Can you view LOB Locator?

Hi there,

This is a general question: I have a table with a BLOB column defined on it. There are records in this table with the BLOB column populated. I have a procedure which will update this BLOB column; it takes an IN parameter that is also of BLOB type. If I do a simple:

UPDATE blob_tbl
 SET   blob_column = IN_blob_value;
COMMIT;

Will this create a new LOB Locator for the UPDATED value in that BLOB column, or will it update the existing BLOB value with the content from IN_blob_value and retain the same LOB locator value?