What exactly is slow? Context is used to search within lobs - probably not relevant here. Try caching the lob. alter table <table> modify lob (lob_name) (cache); On Thu, Feb 12, 2009 at 11:40 AM, Ben Wittmeier <Ben.Wittmeier@xxxxxxxxx> wrote: > > We need to increase the size of a data field beyond its varchar2(4000) > definition because 4000 characters isn't large enough. The field is > currently not indexed. The developer has done some initial testing with > CLOB's but found the performance with the CLOB seemed slow so he's > wondering about an index on the field. Though he also said the slow > performance may be a result of the way he's doing things with the CLOB > (as this is new to him). Are there any options available to index the > CLOB field to improve performance? Oracle mentions using a CONTEXT > index.... > > Does anyone have any thoughts on indexing CLOB fields? > > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. If > you have received this email in error please notify the system manager. This > message contains confidential information and is intended only for the > individual named. If you are not the named addressee you should not > disseminate, distribute or copy this e-mail. > > -- > //www.freelists.org/webpage/oracle-l > > > -- //www.freelists.org/webpage/oracle-l