statement 和 prepared statement?

Statement每次执行sql语句,数据库都要执行sql语句的编译. 最好用于仅执行一次查询并返回结果的情形,效率高于PreparedStatement.

Prepared statements offer better performance, as they are pre-compiled. Use when you plan to use the SQL statements many times.

Prepared statements are more secure because they use bind variables, which can prevent SQL injection attack.

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