How can I set a JBOSS data source to an Oracle database use a different schema to the one used for authentication

Question

I have a Java webapp (WAR) that is to be run in JBOSS.

That webapp is to create connections to an Oracle database using a username/password for a user that is given read-only permissions.

The webapp queries tables belonging to a different schema. I do this by qualifying each table name in my SQL queries.

However, I would like to parameterise this in my datasource, since the schema names can be different in different environments.

Is there a way to define a JBOSS data source which logs in as User A for each connection, but uses Schema B for all queries?

Answer 1

一种方法是使用new-connection-sql或check-valid-connection-sql 数据源属性执行ALTER SESSION SET CURRENT_SCHEMA=yourschema ，这将更改每个连接的默认架构。

Answer 2

推荐的方法是在Oracle中为用户A创建同义词，以访问用户B拥有的架构中的表。通过这种方式，您甚至可以授予用户A特定的特权，以选择，更新，插入另一个UserB拥有的表。