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原创重写hashCode()方法的心得

将对象相关字段取出，拼成一个字符串，返回字符串的hashCode

2015-01-14 15:42:11 374

原创 eclipse查询快捷键的快捷键

ctrl+shift+L 以后再也不用上网查快捷键了。

2014-12-22 20:48:30 446

转载 ERROR 1598 (HY000): Binary Logging not Possible. Message: Transaction Level READ-COMMITTED in InnoDB

Symptoms On the import of objects to the MySQL database the following message may arise: “ERROR 1598 (HY000) at line 25: Binary logging not possible. Message: Transaction level 'READ-COMMITTED' in

2014-11-03 20:19:54 1467

Oracle_Database_11g_SQL_优化.pdf

Oracle_Database_11g_SQL_优化.pdf ,sql优化,不必了解oracle的内部结构

2014-06-27

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