Re: concatenating clob with string in SELECT

mikeg13_at_gmail.com wrote:
> I have dynamically created an INSERT statement that is populating a
> table with a CLOB field. The value being inserted into the CLOB field
> is generated by concatenating a bunch of strings. In some case, it
> exceeds the 4K limit for string concatenation. The concatenation will
> have the 4G limit of a CLOB, if one of the fields being concatenated is
> of a clob data type. How can I create a clob field to be used in the
> concatenation in the SELECT statement?
>
> For example,
>
> insert into table1 (field1, clobfield) SELECT field1, <4k
> string>||<4kstring> from table2;
>
> I would like to put a clob in the concatenation string to make this
> work. Something like ...
>
> insert into table1 (field1, clobfield) SELECT field1, <4k
> string>||<4kstring>||<clob literal> from table2;

There is no 4K limit for string concatenation.

A VARCHAR2 variable is 32K and there is nothing that stops you from concatenating multiple 32K VARCHAR2s into a CLOB.

-- 
[Quoted] 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