What does a JDBC URL represent?

JDBC URL is a string that indicates to the JDBC driver how to connect to a specific database. It contains information about the protocol, subprotocol (driver), host, port, and database-specific parameters.

Example:

// Standard format
jdbc:<subprotocol>:<subname>

// For MySQL
jdbc:mysql://localhost:3306/mydatabase

// For PostgreSQL
jdbc:postgresql://192.168.1.10:5432/mydatabase?ssl=true

Main components:

• jdbc: Mandatory prefix indicating this is a JDBC URL.
• <subprotocol>: Specifies the JDBC driver used, e.g., mysql, postgresql, oracle, h2.
• <subname>: Contains driver-specific information:
  • Database location (host, port).
  • Database name.
  • Additional parameters (e.g., ssl=true).

JDBC URLs are used when establishing a connection to the database, e.g., via DriverManager.getConnection(url, user, password).