mybatis和mysql差异

回答: Mybatis和MySQL之间存在一些差异。首先，当将服务从部署MySQL的服务器迁移到部署Oracle的服务器时，需要修改SQL语句以符合Oracle的语法要求。特别是在Mybatis中，模糊查询的SQL语句在MySQL和Oracle之间也有差异。在配置数据源时，MySQL需要进行心跳包的配置，而Oracle则不需要（需要验证）。另外，当适配Oracle数据库时，使用Mybatis时可能会出现"Error setting null parameter"的错误。这个错误通常是由于参数中出现了null值，并且没有指定jdbcType类型的参数引起的。因此，在迁移Mybatis应用程序时，需要注意这些差异并进行相应的修改。\[1\]\[2\]\[3\]
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