Deep understanding of Spring declarative transactions

Problem introduction What are the types of transaction propagation in Spring? Understand the automatic configuration of annotation transactions? Why doesn't the SpringBoot startup class need the @ EnableTransactionManagement annotation? How does declarative transaction work? (to be supplemented) 1 declarative transaction It is inevitable to ...

Posted on Sun, 21 Nov 2021 15:06:04 -0500 by hasek522

Replaceingmergetree: to update Clickhouse data

Absrtact: as an OLAP database, Clickhouse has very limited support for transactions. This paper mainly introduces how to update and delete Clickhouse data through replacing mergetree. This article is shared from Huawei cloud community< How to update data in Clickhouse >, author: bully. As an OLAP database, Clickhouse has very limited supp ...

Posted on Thu, 04 Nov 2021 03:53:52 -0400 by geoffism

Introduction to Spring framework -- Spring transaction

catalogue Chapter 5: Spring transactions 5.1 transaction management in spring 5.1.1 review of affairs 5.1.2 transaction management in spring 5.2 API of spring transaction management 5.2.1 transaction manager 5.2.2 transaction definition interface 5.2.3 timing of spring committing and rolling back transactions 5.2.4 summarizing Spring t ...

Posted on Tue, 02 Nov 2021 16:18:32 -0400 by spags

Spring boot transaction execution whole process analysis

Spring boot transaction execution whole process analysis In the last article Source code analysis of spring boot transaction creation process In, we mainly talked about the process of creating springboot transactions. This time, let's take a look at the specific execution process of transactions. Here, several names are agreed in ad ...

Posted on Sat, 23 Oct 2021 23:17:46 -0400 by spitfire_esquive

Transaction and Transaction Isolation Level

What is a transaction A transaction is a sequence of operations that access a database. A database application system accesses the database through a transaction set. The correct execution of a transaction causes the database to transition from one state to another. Transactions must comply with the ACID principles laid down by ISO/IEC. ACID ...

Posted on Tue, 19 Oct 2021 12:32:49 -0400 by hem.bhatt1787