报错Unknown system variable 'query"/>
JDBC连接MySQL报错Unknown system variable 'query
报此错误是mysql-connecter-java的版本过低,很显然是数据库驱动程序与数据库版本不对应
我之前用到的是5.1.37,换成8.0.11就可以了
The query cache is deprecated as of MySQL 5.7.20, and is removed in MySQL 8.0. Deprecation includes query_cache_size.
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JDBC连接MySQL报错Unknown system variable 'query
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