How to enable multi-row inserts with the PostgreSQL reWriteBatchedInserts configuration property

Introduction Vladimir Sitnikov has been working on many optimizations to the PostgreSQL JDBC Driver, and one of these is the reWriteBatchedInserts configuration property which he recently told me about. In this article, you will see how the reWriteBatchedInserts JDBC configuration property works in PostgreSQL, and how it allows you to rewrite INSERT statements into a multi-VALUE INSERT.

PostgreSQL SERIAL column and Hibernate IDENTITY generator

Introduction When using PostgreSQL, it’s tempting to use a SERIAL or BIGSERIAL column type to auto-increment Primary Keys. However, this article will show you that this is not a very good idea when using JPA and Hibernate.

How to optimize the merge operation using update while batching with JPA and Hibernate

Introduction One of my readers has recently asked me about optimizing the merge entity state transition, and, because this is a great question, I decided to turn it into a blog post. In this article, you are going to see a shortcoming of the merge entity state transition and how you can deal with it using Hibernate.

The best way to do batch processing with JPA and Hibernate

Introduction Recently, one of my followers asked me to answer a question on Quora about batch processing, and, since the question was really interesting, I decided to turn it into a blog post. In this article, you are going to find out what batch processing is, why do we use it, and how to use it properly with JPA and Hibernate.

How to find which statement failed in a JDBC Batch Update

Introduction Yesterday, my Danish friend, Flemming Harms, asked my a very interesting question related to when a JDBC batch update fails. Basically, considering we are going to group several DML statements in a batch, we need a way to tell which statement is the cause of the failure. This post is going to answer this question in more detail.

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