题目内容

假定已经获得一个数据库连接,使用变量conn来表示。下列语句中能够正确获得结果集的有1。(选择两项) A.Statement stmt = conn.createStatement（）2; ResultSet rs = stmt.executeQuery(“SELECT * FROM STUDENT”); B.Statement stmt = conn.createStatement(“SELECT * FROM STUDENT”); ResultSet rs = stmt.executeQuery（）3; C.PreparedStatement stmt = conn.prepareStatement（）4; ResultSet rs = stmt.executeQuery(“SELECT * FROM STUDENT”); D.PreparedStatement stmt = conn.prepareStatement(“SELECT * FROM STUDENT”); ResultSet rs = stmt.executeQuery（）5;

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