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Definition of metadata Get the definition of the database in jdbc, for example: database, table, column definition information.Metadata is used. It can be used in jdbc: database metadata, parameter metadata, result set metadata. (Metadata Definition Related api,..MetaData) Two: Get the DataBaseMetaData object DatabaseMetaData ...

1. overview This article explains how to use Maven to build Spring Security applications. Specific use cases using Spring Security dependencies will be discussed. The latest version of Spring Security can be found on Maven Central. This is a follow-up to the previous Spring and Maven articles, so for non-secure Sp ...

For reprinting, please indicate the source:http://blog.csdn.net/forezp/article/details/70545038  This article is from Fang Zhipeng's blog The full name of JPA is Java Persistence API.JPA describes the mapping relationship of object-relational tables through JDK 5.0 annotations or XML, and persists the runtime entity objects to the database. ...

Preface Distributed transaction is a problem that must be solved in distributed systems. At present, the final consistency scheme is used mostly.Since Ali opened Fescar at the beginning of this year (renamed Seata in early April), the project has received tremendous attention and is now approaching 8000 Star s. Seata Distributed transaction cha ...

Links to the original text: http://jexp.de/blog/2017/03/5-tips-tricks-for-fast-batched-updates-of-graph-structures-with-neo4j-and-cypher Note: After testing, I modified some of the Cypher statements in the original text to conform to the grammatical rules. When writing large amounts of data to a graphical databa ...

Brief: The eighth day was recorded today (only eight days were written).Sometimes I see more, sometimes I see less, and then I save a few days to write together.Today, I wrote this plugin for an afternoon yesterday. I went back after work. I ended it today and added a process diagram to help understand the following principles.I have been readi ...