oracl 和db2 常用语法比较: 1、取前N条记录 Oracle:Select * from TableName where rownum <= N; DB2:Select * from TableName fetch first N rows only; 2、取得系统日期 Oracle:Select sysdate from dual; DB2:Select current timestamp from sysibm.sysdummy1; 3、空值转换 Oracle:Select
MIMO系统中的智能天线技术与空时码快速解码的研究杭州屯f科技大学硕士学位论文
ABSTRACT
With the development of communication technology and the growing demand for a variety of
applications, communications networks are undergoing great change. It is can be expected that
mobile communicati
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博文链接:https://hdxiong.iteye.com/blog/338026原型: public string get FieldName
4、 getFileName
作用:取文件名(不含目录信息)
原型: public String getFileName(O
5、 getFilePathName
作用:取文件全名(带目录)
原型: public String getFilePathName
6、 getFileExt
作用:取文件扩展名(后缀)
原型: public St