JDBC Connection: AnOverview Under the Guidance Of: Ms: T. Anitha DONE BY: B. Rajesh 20J41A0567 4 TH YEAR CSE -B
CONTENTS OF JDBC Establidhing jdbc connection Connection URL and DRIBER Connection properties Handling connection exception Closing jdbc connection Conclusion of jdbc
Establishing jdbc connection Step 1: Load the Driver Load the appropriate jdbc driver for the target database usingclass.forName ()method. Step 2: create the connection Use the DriveManager.getConnection ()method to edtablish a connection to the database by providing the connection URL,username and password Step 3: Interact with database Execute SQL statements and manipulate data using the connection object and associated class like statements,preparedstatements and resultset
Connection url and driver Connection URL the connection URL is a string that specifies the distance location,protocals and other connection detauls . is typically fallows standardized format jdbc:databasetype :// host:port /database
Jdbc driver The jdbc driver is a software component that implements the JDBC API and provides mecessary functionality to connect and interact with aspecific database Management
Driver registration The JDBC driver must be registred with driverManager before a connection can be established this is typivally done using the class.forName ()method
Connection properties USERNAME AND PASSWORD Provide valid credential to authenticate and authorize the connection to the databse DATABASE SPECIFIC PROPEROTOES Additional properities may be requied,such as transction isolation level orautocommit settings or other database specific configures CONNECTION PENDINg Utilize connection prndimg to manage and reuse database connection, improving performance and scalability
Handling connection exceptions SQL EXCEPTION Handle SQL exceptions that may occur during the connection process such as invalid credentials,network issues,or data specific errors CLASS NOTFOUND EXCEPTION Catch ClassNotFound Exce [ tion when the JDBC driver class cannot be found,usually due to a missing or incorrect driver dependency GRACEFUL ERROR HANDLING Implement robust error handlimg to provide meaningfull feedback to users and log relevant information for troubleshooting
Closing jdbc connection Connection Establishment Create a new connection using the DriverManager.getconnection ()method CONNECTION USAGE Using the connection object toexcute SQL statements and manipulate data CONNECTION CLOUSURE Always close the connection using the connection.close () method to release resouces and maintain database connection pool integrity
Conclusion of jdbc Cross-platform compatibility Scalability Security Transaction management Data access