 
WA_P15_CUDS3_STR-DOCNR sy-vline 
WA_P15_CUDS3_STR-FRACTION sy-vline 
WA_P15_CUDS3_STR-COVUNIT sy-vline 
WA_P15_CUDS3_STR-SEQNO sy-vline 
WA_P15_CUDS3_STR-EDURA sy-vline 
WA_P15_CUDS3_STR-ABZNR sy-vline 
WA_P15_CUDS3_STR-INTGR sy-vline 
WA_P15_CUDS3_STR-INDMN sy-vline 
WA_P15_CUDS3_STR-LGART sy-vline 
WA_P15_CUDS3_STR-V0ZNR sy-vline 
WA_P15_CUDS3_STR-PRC70 sy-vline 
WA_P15_CUDS3_STR-BETPE sy-vline 
WA_P15_CUDS3_STR-ANZHL sy-vline 
WA_P15_CUDS3_STR-BETRG sy-vline 
WA_P15_CUDS3_STR-WORKH sy-vline 
WA_P15_CUDS3_STR-OVERH sy-vline 
WA_P15_CUDS3_STR-HOLIH sy-vline 
WA_P15_CUDS3_STR-BOX37 sy-vline 
WA_P15_CUDS3_STR-BOX38 sy-vline 
WA_P15_CUDS3_STR-XILLN sy-vline 
WA_P15_CUDS3_STR-BOX40 sy-vline 
WA_P15_CUDS3_STR-BOX41 sy-vline 
WA_P15_CUDS3_STR-XMATE sy-vline 
WA_P15_CUDS3_STR-BOX42 sy-vline 
WA_P15_CUDS3_STR-BOX43 sy-vline 
WA_P15_CUDS3_STR-XBREF sy-vline 
WA_P15_CUDS3_STR-HBREF sy-vline 
WA_P15_CUDS3_STR-BOX44 sy-vline 
WA_P15_CUDS3_STR-BOX45 sy-vline 
WA_P15_CUDS3_STR-XLA88 sy-vline 
WA_P15_CUDS3_STR-BOX46 sy-vline 
WA_P15_CUDS3_STR-BOX47 sy-vline 
WA_P15_CUDS3_STR-XCIG1 sy-vline 
WA_P15_CUDS3_STR-XCIG2 sy-vline 
WA_P15_CUDS3_STR-BOX39 sy-vline 
WA_P15_CUDS3_STR-BOX48 sy-vline 
WA_P15_CUDS3_STR-BOX49 sy-vline 
WA_P15_CUDS3_STR-XLEAV sy-vline 
WA_P15_CUDS3_STR-BOX50 sy-vline 
WA_P15_CUDS3_STR-BOX51 sy-vline 
WA_P15_CUDS3_STR-XBLOO sy-vline 
WA_P15_CUDS3_STR-BOX52 sy-vline 
WA_P15_CUDS3_STR-XINDE sy-vline 
WA_P15_CUDS3_STR-XRETR sy-vline 
WA_P15_CUDS3_STR-WEEKB sy-vline 
WA_P15_CUDS3_STR-DAYSB sy-vline      INTO ld_text SEPARATED BY SPACE.

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