Oracle 视图 ALL_JAVA_LAYOUTS 官方解释，作用，如何使用详细说明
本站中文解释
ALL_JAVA_LAYOUTS视图允许用户查询他们当前用户空间中被编译的Java布局(Layout)的属性。编译以后的Java布局文件由一个布局类和一个或多个字节码文件组成，字节码文件在各种数据库操作中，如 ‘CREATE SYNONYM’ 或 ‘CREATE PROCEDURE’ 时会被参考。
在使用ALL_JAVA_LAYOUTS视图时，需要查看某个Java布局的几个属性：布局 ID（表示 Java 布局的编号）、布局名称（布局类的完整名）、源语言（表示 Java 布局源代码是用 Java 编写的）以及创建日期（表示 Java 布局何时被编译）。
所以，使用例如SELECT * FROM ALL_JAVA_LAYOUTS这样的查询语句就可以得到各个Java布局的上述属性。语句可以添加条件，如 WHERE layout_name = ‘layout_name’ 来限定查询结果。
官方英文解释
ALL_JAVA_LAYOUTS displays class layout information about the stored Java classes accessible to the current user.
Related Views
DBA_JAVA_LAYOUTSdisplays class layout information about all stored Java classes in the database.USER_JAVA_LAYOUTSdisplays class layout information about the stored Java classes owned by the current user. This view does not display theOWNERcolumn.
| Column | Datatype | NULL | Description |
|---|---|---|---|
|
|
| Owner of the Java class |
|
| Name of the Java class | |
|
| Number of interfaces that this Java class implements | |
|
| Number of inner classes that this Java class contains | |
|
| Number of locally declared fields that this Java class contains | |
|
| Number of locally declared static fields that this Java class contains | |
|
| Number of locally declared methods that this Java class contains | |
|
| Number of locally declared static methods that this Java class contains | |
|
| Number of locally declared native methods that this Java class contains |
See Also:
“DBA_JAVA_LAYOUTS”
“USER_JAVA_LAYOUTS”
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标签：布局,属性,文件,视图,字节