ABAP Select data from SAP table PCONSNPCANPDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCONSNPCANPDATA
*  INTO TABLE @DATA(IT_PCONSNPCANPDATA2).
*--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_PCONSNPCANPDATA INDEX 1 INTO DATA(WA_PCONSNPCANPDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCONSNPCANPDATA>-MANDT = 1.
<PCONSNPCANPDATA>-DOCUMENT_ID = 1.
<PCONSNPCANPDATA>-APPLICATION = 1.
<PCONSNPCANPDATA>-TIMESTAMP = 1.
<PCONSNPCANPDATA>-TPOSN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCONSNPCANPDATA-CANCL_GUID, sy-vline,
  WA_PCONSNPCANPDATA-NEW_PLOT_ID, sy-vline,
  WA_PCONSNPCANPDATA-CANC_PLOT_ID, sy-vline,
  WA_PCONSNPCANPDATA-SRC_PLOT_ID, sy-vline,
  WA_PCONSNPCANPDATA-SIDE, sy-vline,
  WA_PCONSNPCANPDATA-TPOSN_COM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCONSNPCANPDATA 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_PCONSNPCANPDATA 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_PCONSNPCANPDATA INTO WA_PCONSNPCANPDATA.


*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 CUNIT, internal->external for field CANCL_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-CANCL_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-CANCL_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TRADEUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-TRADEUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-TRADEUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRLINK_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-PRLINK_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-PRLINK_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CANCL_UNIT_1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-CANCL_UNIT_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-CANCL_UNIT_1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN_1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-KMEIN_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-KMEIN_1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN_2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-KMEIN_2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-KMEIN_2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN_3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-KMEIN_3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-KMEIN_3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN_4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCONSNPCANPDATA-KMEIN_4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCONSNPCANPDATA-KMEIN_4.
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_PCONSNPCANPDATA_STR, 
MANDT TYPE STRING,
DOCUMENT_ID TYPE STRING,
APPLICATION TYPE STRING,
TIMESTAMP TYPE STRING,
TPOSN TYPE STRING,
CANCL_GUID TYPE STRING,
NEW_PLOT_ID TYPE STRING,
CANC_PLOT_ID TYPE STRING,
SRC_PLOT_ID TYPE STRING,
SIDE TYPE STRING,
TPOSN_COM TYPE STRING,
OBLIGATION_ID TYPE STRING,
CANCL_QTY TYPE STRING,
CANCL_UNIT TYPE STRING,
ACCGO_NUMBER_OF_VEHICLES TYPE STRING,
TRADEQTY TYPE STRING,
TRADEUOM TYPE STRING,
PRLINK_ID TYPE STRING,
CANCL_STAT TYPE STRING,
CANCL_FEE TYPE STRING,
CURRENCY_FEE_CANC TYPE STRING,
CANCL_PRC_UNIT TYPE STRING,
CANCL_UNIT_1 TYPE STRING,
UNDERFILL_ID TYPE STRING,
SETTLE_IMM TYPE STRING,
