Colleague feedback a question: The time of Mybatis insertion into the database was yesterday, is it because there is a problem in generating the code...
When we started to focus on overall database performance optimization, we needed a set of MySQL query analysis tools. Especially in medium to large projects,...
Recently, an e-commerce user due to rapid business development, the rapid growth of traffic, resulting in database capacity and performance bottlenecks. To reduce database size...
REPEATABLE READ is InnoDB's default isolation level. MySQL supports it as follows: A consistent read within a transaction is a snapshot of the first read...
This article focuses only on the following two SQL tests. Take a look at the following table structure, not too complex Settings. Smart everyone will...
As a programmer, not to the time, date, do some comparison, the processing of transformation, and so on, and according to certain time conditions on...
SQL > create index (s); The following uses the mysql database. The results may surprise you. Let's first prepare the runtime environment and then verify...
This is my 26th day of the November Update Challenge. For details, see: The Last Update Challenge 2021. Database Administrator, abbreviated as DBA. baidu
Physical design is to design the storage structure of the logical model according to the characteristics of the selected relational database. It involves the following...
MySQL primary/Secondary replication and Read/write Separation Description In a production environment, if the MySQL database is read and written on the same database server, security,...
Ifeng.com (A company listed on the New York Stock Exchange, code: FENG) is a leading global cross-platform network new media companies, comprehensive portal integration, phoenix...
If you can, you can't. Because the division of database and table leads to complex business logic and complex code writing. Decoupling requires the separation...
[REPEATABLE READ] Isolation level solves the problem of unrepeatable READ. Multiple reads in a transaction will not have different results, ensuring REPEATABLE READ. Transaction 1...
With the continuous expansion of business scale, it is necessary to choose appropriate solutions to cope with the increase of data scale, to cope with...
This article just records the verification process, the source code is more complex, time is limited did not read carefully. Please forgive me if it...
To understand what database transactions are, you need to understand why a database needs transaction management in the first place. The simplest example of A...
In this project, using the org. Springframework. JDBC. Core. The JdbcTemplate class service as the database link. The jdbctemplate. batchUpdate method is called for batch...