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本内容遵循CC 4.0 BY-SA版权协议 本文介绍了Java中使用Spring Boot和MyBatis框架时，Mapper.xml对SQL语句的多种用法，包括实体类变量与数据库对应、插入数据id映射、模糊查询、多嵌套查询等，还涉及Oracle数据类型、时间格式、标签属性、SQL解析、数据库锁表问题及Mysql ...

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This is a senior Java seat on a live product, not a greenfield build. The system is already in production. New work has to fit what is there, and a change that looks fine in isolation can break ...