How Primary Key Is Created By Using Hibernate?

1.	How Primary Key Is Created By Using Hibernate?
Answer» Database primary key is specified in the configuration FILE hbm.xml. GENERATOR can also be used to SPECIFY how primary key is being created in the database. In the below example, DEPTID acts as primary key: [xml] <id name=”deptId” type=”STRING” > <column name=”columnId” length=”30″/> <generator/> </id> [/xml] Database primary key is specified in the configuration file hbm.xml. Generator can also be used to specify how primary key is being created in the database. In the below example, deptId acts as primary key: [xml] <id name=”deptId” type=”string” > <column name=”columnId” length=”30″/> <generator/> </id> [/xml]

Answer»

Database primary key is specified in the configuration FILE hbm.xml. GENERATOR can also be used to SPECIFY how primary key is being created in the database.
In the below example, DEPTID acts as primary key:
[xml]
<id name=”deptId” type=”STRING” >
<column name=”columnId” length=”30″/>
<generator/>
</id>
[/xml]

Database primary key is specified in the configuration file hbm.xml. Generator can also be used to specify how primary key is being created in the database.
In the below example, deptId acts as primary key:
[xml]
<id name=”deptId” type=”string” >
<column name=”columnId” length=”30″/>
<generator/>
</id>
[/xml]

Discussion

No Comment Found

Related InterviewSolutions

What Is Meant By A Named Sql Query In Hibernate And How It’s Used?
What’s The Difference Between Load() And Get() Method In Hibernate?
What’s The Use Of Version Property In Hibernate?
What Is Attribute Oriented Programming?
What’s The Use Of Session.lock() In Hibernate?
Does Hibernate Support Polymorphism?
What The Three Inheritance Models Are Of Hibernate?
How Can We Map The Classes As Immutable?
What’s General Hibernate Flow Using Rdbms?
What Is Light Object Mapping?