oracle函数大全 是学习oracle数据库编程知识中用到的材料。每个程序都要用到函数，对于初学者来说，不了解函数的可以到这个材料中来查找-oracle function Daquan oracle database programming knowledge is to learn the materials used. Each program must use the function, for starters, do not understand the function can go to to find this material