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
萨姆森SAMSON HART手持通信器用于3780型HART通信功能定位器操作手册(英文版)pdf,萨姆森SAMSON HART手持通信器用于3780型HART通信功能定位器操作手册(英文版)Operation
2. Operation
Before you can start operating the SAMSON Positioner, you have to load the samson ap
plication program which can be ordered via the