Oracle started auto-updating Windows 32-bit and OS X, Java Runtime Environment (JRE) users from JRE 7 to JRE 8 in January 20, 2015.
The Java auto-update mechanism is designed to keep Java users up-to-date with the latest security fixes.
Java Update is a feature that keeps your Windows computer up-to-date with the latest Java releases.
When you have auto update enabled, your system periodically checks for new versions of Java.
OS X users can only have one JRE available through web browsers so OS X users can not have more than one JRE available through the web browser and will only only have JRE 8 available through the web browser after the upgrade.
Unless you have a support contract with Oracle or a license for Java SE Advanced products you will not be able to get security updates for JRE 7 from Oracle after April 2015 and it is not advisable to keep older versions of Java on your system.
During the automatic update from JRE 7 to JRE 8, if a user only has one version of Java 7 the auto-update process will replace that JRE 7 with the latest version of JRE 8 leaving only JRE 8 in the system.
OS X users can only have one JRE available through web browsers so OS X users will only have JRE 8 available through the web browser after the upgrade On Windows, the auto-update process updates only the latest JRE on your system.
To update your computer's current version of Java, you must install the latest version of Java using the Java Control Panel.
Table 4-1 summarizes some advantages and disadvantages to consider when selecting your Oracle XML DB storage option.
functions use the built-in C parser and processor to parse XML data, validate it, and apply XPath expressions on it.
instances contain hidden columns that store this extra information that does not quite fit in the SQL object model.
This information can be accessed through APIs in SQL or Java, using member functions, such as storage from structured storage to LOB, or vice versa, is possible using database IMPORT and EXPORT. You can then change XML storage options when tuning your application, since each storage option has its own benefits.