What methods can be used to improve interaction efficiency with a database?

To improve the efficiency of interacting with a database in Java, the following methods can be used:

• Connection Pooling: reusing database connections instead of opening a new one for each request.
• Prepared Statements: allow compiling SQL queries once and executing them multiple times with different parameters, reducing load.
• Caching: using a cache to store frequently requested data to reduce database access.
• Query Optimization: writing efficient SQL queries, using indexes, minimizing selections.
• Using ORM with Lazy Loading: for example, Hibernate allows loading data as needed, rather than all at once.

Example of using a connection pool with HikariCP:

HikariConfig config = new HikariConfig();
config.setJdbcUrl("jdbc:mysql://localhost:3306/mydb");
config.setUsername("user");
config.setPassword("password");

HikariDataSource ds = new HikariDataSource(config);

try (Connection conn = ds.getConnection()) {
    // work with the database
}

These methods help reduce delays and increase throughput when working with a database.