5.sync_frm removed:frm is obsolete => data directory 6.Group By 不能指定分组列的 [ASC| DESC],要排序只能用 order by // 与5.0、5.1相关的一些旧属性,不再支持,removed 7.InnoDB不再使用软连接创建数据目录之外的表空间,可以用 variable innodb_directories = ......
Re: What is InnoDB Reading and Writing when It's Idle? 405 Sunny Bains December 15, 2021 02:51PM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and...
What is my innodb_log_file_size goes beyong 2gb . . . Azure Database for MySQL Azure Database for MySQL An Azure managed MySQL database service for app development and deployment. 799 questions Sign in to follow 0 comments No comments Report a concern I have the same...
If it is an equivalence query, then the hash index obviously has an absolute advantage , because only one algorithm is needed to find the corresponding key value; of course, the premise is that the key value is unique. If the key value is not unique, you need to find the location of ...
MySQL keeps the row versions inInformation_Schema: Copy code snippet Copied to Clipboard Error: Could not Copy Copied to Clipboard Error: Could not Copy SQL > SELECT NAME, TOTAL_ROW_VERSIONS FROM INFORMATION_SCHEMA.INNODB_TABLES WHERE NAME LIKE 'test/t1'; ...
Azure Database for MySQL Flexible Server now supports up to 8 TB in a single data file! Azure Database for MySQL now supports single InnoDB data files up to 8 TB in size, enabling users to store larger datasets within a single file. This enhancement reduces the need for data partitioning...
MySQL InnoDB Cluster As in the MySQL Server, deprecated terminology in replication related features was updated, while keeping backwards compatibility wherever necessary. You can read about the general change at theMySQL Terminology Updatesblog post. ...
MySQL 8.4.0 adds support for automatic updates of histograms. When this feature is enabled for a given histogram, it is updated whenever ANALYZE TABLE is run on the table to which it belongs. In addition, automatic recalculation of persistent statistics by InnoDB (see Section 17.8.10.1, “Conf...
By default, GTID is enabled on RDS for MySQL and cannot be disabled because functions such as the primary/standby relationship establishment depend on GTID. If GTID is di
main reason is,i am using vb.net as frontend and Mysql as back end,Mysql Transaction is not working in MyISAM engine type database .when i changed it in to InnoDB,it is working.. No i want to know whether innoDB has any disadvantage ?