Software Code Areas (105)

Software Code Areas (105)
Software code areas are portions of memory used to store code that is being run or can
be run. Oracle code is stored in a software area that is typically at a different location
from users’ programs—a more exclusive or protected location.
Software areas are usually static in size, changing only when software is updated or
reinstalled. The required size of these areas varies by operating system.
Software areas are read only and can be installed shared or nonshared. When possible,
Oracle code is shared so that all Oracle users can access it without having multiple
copies in memory. This results in a saving of real main memory and improves overall
performance.
User programs can be shared or nonshared. Some Oracle tools and utilities (such as
Oracle Forms and SQL*Plus) can be installed shared, but some cannot. Multiple
instances of Oracle can use the same Oracle code area with different databases if
running on the same computer.

軟體程式碼區域
1. 用來存放將要或者能執行的程式碼
2. 大小通常都是靜態的 , 在軟體給更新或者重灌的時候有所改變
3. 只讀的 , 在安裝的時候可共享或者不共享, 使用者程式有些可共享 , 也可不共享
4. 在相同的機器上 , 不同的資料庫之間, Oracle可供使用相同的Oracle程式碼

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