Explain the sequence of steps to connect to the database?
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Answer Posted / william
An alternate, and preferred way, to using the DriverManager class is to use a DataSource object.
1. The data source is registered on the server side, which stores connection information, like: host, port, sid, credentials (optional), driver to use, etc.
2. The application gets a handle on the data source through a JNDI lookup.
3. The DataSource object is a connection factory and you can invoke .getConnection()
One of the reasons it is preferred over the DriverManager is because it is more flexible. The connection information is taken out of the code, therefore if changes need to be made - such as the machine the db resides on, the driver, etc - the application does not have to be recompiled and redeployed.
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