ABAP Select data from SAP table PWCBCCKONP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PWCBCCKONP
*  INTO TABLE @DATA(IT_PWCBCCKONP2).
*--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_PWCBCCKONP INDEX 1 INTO DATA(WA_PWCBCCKONP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PWCBCCKONP>-MANDT = 1.
<PWCBCCKONP>-CONDITIONCONTRACT = 1.
<PWCBCCKONP>-CONDITIONRECORD = 1.
<PWCBCCKONP>-CONDITIONTYPE = 1.
<PWCBCCKONP>-CONDITIONTEXTID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PWCBCCKONP-PRICINGSCALETYPE, sy-vline,
  WA_PWCBCCKONP-PRICINGSCALEBASIS, sy-vline,
  WA_PWCBCCKONP-CONDITIONSCALEQUANTITY, sy-vline,
  WA_PWCBCCKONP-CONDITIONSCALEQUANTITYUNIT, sy-vline,
  WA_PWCBCCKONP-CONDITIONSCALEAMOUNT, sy-vline,
  WA_PWCBCCKONP-CONDITIONSCALEAMOUNTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PWCBCCKONP 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_PWCBCCKONP 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_PWCBCCKONP INTO WA_PWCBCCKONP.


*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 CONDITIONCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PWCBCCKONP-CONDITIONCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWCBCCKONP-CONDITIONCONTRACT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PWCBCCKONP-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PWCBCCKONP-BASEUNIT.
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_PWCBCCKONP_STR, 
MANDT TYPE STRING,
CONDITIONCONTRACT TYPE STRING,
CONDITIONRECORD TYPE STRING,
CONDITIONTYPE TYPE STRING,
CONDITIONTEXTID TYPE STRING,
PRICINGSCALETYPE TYPE STRING,
PRICINGSCALEBASIS TYPE STRING,
CONDITIONSCALEQUANTITY TYPE STRING,
CONDITIONSCALEQUANTITYUNIT TYPE STRING,
CONDITIONSCALEAMOUNT TYPE STRING,
CONDITIONSCALEAMOUNTCURRENCY TYPE STRING,
CONDITIONCALCULATIONTYPE TYPE STRING,
CONDITIONRATEVALUEUNIT TYPE STRING,
CONDITIONQUANTITY TYPE STRING,
CONDITIONQUANTITYUNIT TYPE STRING,
CONDITIONTOBASEQTYNMRTR TYPE STRING,
CONDITIONTOBASEQTYDNMNTR TYPE STRING,
BASEUNIT TYPE STRING,
CONDITIONLOWERLIMIT TYPE STRING,
CONDITIONUPPERLIMIT TYPE STRING,
CONDITIONALTERNATIVECURRENCY TYPE STRING,
CONDITIONEXCLUSION TYPE STRING,
CONDITIONISDELETED TYPE STRING,
ADDITIONALVALUEDAYS TYPE STRING,
FIXEDVALUEDATE TYPE STRING,
PAYMENTTERMS TYPE STRING,
CNDNMAXNUMBEROFSALESORDERS TYPE STRING,
MINIMUMCONDITIONBASISVALUE TYPE STRING,
MAXIMUMCONDITIONBASISVALUE TYPE STRING,
MAXIMUMCONDITIONAMOUNT TYPE STRING,
INCREMENTALSCALE TYPE STRING,
PRICINGSCALELINE TYPE STRING,
CONDITIONRELEASESTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PWCBCCKONP_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_PWCBCCKONP_STR-MANDT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONCONTRACT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONRECORD sy-vline 
WA_PWCBCCKONP_STR-CONDITIONTYPE sy-vline 
WA_PWCBCCKONP_STR-CONDITIONTEXTID sy-vline 
WA_PWCBCCKONP_STR-PRICINGSCALETYPE sy-vline 
WA_PWCBCCKONP_STR-PRICINGSCALEBASIS sy-vline 
WA_PWCBCCKONP_STR-CONDITIONSCALEQUANTITY sy-vline 
WA_PWCBCCKONP_STR-CONDITIONSCALEQUANTITYUNIT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONSCALEAMOUNT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONSCALEAMOUNTCURRENCY sy-vline 
WA_PWCBCCKONP_STR-CONDITIONCALCULATIONTYPE sy-vline 
WA_PWCBCCKONP_STR-CONDITIONRATEVALUEUNIT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONQUANTITY sy-vline 
WA_PWCBCCKONP_STR-CONDITIONQUANTITYUNIT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONTOBASEQTYNMRTR sy-vline 
WA_PWCBCCKONP_STR-CONDITIONTOBASEQTYDNMNTR sy-vline 
WA_PWCBCCKONP_STR-BASEUNIT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONLOWERLIMIT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONUPPERLIMIT sy-vline 
WA_PWCBCCKONP_STR-CONDITIONALTERNATIVECURRENCY sy-vline 
WA_PWCBCCKONP_STR-CONDITIONEXCLUSION sy-vline 
WA_PWCBCCKONP_STR-CONDITIONISDELETED sy-vline 
WA_PWCBCCKONP_STR-ADDITIONALVALUEDAYS sy-vline 
WA_PWCBCCKONP_STR-FIXEDVALUEDATE sy-vline 
WA_PWCBCCKONP_STR-PAYMENTTERMS sy-vline 
WA_PWCBCCKONP_STR-CNDNMAXNUMBEROFSALESORDERS sy-vline 
WA_PWCBCCKONP_STR-MINIMUMCONDITIONBASISVALUE sy-vline 
WA_PWCBCCKONP_STR-MAXIMUMCONDITIONBASISVALUE sy-vline 
WA_PWCBCCKONP_STR-MAXIMUMCONDITIONAMOUNT sy-vline 
WA_PWCBCCKONP_STR-INCREMENTALSCALE sy-vline 
WA_PWCBCCKONP_STR-PRICINGSCALELINE sy-vline 
WA_PWCBCCKONP_STR-CONDITIONRELEASESTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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