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mysql| Comparison | performance MySQL supports the two main table storage format Myisam,innodb, last month when doing a project, first used InnoDB, the result is particularly slow, 1 seconds can only insert 10. Later replaced by the MyISAM format, a

Distributed transactions are transactions that occur between multiple databases, and in Oracle, transactions are handled in a dblink manner, and distributed transactions are much more complex than stand-alone transactions. Most relational databases

· If the top tool for UNIX or Windows Task Manager shows that the CPU usage of your database workload is less than 70%, your workload may be disk bound, you may be generating too many transactions and submissions, or the buffer pool is too small.

Class one or four isolation level The SQL standard defines 4 classes of isolation, including specific rules that define which changes are visible inside and outside the transaction and which are not. The low-level isolation level generally supports