java - 这个 preparedStatement 我做错了什么？

Question

private Connection conn = DriverManager.getConnection(URL, info);
try {
String sql = "INSERT INTO \"STUD1582251\".\"ACCOUNTS\" VALUES USERNAME=?, PASSWORD=?, PORTFOLIONAME=?";
    PreparedStatement stm = conn.prepareStatement(sql);
    stm.setString(1, user.getUsername());
    stm.setString(2, user.getPassword());
    stm.setString(3, user.getPortfolioName());
    System.out.println(sql);
    stm.executeUpdate();
} catch (SQLException e) {
    e.printStackTrace();
}

异常

SELECT username FROM "STUD1582251"."ACCOUNTS" WHERE username=? INSERT INTO "STUD1582251"."ACCOUNTS" VALUES USERNAME=?, PASSWORD=?, PORTFOLIONAME=? java.sql.SQLSyntaxErrorException: ORA-00933: SQL command not properly ended

Answer 1

INSERT SQL 语句必须是:

 String sql = "INSERT INTO \"STUD1582251\".\"ACCOUNTS\" (USERNAME,PASSWORD,PORTFOLIONAME) VALUES (?,?,?)";

PS:如果 标识符 是保留 词，请将 "(双引号)括起来。