ABAP Select data from SAP table PCOLLSRSMDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCOLLSRSMDR
*  INTO TABLE @DATA(IT_PCOLLSRSMDR2).
*--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_PCOLLSRSMDR INDEX 1 INTO DATA(WA_PCOLLSRSMDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCOLLSRSMDR>-MANDT = 1.
<PCOLLSRSMDR>-RESUBMISSIONUUID = 1.
<PCOLLSRSMDR>-DRAFTUUID = 1.
<PCOLLSRSMDR>-BUSINESSPARTNER = 1.
<PCOLLSRSMDR>-COLLECTIONSEGMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCOLLSRSMDR-RESUBMISSIONDUEDATE, sy-vline,
  WA_PCOLLSRSMDR-COLLRESUBMISSIONDATETIME, sy-vline,
  WA_PCOLLSRSMDR-NOCNTCTUNTILRESUBMSNDATEISREQ, sy-vline,
  WA_PCOLLSRSMDR-RESUBMISSIONREASON, sy-vline,
  WA_PCOLLSRSMDR-RESUBMISSIONSTATUS, sy-vline,
  WA_PCOLLSRSMDR-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCOLLSRSMDR 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_PCOLLSRSMDR 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_PCOLLSRSMDR INTO WA_PCOLLSRSMDR.


*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 BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCOLLSRSMDR-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCOLLSRSMDR-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_PCOLLSRSMDR_STR, 
MANDT TYPE STRING,
RESUBMISSIONUUID TYPE STRING,
DRAFTUUID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
COLLECTIONSEGMENT TYPE STRING,
RESUBMISSIONDUEDATE TYPE STRING,
COLLRESUBMISSIONDATETIME TYPE STRING,
NOCNTCTUNTILRESUBMSNDATEISREQ TYPE STRING,
RESUBMISSIONREASON TYPE STRING,
RESUBMISSIONSTATUS TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDONDATETIME TYPE STRING,
OBJECTTYPE TYPE STRING,
OBJECTKEY TYPE STRING,
ISACTIVEENTITY TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTCREATIONDATETIME TYPE STRING,
DRAFTLASTCHANGEDDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCOLLSRSMDR_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_PCOLLSRSMDR_STR-MANDT sy-vline 
WA_PCOLLSRSMDR_STR-RESUBMISSIONUUID sy-vline 
WA_PCOLLSRSMDR_STR-DRAFTUUID sy-vline 
WA_PCOLLSRSMDR_STR-BUSINESSPARTNER sy-vline 
WA_PCOLLSRSMDR_STR-COLLECTIONSEGMENT sy-vline 
WA_PCOLLSRSMDR_STR-RESUBMISSIONDUEDATE sy-vline 
WA_PCOLLSRSMDR_STR-COLLRESUBMISSIONDATETIME sy-vline 
WA_PCOLLSRSMDR_STR-NOCNTCTUNTILRESUBMSNDATEISREQ sy-vline 
WA_PCOLLSRSMDR_STR-RESUBMISSIONREASON sy-vline 
WA_PCOLLSRSMDR_STR-RESUBMISSIONSTATUS sy-vline 
WA_PCOLLSRSMDR_STR-CREATEDBYUSER sy-vline 
WA_PCOLLSRSMDR_STR-CREATIONDATETIME sy-vline 
WA_PCOLLSRSMDR_STR-CHANGEDBY sy-vline 
WA_PCOLLSRSMDR_STR-CHANGEDONDATETIME sy-vline 
WA_PCOLLSRSMDR_STR-OBJECTTYPE sy-vline 
WA_PCOLLSRSMDR_STR-OBJECTKEY sy-vline 
WA_PCOLLSRSMDR_STR-ISACTIVEENTITY sy-vline 
WA_PCOLLSRSMDR_STR-HASACTIVEENTITY sy-vline 
WA_PCOLLSRSMDR_STR-DRAFTCREATIONDATETIME sy-vline 
WA_PCOLLSRSMDR_STR-DRAFTLASTCHANGEDDATETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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