oracle跨库查询

oracle跨库查询--语法/*定义create[public]databselink_link_nameconnectto_usernameidentifiedby_passowrdusing'_servername/_serverurl';*//*调用select*from_table_name@_link_name*/createdatabaselinklink_zhangliconnecttozhangliidentifiedbyzhangliusing'(DESCRIPTION=(ADDRESS_LIST=