COND_TYPE_1 TYPE STRING,
KBETR_1 TYPE STRING,
KONWA_1 TYPE STRING,
KPEIN_1 TYPE STRING,
KMEIN_1 TYPE STRING,
TRD_KBETR1 TYPE STRING,
PRC_DATE1 TYPE STRING,
COND_TYPE_2 TYPE STRING,
KBETR_2 TYPE STRING,
KONWA_2 TYPE STRING,
KPEIN_2 TYPE STRING,
KMEIN_2 TYPE STRING,
TRD_KBETR2 TYPE STRING,
PRC_DATE2 TYPE STRING,
COND_TYPE_3 TYPE STRING,
KBETR_3 TYPE STRING,
KONWA_3 TYPE STRING,
KPEIN_3 TYPE STRING,
KMEIN_3 TYPE STRING,
TRD_KBETR3 TYPE STRING,
PRC_DATE3 TYPE STRING,
COND_TYPE_4 TYPE STRING,
KBETR_4 TYPE STRING,
KONWA_4 TYPE STRING,
KPEIN_4 TYPE STRING,
KMEIN_4 TYPE STRING,
TRD_KBETR4 TYPE STRING,
PRC_DATE4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCONSNPCANPDATA_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_PCONSNPCANPDATA_STR-MANDT sy-vline 
WA_PCONSNPCANPDATA_STR-DOCUMENT_ID sy-vline 
WA_PCONSNPCANPDATA_STR-APPLICATION sy-vline 
WA_PCONSNPCANPDATA_STR-TIMESTAMP sy-vline 
WA_PCONSNPCANPDATA_STR-TPOSN sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_GUID sy-vline 
WA_PCONSNPCANPDATA_STR-NEW_PLOT_ID sy-vline 
WA_PCONSNPCANPDATA_STR-CANC_PLOT_ID sy-vline 
WA_PCONSNPCANPDATA_STR-SRC_PLOT_ID sy-vline 
WA_PCONSNPCANPDATA_STR-SIDE sy-vline 
WA_PCONSNPCANPDATA_STR-TPOSN_COM sy-vline 
WA_PCONSNPCANPDATA_STR-OBLIGATION_ID sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_QTY sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_UNIT sy-vline 
WA_PCONSNPCANPDATA_STR-ACCGO_NUMBER_OF_VEHICLES sy-vline 
WA_PCONSNPCANPDATA_STR-TRADEQTY sy-vline 
WA_PCONSNPCANPDATA_STR-TRADEUOM sy-vline 
WA_PCONSNPCANPDATA_STR-PRLINK_ID sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_STAT sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_FEE sy-vline 
WA_PCONSNPCANPDATA_STR-CURRENCY_FEE_CANC sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_PRC_UNIT sy-vline 
WA_PCONSNPCANPDATA_STR-CANCL_UNIT_1 sy-vline 
WA_PCONSNPCANPDATA_STR-UNDERFILL_ID sy-vline 
WA_PCONSNPCANPDATA_STR-SETTLE_IMM sy-vline 
WA_PCONSNPCANPDATA_STR-COND_TYPE_1 sy-vline 
WA_PCONSNPCANPDATA_STR-KBETR_1 sy-vline 
WA_PCONSNPCANPDATA_STR-KONWA_1 sy-vline 
WA_PCONSNPCANPDATA_STR-KPEIN_1 sy-vline 
WA_PCONSNPCANPDATA_STR-KMEIN_1 sy-vline 
WA_PCONSNPCANPDATA_STR-TRD_KBETR1 sy-vline 
WA_PCONSNPCANPDATA_STR-PRC_DATE1 sy-vline 
WA_PCONSNPCANPDATA_STR-COND_TYPE_2 sy-vline 
WA_PCONSNPCANPDATA_STR-KBETR_2 sy-vline 
WA_PCONSNPCANPDATA_STR-KONWA_2 sy-vline 
WA_PCONSNPCANPDATA_STR-KPEIN_2 sy-vline 
WA_PCONSNPCANPDATA_STR-KMEIN_2 sy-vline 
WA_PCONSNPCANPDATA_STR-TRD_KBETR2 sy-vline 
WA_PCONSNPCANPDATA_STR-PRC_DATE2 sy-vline 
WA_PCONSNPCANPDATA_STR-COND_TYPE_3 sy-vline 
WA_PCONSNPCANPDATA_STR-KBETR_3 sy-vline 
WA_PCONSNPCANPDATA_STR-KONWA_3 sy-vline 
WA_PCONSNPCANPDATA_STR-KPEIN_3 sy-vline 
WA_PCONSNPCANPDATA_STR-KMEIN_3 sy-vline 
WA_PCONSNPCANPDATA_STR-TRD_KBETR3 sy-vline 
WA_PCONSNPCANPDATA_STR-PRC_DATE3 sy-vline 
WA_PCONSNPCANPDATA_STR-COND_TYPE_4 sy-vline 
WA_PCONSNPCANPDATA_STR-KBETR_4 sy-vline 
WA_PCONSNPCANPDATA_STR-KONWA_4 sy-vline 
WA_PCONSNPCANPDATA_STR-KPEIN_4 sy-vline 
WA_PCONSNPCANPDATA_STR-KMEIN_4 sy-vline 
WA_PCONSNPCANPDATA_STR-TRD_KBETR4 sy-vline 
WA_PCONSNPCANPDATA_STR-PRC_DATE4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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