Introduction In this article, we are going to see how MySQL rewriteBatchedStatements works when using JDBC, JPA, or Hibernate. I first researched this MySQL configuration property when I was writing the batching chapter of my High-Performance Java Persistence book, and, back then, I discovered that this setting allows batching plain Statement by rewriting the SQL string that is sent to the database. However, the MySQL 6 Connector/J documentation mentioned that: for prepared statements, server-side prepared statements can not currently take advantage of this rewrite option So, for a long time, I wrongly... Read More

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Introduction In this article, we are going to see how we can enable the MySQL JDBC Driver Statement Caching mechanism, which, unfortunately, is not enabled by default. No matter what data access framework you are using, you still need to configure the JDBC Driver if you want to get the most out of the MySQL database engine. MySQL JDBC client-side PreparedStatement As I explained in this article, by default, the MySQL JDBC Driver emulates prepared statements. So, no matter if you are executing a plain Statement or a PreparedStatement, the SQL statement... Read More

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Introduction Ever wanted to connect to a relational database using Java and didn’t know which JDBC Driver Maven dependency to use? If so, this article is surely going to help you from now on. Oracle Since September 2019, the Oracle JDBC Driver is available on Maven Central. For JDK 10 and 11, use the following Maven dependency: For JDK 8, use the ojdbc8 artifact instead: For more details about the proper version to use, check out the following Maven Central link. MySQL The MySQL Driver is available on Maven Central, so just... Read More

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This is exciting news: MySQL 8.0 is officially GA!

This time around we do not only offer you a new MySQL Server full of exciting new features, but also a brand new toolset that let you make the most out of MySQL, including the now GA Java database driver, MySQL Connector/J 8.0.11!

This story is about Connector/J but before even I get started I must say a few words about the new features that conducted the development of this new driver. If you prefer, you can jump directly to the Connector/J 8.0 topic below.

What’s new in MySQL Server 8.0? There’s a new Client/Server communication protocol in MySQL: the X Protocol

The X Protocol introduced in MySQL 8.0 series is the backbone for the document-oriented paradigm in the MySQL ecosystem. The new X Protocol and the old MySQL Client/Server Protocol are both available …

Introduction Ever wanted to connect to a relational database using Java and didn’t know the URL connection string? Then, this article is surely going to help you from now on. Oracle The JDBC connection properties look as follows: JDBC Driver oracle.jdbc.OracleDriver JDBC Url jdbc:oracle:thin:@localhost:1521/orclpdb1 Hibernate Dialect org.hibernate.dialect.Oracle12cDialect And, if you want to connect using a … Continue reading JDBC Driver Connection URL strings →

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Some databases (in particular MySQL and T-SQL databases like SQL Server and Sybase) support a very nice feature: They allow for running a "batch" of statements in a single statement. For instance, in SQL Server, you can do something like this: -- Statement #1 DECLARE @table AS TABLE (id INT); -- Statement #2 SELECT * … Continue reading How to Execute SQL Batches With JDBC and jOOQ →

I’m pleased to announce the newest MySQL Connector/J 5.1 Maintenance Release.

As usual, MySQL Connector/J 5.1 can be downloaded from the official distribution channels MySQL Downloads and The Central Repository. The commercially licensed version is available for download at My Oracle Support.

Please don’t forget to consult the CHANGES file in the download archive and/or the release notes page to know what is new and if there are any changes that might affect your applications.

MySQL Connector/J 5.1.40 is the official JDBC driver for MySQL …

We are pleased to announce the next development release of MySQL Connector/J 6.0 which supports both JDBC 4.2 API and the new X DevAPI.

MySQL Connector/J 6.0.4 can be downloaded from the official distribution channels MySQL Downloads (see the “Development Releases” tab) and The Central repository. MySQL Connector/J source is also available on GitHub.

As always, we recommend that you check the CHANGES file in the download archive and/or the release notes to be aware of …

I’m pleased to announce that MySQL Connector/J 5.1.39 Maintenance Release is now generally available.

MySQL Connector/J can be downloaded from the official distribution channels MySQL Downloads and The Central Repository. The commercially licensed version is available for download at My Oracle Support.

As always, we recommend that you check the CHANGES file in the download archive and/or the release notes page to know what is new and if there are any changes that might affect your applications.

With MySQL Connector/J 5.1.39 you get the continuously …

I’m pleased to announce that MySQL Connector/J 5.1.38 Maintenance Release is now generally available.

MySQL Connector/J can be downloaded from the official distribution channels MySQL Downloads and The Central repository. The commercially licensed version is available for download at My Oracle Support.

As always, we recommend that you check the CHANGES file in the download archive and/or the release notes to be aware of changes in behavior that might affect your application.

MySQL Connector/J 5.1.38, although released shortly after its predecessor, …