HI I am new to java. We have one java web application which is using ojdbc14.jar for loading oracledriver.We are using jdk1.4 version. Perviously our oracle database version is 8i.Now it is upgraded to 10g. I dont know which version of ojdbc14.jar( which is present in lib directory of jdk folder) we are using.Should we replace the ojdbc14.jar file with the one which we got with Oracle10 g?? .can any one explain me the dependecy of ojdbc14.jar on version of database?