我正在使用yaml,但我猜它几乎与xml或json相同。我发现你可以使用addForeignKeyConstraint,但我想在创建表时添加约束,而不是改变现有的表。我该怎么办?我可以这样做吗?
- changeSet:
id: create_questions
author: Author
changes:
- createTable:
tableName: questions
columns:
- column:
name: id
type: int
autoIncrement: true
constraints:
primaryKey: true
nullable: false
- column:
name: user_id
type: int
constraints:
foreignKey:
referencedColumnNames: id
referencedTableName: users
nullable: false
- column:
name: question
type: varchar(255)
constraints:
nullable: false
答案 0 :(得分:16)
我从未使用过YAML格式,但在XML更新日志中你可以这样做:
<column name="user_id" type="int">
<constraints nullable="false"
foreignKeyName="fk_questions_author"
references="users(id)"/>
</column>
等效的YAML应该是这样的:
- column:
name: user_id
type: int
constraints:
nullable: false
foreignKeyName: fk_questions_author
references: users(id)