The JavaDB Environments : Java DB Derby « Database « Java Tutorial

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Java Tutorial » Database » Java DB Derby

20. 37. 3. The JavaDB Environments

Embedded: Allows only a single application to access a database at one time.

In the embedded environment, no network access occurs.

When you load a JDBC driver from a Java program, JavaDB automatically starts in the embedded environment.

Client/server: Allows multiple applications to connect to JavaDB over the network.

To start JavaDB in the client/server environment, you need to use the server command line tool of JavaDB.

20. 37. Java DB Derby
	20. 37. 1.	New to Java 6 is a lightweight database called Derby.
	20. 37. 2.	The JavaDB Directory Structure
	20. 37. 3.	The JavaDB Environments
	20. 37. 4.	JavaDB Drivers
	20. 37. 5.	JavaDB URLs
	20. 37. 6.	JavaDB Tools
	20. 37. 7.	You can use the server tool to start JavaDB in a network client environment.
	20. 37. 8.	Ping JavaDB.
	20. 37. 9.	To view run time information for JavaDB, you can use the following command:
	20. 37. 10.	To stop JavaDB, you can use the following command:
	20. 37. 11.	Using the ij Tool
	20. 37. 12.	You can use the connect command of ij to establish a connection with a database
	20. 37. 13.	Viewing and Switching Connections
	20. 37. 14.	Working with Tables
	20. 37. 15.	To view the structure of the Employee table
	20. 37. 16.	Using the sysinfo Tool
	20. 37. 17.	Connect to Java DB (Derby) with org.apache.derby.jdbc.EmbeddedDriver
	20. 37. 18.	Connect to Derby database
	20. 37. 19.	The SQL script for creating the Employee Table

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