Out of String or a java.sql.Clob, which has best performance when used to manipulate data from database?

Out of String or a java.sql.Clob, which has best performance when used

1.	Out of String or a java.sql.Clob, which has best performance when used to manipulate data from database?
Answer» java.sql.Clob has better performance as it does not extract any data from the database until you explicitly ask it to.