如何用java语言中如何执行sql查询语句
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使用jdbc技术,首先导入连接数据库的jar包,声明加载的类名,获取连接,进行查询,如:
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger");
Statement sta = conn.createStatement();
ResultSet rs = sta.executeQuery("select * from tablename");
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "scott", "tiger");
Statement sta = conn.createStatement();
ResultSet rs = sta.executeQuery("select * from tablename");
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