目标：创建企业级地理数据库，使用ArcMap通过SDE引擎 与Oracle交互数据，创建完成后将本地的mdb数据库中数据迁移到Oracle的地理数据库当中。
一，安装Oracle客户端
因为ArcMap也是通过Oracle客户端来连接Oracle的，所以我们要先安装Oracle客户端。
需要注意的是，安装后的oracle程序文件根目录是没有network文件夹的,需要手动建立。
然后在network下建立admin文件夹。
然后创建tnsnames.ora。
然后编辑tnsnames.ora，把我们要可以连接的Oracle数据都写在里面。
ORCL@11 = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.11)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = orcl) ) ) ORACLR_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) ) (CONNECT_DATA = (SID = CLRExtProc) (PRESENTATION = RO) ) ) ORCL = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.7.81)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) ) ORCL@192.168.1.111 = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.111)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) )