摘要:
---------数学函数 1.绝对值 S:select abs(-1) value O:select abs(-1) value from dual 2.取整(大) S:select ceiling(-1.001) value O:select ceil(-1.001) value f... 阅读全文
摘要:
Hibernate3 错误: could not initialize proxy - no Session异常:org.hibernate.LazyInitializationException:could not initialize proxy - no Sessionat org.hiber... 阅读全文