bafjebj的博客

安装RAC时 使用UDEV 绑定，redhat 6，7的几种绑定办法

IBM X3560 e5110驱动 for 2003 X64、X86 /for 2008 X64、x86

10、说明：几个简单的基本的sql语句 　　选择：select * from table1 where 范围 　　插入：insert into table1(field1,field2) values(value1,value2) 　　删除：delete from table1 where 范围 　　更新：update table1 set field1=value1 where 范围 　　查找：select * from table1 where field1 like ’%value1%’ ---like的语法很精妙，查资料! 　　排序：select * from table1 order by field1,field2 [desc] 　　总数：select count * as totalcount from table1 　　求和：select sum(field1) as sumvalue from table1 　　平均：select avg(field1) as avgvalue from table1 　　最大：select max(field1) as maxvalue from table1 　　最小：select min(field1) as minvalue from table1

控制局域网内其它计算机的网络速度，限制其它计算机下载，