In most cases, the network connects to the database using JDBC technology. JDBC technology is the javaapi primarily used to access databases and execute SQL instructions. JDBC technology can provide a standard application program interface for creating database applications. When developing a web application system, JDBC has completed four major functions. The second is to send an SQL command to the database, the third is to handle the database results, and the fourth is to close the database connection. System software development, database connection JDBC coding, driver loading, and resource release are the same. You can encapsulate the same coding and make it easier to call and display<br>
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