ABAP Select data from SAP table ICOLLSRSMDR into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICOLLSRSMDR
*  INTO TABLE @DATA(IT_ICOLLSRSMDR2).
*--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_ICOLLSRSMDR INDEX 1 INTO DATA(WA_ICOLLSRSMDR2).


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

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

ENDLOOP.

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

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


*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_ICOLLSRSMDR-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOLLSRSMDR-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_ICOLLSRSMDR_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
RESUBMISSIONUUID 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,
HASACTIVEENTITY TYPE STRING,
DRAFTCREATIONDATETIME TYPE STRING,
DRAFTLASTCHANGEDDATETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICOLLSRSMDR_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_ICOLLSRSMDR_STR-MANDT sy-vline 
WA_ICOLLSRSMDR_STR-DRAFTUUID sy-vline 
WA_ICOLLSRSMDR_STR-RESUBMISSIONUUID sy-vline 
WA_ICOLLSRSMDR_STR-BUSINESSPARTNER sy-vline 
WA_ICOLLSRSMDR_STR-COLLECTIONSEGMENT sy-vline 
WA_ICOLLSRSMDR_STR-RESUBMISSIONDUEDATE sy-vline 
WA_ICOLLSRSMDR_STR-COLLRESUBMISSIONDATETIME sy-vline 
WA_ICOLLSRSMDR_STR-NOCNTCTUNTILRESUBMSNDATEISREQ sy-vline 
WA_ICOLLSRSMDR_STR-RESUBMISSIONREASON sy-vline 
WA_ICOLLSRSMDR_STR-RESUBMISSIONSTATUS sy-vline 
WA_ICOLLSRSMDR_STR-CREATEDBYUSER sy-vline 
WA_ICOLLSRSMDR_STR-CREATIONDATETIME sy-vline 
WA_ICOLLSRSMDR_STR-CHANGEDBY sy-vline 
WA_ICOLLSRSMDR_STR-CHANGEDONDATETIME sy-vline 
WA_ICOLLSRSMDR_STR-OBJECTTYPE sy-vline 
WA_ICOLLSRSMDR_STR-OBJECTKEY sy-vline 
WA_ICOLLSRSMDR_STR-HASACTIVEENTITY sy-vline 
WA_ICOLLSRSMDR_STR-DRAFTCREATIONDATETIME sy-vline 
WA_ICOLLSRSMDR_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.