我是JPA的新手,我在尝试保留交易数据时遇到了上述错误.
这是我的实体:
@Entity
@Table(name = "transaction1")
@NamedQueries({
@NamedQuery(name = "Transaction1.findAll", query = "SELECT t FROM Transaction1 t"),
@NamedQuery(name = "Transaction1.findByTransactionID", query = "SELECT t FROM Transaction1 t WHERE t.transactionID = :transactionID"),
@NamedQuery(name = "Transaction1.findByAmount", query = "SELECT t FROM Transaction1 t WHERE t.amount = :amount"),
@NamedQuery(name = "Transaction1.findByFromAccNo", query = "SELECT t FROM Transaction1 t WHERE t.fromAccNo = :fromAccNo"),
@NamedQuery(name = "Transaction1.findByFromSortCodeNo", query = "SELECT t FROM Transaction1 t WHERE t.fromSortCodeNo = :fromSortCodeNo"),
@NamedQuery(name = "Transaction1.findByName", query = "SELECT t …