Bulk update using hibernate

I need to change from session. It seems to me that you are using Hibernate in a way that it is not suitable. You are supposed to have transaction opened earlier around the whole business service maybe , get your entities, update the entities directly, and let Hibernate take care of the update when txn is committed.

By doing so, with proper batch size setting, Hibernate will be aware that multiple entities of same type are updated, and make use of JDBC batch operation to update multiple records in DB, for which it reduce number of round trip. Add a comment. Active Oldest Votes. Vlad Mihalcea Vlad Mihalcea k 55 55 gold badges silver badges bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. But, as best as I can tell Hibernate makes using it impossible. If you don't want to bypass Hibernate and execute the SQL directly via JDBC, your only option is to find other ways to speed your overall import process e.

Could you add the version for the stateless method? Community Bot 1 1 1 silver badge. Tom Anderson Tom Anderson High-throughput data export If you only want to import data without doing any processing or transformation, then a tool like PostgreSQL COPY is the fastest way o import data. Vlad Mihalcea Vlad Mihalcea k 55 55 gold badges silver badges bronze badges.

Gabriel Gabriel 39 4 4 bronze badges. The "extra" select is to generate the unique identifier for your data. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta.

Posted on November 26, by vladmihalcea. In this article, we are going to see how we can adjust a bulk update statement so that it takes optimistic locking into consideration. Bulk update optimistic locking with JPA and Hibernate. For this reason, the status attribute is mapped by the PostStatus Enum type. For more details about the best way to map an Enum type when using JPA and Hibernate, check out this article.

If you wonder why the version property is mapped to a short Java primitive type, instead of int or long , then this article will explain to you why short is most often a much better alternative. Notice that the Java setter methods return the current Post Object reference, therefore allowing us to build the Post entity instance the Fluent-style API. For more detail about this topic, check out this article. Find Article Search. Video Course. Hypersistence Optimizer.

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