我试图编写一个SQL语句，用给定的新信息更新我的数据库。当我运行该程序时，它给出了一个错误，说它在第01行第401行遇到了“RECURRING”。这是什么意思？我之前使用过这个词添加到数据库中，所以我不明白这个问题是什么。这是代码......
stmt.executeUpdate("UPDATE \"CUSTOMERS\" SET FIRSTNAME = " + "'" + customer.getFirstName() + "'" + ", LASTNAME = " + "'" + customer.getLastName() + "'" + ", EMAIL = " + "'" + customer.getEmail() + "'" + ", PHONE = " + "'" + customer.getPhone() + "'" + ", ADDRESS = " + "'" + customer.getAddress() + "'" + ", GROUPONNUMBER = " + "'" + customer.getGrouponNumber() + "'" + ", NOTES = " + "'" + customer.getNotes() + "'" + ", ONETIME = " + customer.getOneTime() + ", RECURRING = " + customer.getRecurring()+ ", NONRESPONSIVE = " + customer.getNonResponsive() + " WHERE FIRSTNAME = " + "'" + active.getFirstName() + "'" + " AND LASTNAME = " + "'" + active.getLastName() + "'" + " AND EMAIL = " + "'" + active.getEmail() + "'" + "AND PHONE = " + "'" + active.getPhone() + "'" + "AND ADDRESS = " + "'" + active.getAddress() + "'" + "AND GROUPONNUMBER = " + "'" + active.getGrouponNumber() + "'" + "AND NOTES = " + "'" + active.getNotes() + "'" + " AND ONETIME = " + active.getOneTime() + "AND RECURRING = " + active.getRecurring() + "AND GROUPON = " + active.getGroupon() + "AND NONRESPONSIVE = " + active.getNonResponsive());
我没有太多使用SQL，所以我真的不知道我在做什么是为了诚实。