Thin & OCI Drivers

Oracle provides two main types of drivers.

The OCI driver.

The OCI (type 2) driver consists of java wrappers to the low-level Oracle Call Interface (OCI) libraries used by utilities like SQL*Plus to access the database server. The OCI driver offers potentially better performance that the thin driver. It however requires the OCI libraries to be installed on the local machine.

The "thin" driver.

Also referred to as type 4 driver, the thin driver is a pure Java implementation of Oracle's networking protocol (Net8). Being self-contained, it may be used on any machine with--or without Oracle installed--or even distributed with application classes in an applet.

Comments

Post a Comment

Popular posts from this blog

Arrays.sort() and Collections.sort() NullPointerException

While sorting an array by using Arrays.sort()  or using Collections.sort() for sorting a list you can encounter a NPE (NullPointerException) . You might be thinking what went wrong ? So one of element in the array which have been  passed for sorting contains the null element. Similar with the list case also .So check for a null entry in your array or list before passing to these methods as parameter. Example 1 : String[] strarr={"abc", "def" , null}; Arrays.sort(strarr); Output 1: -------- Exception in thread "main" java.lang.NullPointerException at java.lang.String.compareTo(String.java:1167) at java.lang.String.compareTo(String.java:92) at java.util.Arrays.mergeSort(Arrays.java:1144) at java.util.Arrays.sort(Arrays.java:1079) at Test.main(Test.java:7) Example 2: List strlist=new ArrayList (); strlist.add("abc"); strlist.add("def"); strlist.add(null); Collections.sort(strlist); Output 2: ---------- ...
Read more

Project facet Java 6.0 is not supported by target runtime JBoss

This problem will come due to a mismatch over the JDK version defined in the Project Facet for that particular project and the version ,the runtime server is having. This thing worked for me  . I am having Eclipse Helios and JDK 1.5 installed .Right click on the project in Eclipse ,click the properties menu, click the Project Facets.After clicking you will see in right side some listing will come and among them one entry will be for java.So click on the java property and you will be see a drop-down box .Change the version accordingly.I have changed it to 1.5 and it worked for me. Clean the project. Hope the solution works for you.....
Read more
WHY JAVA DOES NOT HAVE POINTERS ................................................................................................................. Well, it's debatable whether Java does or doesn't support pointers.Some would say that everything (well, every reference type) in Java is a pointer -- hence, the ever-familiar NullPointerException. But certainly, these reference types do not give one the sort of direct interaction with memory that we're familiar with from pointers in. Instead, all objects are handled by references, not to be confused with pointers or C++ references. The difference is that Java references do not refer directly to the memory location , but rather contain the pointer to the actual memory location, which the programmer cannot get direct access to. It is also true that pointers are dangerous and lead to memory leaks, memory corruption, invalid memory access, e.g. from uninitialized and improperly initialized variables, indexing out of bounds, a...
Read more