ABAP Select data from SAP table PCVDOCINFORECD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCVDOCINFORECD
*  INTO TABLE @DATA(IT_PCVDOCINFORECD2).
*--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_PCVDOCINFORECD INDEX 1 INTO DATA(WA_PCVDOCINFORECD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCVDOCINFORECD>-MANDT = 1.
<PCVDOCINFORECD>-DOCUMENTTYPE = 1.
<PCVDOCINFORECD>-DOCUMENTINFORECORD = 1.
<PCVDOCINFORECD>-DOCUMENTVERSION = 1.
<PCVDOCINFORECD>-DOCUMENTPART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCVDOCINFORECD-RESPONSIBLEPERSONNAME, sy-vline,
  WA_PCVDOCINFORECD-INTERNALDOCUMENTSTATUS, sy-vline,
  WA_PCVDOCINFORECD-LABORATORYORDESIGNOFFICE, sy-vline,
  WA_PCVDOCINFORECD-CHANGENUMBER, sy-vline,
  WA_PCVDOCINFORECD-PLANT, sy-vline,
  WA_PCVDOCINFORECD-SUPERIORDOCUMENTINFORECORD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCVDOCINFORECD 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_PCVDOCINFORECD 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_PCVDOCINFORECD INTO WA_PCVDOCINFORECD.


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

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

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

*Conversion exit ALPHA, internal->external for field SOURCEDOCINFORECD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCVDOCINFORECD-SOURCEDOCINFORECD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCVDOCINFORECD-SOURCEDOCINFORECD.
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_PCVDOCINFORECD_STR, 
MANDT TYPE STRING,
DOCUMENTTYPE TYPE STRING,
DOCUMENTINFORECORD TYPE STRING,
DOCUMENTVERSION TYPE STRING,
DOCUMENTPART TYPE STRING,
RESPONSIBLEPERSONNAME TYPE STRING,
INTERNALDOCUMENTSTATUS TYPE STRING,
LABORATORYORDESIGNOFFICE TYPE STRING,
CHANGENUMBER TYPE STRING,
PLANT TYPE STRING,
SUPERIORDOCUMENTINFORECORD TYPE STRING,
SUPERIORDOCUMENTVERSION TYPE STRING,
SUPERIORDOCUMENTPART TYPE STRING,
SUPERIORDOCUMENTTYPE TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
DUEDATE TYPE STRING,
PROCESSINGPRIORITY TYPE STRING,
DOCINFORECDOUTPUTDATE TYPE STRING,
SOURCEDOCINFORECD TYPE STRING,
DOCINFORECDSOURCEDOCPART TYPE STRING,
DOCINFORECDSOURCEDOCVERSION TYPE STRING,
DOCINFORECDCONFIGNMGMTFIXED TYPE STRING,
ISDOCINFORECDSTRUCTURE TYPE STRING,
DOCINFORECDHIERARCHY TYPE STRING,
DOCINFORECDISMARKEDFORDELETION TYPE STRING,
DOCUMENTISCREATEDBYCAD TYPE STRING,
CREATIONDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CHANGEDDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCVDOCINFORECD_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_PCVDOCINFORECD_STR-MANDT sy-vline 
WA_PCVDOCINFORECD_STR-DOCUMENTTYPE sy-vline 
WA_PCVDOCINFORECD_STR-DOCUMENTINFORECORD sy-vline 
WA_PCVDOCINFORECD_STR-DOCUMENTVERSION sy-vline 
WA_PCVDOCINFORECD_STR-DOCUMENTPART sy-vline 
WA_PCVDOCINFORECD_STR-RESPONSIBLEPERSONNAME sy-vline 
WA_PCVDOCINFORECD_STR-INTERNALDOCUMENTSTATUS sy-vline 
WA_PCVDOCINFORECD_STR-LABORATORYORDESIGNOFFICE sy-vline 
WA_PCVDOCINFORECD_STR-CHANGENUMBER sy-vline 
WA_PCVDOCINFORECD_STR-PLANT sy-vline 
WA_PCVDOCINFORECD_STR-SUPERIORDOCUMENTINFORECORD sy-vline 
WA_PCVDOCINFORECD_STR-SUPERIORDOCUMENTVERSION sy-vline 
WA_PCVDOCINFORECD_STR-SUPERIORDOCUMENTPART sy-vline 
WA_PCVDOCINFORECD_STR-SUPERIORDOCUMENTTYPE sy-vline 
WA_PCVDOCINFORECD_STR-AUTHORIZATIONGROUP sy-vline 
WA_PCVDOCINFORECD_STR-DUEDATE sy-vline 
WA_PCVDOCINFORECD_STR-PROCESSINGPRIORITY sy-vline 
WA_PCVDOCINFORECD_STR-DOCINFORECDOUTPUTDATE sy-vline 
WA_PCVDOCINFORECD_STR-SOURCEDOCINFORECD sy-vline 
WA_PCVDOCINFORECD_STR-DOCINFORECDSOURCEDOCPART sy-vline 
WA_PCVDOCINFORECD_STR-DOCINFORECDSOURCEDOCVERSION sy-vline 
WA_PCVDOCINFORECD_STR-DOCINFORECDCONFIGNMGMTFIXED sy-vline 
WA_PCVDOCINFORECD_STR-ISDOCINFORECDSTRUCTURE sy-vline 
WA_PCVDOCINFORECD_STR-DOCINFORECDHIERARCHY sy-vline 
WA_PCVDOCINFORECD_STR-DOCINFORECDISMARKEDFORDELETION sy-vline 
WA_PCVDOCINFORECD_STR-DOCUMENTISCREATEDBYCAD sy-vline 
WA_PCVDOCINFORECD_STR-CREATIONDATETIME sy-vline 
WA_PCVDOCINFORECD_STR-CREATEDBYUSER sy-vline 
WA_PCVDOCINFORECD_STR-CHANGEDDATETIME sy-vline 
WA_PCVDOCINFORECD_STR-LASTCHANGEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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