ABAP Select data from SAP table PDCD2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PDCD2 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 PDCD2. 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 PDCD2 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_PDCD2 TYPE STANDARD TABLE OF PDCD2,
      WA_PDCD2 TYPE PDCD2,
      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: <PDCD2> TYPE PDCD2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PDCD2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PDCD2
  INTO TABLE IT_PDCD2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PDCD2
*  INTO TABLE @DATA(IT_PDCD22).
*--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_PDCD2 INDEX 1 INTO DATA(WA_PDCD22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PDCD2 ASSIGNING <PDCD2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PDCD2>-MANDT = 1.
<PDCD2>-CASEUUID = 1.
<PDCD2>-CASEID = 1.
<PDCD2>-BUSINESSPARTNER = 1.
<PDCD2>-CREDITSEGMENT = 1.

ENDLOOP.

LOOP AT IT_PDCD2 INTO WA_PDCD2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PDCD2-CREDITRISKCLASS, sy-vline,
  WA_PDCD2-CASEPROCESSOR, sy-vline,
  WA_PDCD2-CASERESPONSIBLE, sy-vline,
  WA_PDCD2-CASECREATEDBY, sy-vline,
  WA_PDCD2-CASELASTCHANGEDBY, sy-vline,
  WA_PDCD2-CASECLOSEDBY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PDCD2 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_PDCD2 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_PDCD2 INTO WA_PDCD2.


