I used the following codes to update clob to oracle by using jdbc
after ran above codes, I checked "bbbbbbbbbbbbbbbbbbaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" was stored in the db, why? it should be "bbbbbbbbbbbbbbbbbb", right? As we can see the later string "bbbbbbbbbbbbbbbbbb" just appended. but I want it to be replaced.