Hibernate Vs JDBC is given below:
JDBC
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Hibernate
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With JDBC, developer has to write code to map an object model's data
representation to a relational data model and its corresponding database
schema.
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Hibernate is flexible and powerful ORM solution to map Java classes to
database tables. Hibernate itself takes care of this mapping using XML files
so developer does not need to write code for this.
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With JDBC, the automatic mapping of Java objects with database tables
and vice versa conversion is to be taken care of by the developer manually
with lines of code.
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Hibernate provides transparent persistence and developer does not need
to write code explicitly to map database tables tuples to application objects
during interaction with RDBMS.
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JDBC supports only native Structured Query Language (SQL). Developer has
to find out the efficient way to access database, i.e. to select effective
query from a number of queries to perform same task.
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Hibernate provides a powerful query language Hibernate Query Language
(independent from type of database) that is expressed in a familiar SQL like
syntax and includes full support for polymorphic queries. Hibernate also
supports native SQL statements. It also selects an effective way to perform a
database manipulation task for an application.
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Application using JDBC to handle persistent data (database tables)
having database specific code in large amount. The code written to map table
data to application objects and vice versa is actually to map table fields to
object properties. As table changed or database changed then it’s essential
to change object structure as well as to change code written to map
table-to-object/object-to-table.
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Hibernate provides this mapping itself. The actual mapping between
tables and application objects is done in XML files. If there is change in
Database or in any table then the only need to change XML file properties.
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With JDBC, it is developer’s responsibility to handle JDBC result set
and convert it to Java objects through code to use this persistent data in
application. So with JDBC, mapping between Java objects and database tables
is done manually.
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Hibernate reduces lines of code by maintaining object-table mapping
itself and returns result to application in form of Java objects. It relieves
programmer from manual handling of persistent data, hence reducing the
development time and maintenance cost.
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With JDBC, caching is maintained by hand-coding.
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Hibernate, with Transparent Persistence, cache is set to application
work space. Relational tuples are moved to this cache as a result of query.
It improves performance if client application reads same data many times for
same write. Automatic Transparent Persistence allows the developer to
concentrate more on business logic rather than this application code.
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In JDBC there is no check that always every user has updated data. This
check has to be added by the developer.
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Hibernate enables developer to define version type field to application,
due to this defined field Hibernate updates version field of database table
every time relational tuple is updated in form of Java class object to that
table. So if two users retrieve same tuple and then modify it and one user
save this modified tuple to database, version is automatically updated for
this tuple by Hibernate. When other user tries to save updated tuple to
database then it does not allow saving it because this user does not have
updated data.
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Original Link: http://www.java-samples.com/showtutorial.php?tutorialid=813
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