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lines changed Original file line number Diff line number Diff line change 3030* 支持MySQL、Oracle、SQL Server、H2、PostgreSQL等数据库
3131
3232#### 实现的场景 ####
33- 1 . Fetch single entity based on primary key
34- 2 . Fetch list of entities based on condition
35- 3 . Save new single entity and return primary key
36- 4 . Batch insert multiple entities of the same type and return generated keys
37- 5 . Update single existing entity - update all fields of entity at once
38- 6 . Fetch many-to-one relation (Company for Department)
39- 7 . Fetch one-to-many relation (Departments for Company)
40- 8 . Update entities one-to-many relation (Departments in Company) - add two items, update two items and delete one item - all at once
41- 9 . Complex select - construct select where conditions based on some boolean conditions + throw in some JOINs
42- 10 . Execute query using JDBC simple Statement (not PreparedStatement)
43- 11 . Remove single entity based on primary key
33+
34+ 1 . 基于主键获取单个实体
35+ 2 . 根据条件获取实体的列表
36+ 3 . 保存新的单个实体并返回主键
37+ 4 . 批量插入相同类型的多个实体并返回生成的主键列表
38+ 5 . 更新单个现有实体——同时更新所有的实体字段
39+ 6 . 获取多对一关系(部门的所属公司)
40+ 7 . 获取一对多关系(公司的部门)
41+ 8 . 更新实体一对多的关系(公司的部门)-增加两个项目,更新两个项目和删除一个项目-所有只需一句代码/一次操作
42+ 9 . 复杂的选择-构造选择的条件基于一些布尔条件+加入一些连接
43+ 10 . 使用JDBC简单语句(非PreparedStatement)执行查询
44+ 11 . 基于主键移除单个实体
4445
4546## 为什么选择[ Ebean ORM] ( https://ebean-orm.github.io )
4647
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