*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 CASEID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDCD2-CASEID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDCD2-CASEID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PDCD2-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PDCD2-BUSINESSPARTNER.
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_PDCD2_STR, 
MANDT TYPE STRING,
CASEUUID TYPE STRING,
CASEID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CREDITSEGMENT TYPE STRING,
CREDITRISKCLASS TYPE STRING,
CASEPROCESSOR TYPE STRING,
CASERESPONSIBLE TYPE STRING,
CASECREATEDBY TYPE STRING,
CASELASTCHANGEDBY TYPE STRING,
CASECLOSEDBY TYPE STRING,
CASEREASON TYPE STRING,
CASETYPE TYPE STRING,
CASESTATUSPROFILE TYPE STRING,
CASESTATUS TYPE STRING,
CASESYSTEMSTATUS TYPE STRING,
CASEPRIORITY TYPE STRING,
CASEESCALATIONREASON TYPE STRING,
CASECATEGORY TYPE STRING,
CASECREATIONDATE TYPE STRING,
CASELASTCHANGEDATE TYPE STRING,
CASECLOSINGDATE TYPE STRING,
CASEPLANNEDCLOSEDATE TYPE STRING,
TODAYDATE TYPE STRING,
CASEISCLOSED TYPE STRING,
NUMBEROFCREDITDECISIONDOCS TYPE STRING,
PROCESSINGDAYS TYPE STRING,
NMBROFDAYSPLNDCLSDATEEXCEEDED TYPE STRING,
CRDTMGMTBUSINESSPARTNERGROUP TYPE STRING,
CREDITDECISIONOBJECTTYPE TYPE STRING,
CREDITDECISIONSALESDOCUMENT TYPE STRING,
SALESDOCUMENTCREDITSTATUS TYPE STRING,
CREDITDECISIONREQUTCDATETIME TYPE STRING,
CREDITDECISIONFIRSTAPPROVER TYPE STRING,
CREDITDECISIONSECONDAPPROVER TYPE STRING,
CREDITDECISIONFIRSTAPPRVLSTS TYPE STRING,
CREDITDECISIONSECONDAPPRVLSTS TYPE STRING,
CREDITDECISIONCOMPLETEDBYUSER TYPE STRING,
CRDTDCSNAPPRVLPROCISOVERRULED TYPE STRING,
STATICLMTUTILZNCRDTCHKISFAILED TYPE STRING,
MAXDOCAMOUNTCREDITCHKISFAILED TYPE STRING,
DYNLIMITUTILZNCRDTCHKISFAILED TYPE STRING,
MAXDUNNINGLEVELCRDTCHKISFAILED TYPE STRING,
OLDESTOPENITEMCRDTCHKISFAILED TYPE STRING,
DAYSSLSOUTSTDGCRDTCHKISFAILED TYPE STRING,
OTHERCREDITCHECKISFAILED TYPE STRING,
OVERDUEOPENITEMCRDTCHKISFAILED TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
OPENCREDITAMOUNT TYPE STRING,
CHECKEDCREDITRISKAMOUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PDCD2_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_PDCD2_STR-MANDT sy-vline 
WA_PDCD2_STR-CASEUUID sy-vline 
WA_PDCD2_STR-CASEID sy-vline 
WA_PDCD2_STR-BUSINESSPARTNER sy-vline 
WA_PDCD2_STR-CREDITSEGMENT sy-vline 
WA_PDCD2_STR-CREDITRISKCLASS sy-vline 
WA_PDCD2_STR-CASEPROCESSOR sy-vline 
WA_PDCD2_STR-CASERESPONSIBLE sy-vline 
WA_PDCD2_STR-CASECREATEDBY sy-vline 
WA_PDCD2_STR-CASELASTCHANGEDBY sy-vline 
WA_PDCD2_STR-CASECLOSEDBY sy-vline 
WA_PDCD2_STR-CASEREASON sy-vline 
WA_PDCD2_STR-CASETYPE sy-vline 
WA_PDCD2_STR-CASESTATUSPROFILE sy-vline 
WA_PDCD2_STR-CASESTATUS sy-vline 
WA_PDCD2_STR-CASESYSTEMSTATUS sy-vline 
WA_PDCD2_STR-CASEPRIORITY sy-vline 
WA_PDCD2_STR-CASEESCALATIONREASON sy-vline 
WA_PDCD2_STR-CASECATEGORY sy-vline 
WA_PDCD2_STR-CASECREATIONDATE sy-vline 
WA_PDCD2_STR-CASELASTCHANGEDATE sy-vline 
WA_PDCD2_STR-CASECLOSINGDATE sy-vline 
WA_PDCD2_STR-CASEPLANNEDCLOSEDATE sy-vline 
WA_PDCD2_STR-TODAYDATE sy-vline 
WA_PDCD2_STR-CASEISCLOSED sy-vline 
WA_PDCD2_STR-NUMBEROFCREDITDECISIONDOCS sy-vline 
WA_PDCD2_STR-PROCESSINGDAYS sy-vline 
WA_PDCD2_STR-NMBROFDAYSPLNDCLSDATEEXCEEDED sy-vline 
WA_PDCD2_STR-CRDTMGMTBUSINESSPARTNERGROUP sy-vline 
WA_PDCD2_STR-CREDITDECISIONOBJECTTYPE sy-vline 
WA_PDCD2_STR-CREDITDECISIONSALESDOCUMENT sy-vline 
WA_PDCD2_STR-SALESDOCUMENTCREDITSTATUS sy-vline 
WA_PDCD2_STR-CREDITDECISIONREQUTCDATETIME sy-vline 
WA_PDCD2_STR-CREDITDECISIONFIRSTAPPROVER sy-vline 
WA_PDCD2_STR-CREDITDECISIONSECONDAPPROVER sy-vline 
WA_PDCD2_STR-CREDITDECISIONFIRSTAPPRVLSTS sy-vline 
WA_PDCD2_STR-CREDITDECISIONSECONDAPPRVLSTS sy-vline 
WA_PDCD2_STR-CREDITDECISIONCOMPLETEDBYUSER sy-vline 
WA_PDCD2_STR-CRDTDCSNAPPRVLPROCISOVERRULED sy-vline 
WA_PDCD2_STR-STATICLMTUTILZNCRDTCHKISFAILED sy-vline 
WA_PDCD2_STR-MAXDOCAMOUNTCREDITCHKISFAILED sy-vline 
WA_PDCD2_STR-DYNLIMITUTILZNCRDTCHKISFAILED sy-vline 
WA_PDCD2_STR-MAXDUNNINGLEVELCRDTCHKISFAILED sy-vline 
WA_PDCD2_STR-OLDESTOPENITEMCRDTCHKISFAILED sy-vline 
WA_PDCD2_STR-DAYSSLSOUTSTDGCRDTCHKISFAILED sy-vline 
WA_PDCD2_STR-OTHERCREDITCHECKISFAILED sy-vline 
WA_PDCD2_STR-OVERDUEOPENITEMCRDTCHKISFAILED sy-vline 
WA_PDCD2_STR-DISPLAYCURRENCY sy-vline 
WA_PDCD2_STR-OPENCREDITAMOUNT sy-vline 
WA_PDCD2_STR-CHECKEDCREDITRISKAMOUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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