Re: Inserting binary data to an column

"DA Morgan" <damorgan_at_psoug.org> schrieb im Newsbeitrag news:1194470031.8469_at_bubbleator.drizzle.com...
> Micha wrote:
>>> http://www.psoug.org/reference/convert_func.html#chtr
>>> http://www.psoug.org/reference/dbms_xdbutil_int.html#xinh
>>> http://www.psoug.org/reference/convert_func.html#crth
>>> http://www.psoug.org/reference/utl_raw.html#urctr
>>> http://www.psoug.org/reference/builtin_functions.html
>>> http://www.psoug.org/reference/dbms_reputil.html#rurv
>>> --
>>> Daniel A. Morgan
>>> University of Washington
>>> damorgan_at_x.washington.edu (replace x with u to respond)
>>> Puget Sound Oracle Users Group
>>> www.psoug.org
>>
>> Thnx o lot, this will help a little bit.
>> But im not able to bring this in an correct way^^.
>> Lets make an example:
>> 1.in a table (table_a) exists a column (col_a) of type anydata
>> 2.the data in anydata is an object (lets make a simple object (obj_a)
>> with 2 itmes 1st_name (of varchar2) and 2nd (phonenumber (of number))
>> 3. in the destination db is obj_a already defined
>>
>> if i understand it right, i can get the raw presentation of col_a (with
>> the obj_a) with utl_raw.cast_to_raw.
>>
>> Now i want to create an INSERT statement that should the following:
>> 1. insert the raw data in col_b from table_b (will have the same
>> definition as table_a and col_a, but will be in another db)
>> 2. the data in col_b should not be the raw data. it must represent the
>> original obj_a as in table_a.
>>
>> So there must be a "recast"? or anything that the destination db
>> recognize the raw data as the obj_a.
>>
>> My problem is, that i will realize this independent from the types in the
>> anydata field.
>> Surely, i can step through the anydata field and findout the type and
>> type the cast and recast (eg utl_raw.cast_to_varchar2 and
>> utl_raw.cast_to_raw.
>>
>>
>> But i will find a way to transmitt an binary representation of the data,
>> that will later (in the destination db) recognize as the original data.
>>
>> How can i do this?
>>
>> Thnx for ur help
>>
>> Micha
>
> Let me see if I get this correctly. You want to use the anydata
> data type to store a user defined data type? Why?
>
> Take what you want to store, binary, hex, octal, who cares and
> create a UDT like this:
>
> TYPE my_udt
> what_i_am_storing BLOB
> what_i_want_it_to_be VARCHAR2
>
> And then just reconstitute it whenever you want where-ever you want.
> --
> Daniel A. Morgan
> University of Washington
> damorgan_at_x.washington.edu (replace x with u to respond)
> Puget Sound Oracle Users Group
> www.psoug.org

But then must be the column you want to store the my_udt of typ my_udt. I havnt choose it so, but it ist so. there is an anydata typed clolumn and the types therein can be different from dataset to dataset. Dont matter if its normal varchar, number or even user defined types. I must find a easily way to export and import the data as i have told.

Micha Received on Thu Nov 08 2007 - 10:52:45 CST