副标题：以“小明查员工信息”的故事为主线，结合MySQL原理剖析与大量代码实例，手把手还原一条SQL的完整生命周期 引子：小明的查询任务与数据库的幕后世界（约800字） 在一个阳光明媚的上午，公司的业务系统需要展示“年龄大于25岁的员工信息”。

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Sun Microsystems trademarked the term JDBC, and nowhere in said trademark does it denote that JDBC stands for Java Database Connectivity. The term JDBC obviously refers to the set of APIs packaged in ...

org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot ...

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