[英]How to fetch date from database from one to many relation with hibernate
我有兩張桌子，一張是顧客，另一張是產品。 客戶可能有多個產品。 我需要使用Hibernate檢索特定客戶的所有產品成本。 它返回一組產品對象，但我無法獲得產品成本
對休眠不太了解，但可以嘗試一下
SELECT p.ProductCost FROM Product AS p,Customer AS c
WHERE p.CustomerId=c.CustomerId AND p.CustomerId = :CustomerID
您可以在這里查看一些示例
如何使用一對多關系休眠查詢從數據庫中獲取所有數據
[英]how to fetch all data from database using one to many relation hibernate query
Java休眠一對多“來自數據庫的休眠映射文件和POJO”
[英]java hibernate one to many “Hibernate mapping files and POJOs from database”
Hibernate-使用多對一注釋從多個表中獲取數據
[英]Hibernate - fetch data from multple tables using many to one annotation
如何在休眠狀態下在數據庫中映射一個非規范化的多對多關系（邏輯上）？
[英]How to map a denormalised many to many relation(logically) in database in hibernate?
列表中的休眠搜索查詢與具有多個關系的子表完全匹配
[英]hibernate search query from a list that match exactly from the child table with one-many relation ship
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