Comments on: Select a blob across a database link, without getting ORA-22992

By: Anton Scheffer

Anton Scheffer — Mon, 05 Nov 2012 11:51:38 +0000

@Isaac chocron:
I don’t believe that your query is working for small clobs, and that inserting a large clob in your remote table causes an ORA-00942 in your query.

By: Isaac chocron

Isaac chocron — Sun, 04 Nov 2012 09:16:07 +0000

I tested it on our 11R2 (64bits) with a object type based table that contain CLOB.
When the length of the remote CLOB is more of 4000 characters, I received the next oracle error:

1 select message#, (select message from dual) txt from message_from_machine@copy_values
2* where message#= 2557073
SQL> /
ERROR:
ORA-00942: table or view does not exist

By: Marco Gralike

Marco Gralike — Mon, 02 Jul 2012 20:32:20 +0000

Also be aware of Tom Kyte’s follow up…(regarding “bug or feature”)

“Select without select into … July 2, 2012 – 9am Central time zone” on http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:696224943687

By: Marco Gralike

Marco Gralike — Mon, 02 Jul 2012 14:32:27 +0000

Follow up on Anton’s post regarding XMLTYPE (CLOB/Basicfile/Securefile) handling:

http://www.liberidu.com/blog/2012/07/02/xmltype-datatype-and-ora-22992