Disadvantages of Hibernate

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• Slower than JDBC: Hibernate is slower than pure JDBC as it generates lot of SQL statements in runtime.

• Lots of API to learn: A lot of effort is required to learn Hibernate. So, not very easy to learn hibernate easily.

• Not suitable for Batch processing: It advisable to use pure JDBC for batch processing ,which takes less time for processing than hibernate.

• Debugging: Sometimes debugging and performance tuning becomes difficult.

• Not suitable for Small projects : For small projects having few tables it is useless to work with hibernate.

• Does not allow multiple inserts : Hibernate does not allow some type of queries which are supported by JDBC.

  For example: It does not allow to insert multiple objects (persistent data) to same table using single query.

  Developer has to write separate query to insert each object into database.

• Generates complex quires with many joins : For complex data, mapping from Object-to-tables and vise versa reduces performance and increases time of conversion.

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