易截截图软件、单文件、免安装、纯绿色、仅160KB

oracle 列转行实例

select * from (select pro_id, sum(decode(month, '01', summ)) one,
                    sum(decode(month, '02', summ)) two,
                    sum(decode(month, '03', summ)) three,
                    sum(decode(month, '04', summ)) four,
                    sum(decode(month, '05', summ)) five,
                    sum(decode(month, '06', summ)) six,
                    sum(decode(month, '07', summ)) seven,
                    sum(decode(month, '08', summ)) eight,
                    sum(decode(month, '09', summ)) nine,
                    sum(decode(month, '10', summ)) ten,
                    sum(decode(month, '11', summ)) eleven,
                    sum(decode(month, '12', summ)) twelve
               from (select r.pro_id, to_char(r.rabi_date, 'mm') as month,
                 


相关文档:

HOW TO SETUP ORACLE ON A RAW PARTITION

HOW TO SETUP ORACLE ON A RAW PARTITION
What is a Raw device and what is the advantage of having a Raw device?
A Raw device, or a Raw disk partition, is a hardware device that is
supported
by a character device driver.  Raw devices are not buffered by the kernel;
the data is transferre ......

oracle 学习笔记1

建立临时表结构
create global temporary table myemp as select * from emp;
修改表结构
alter table dept modify (Dname char(20));
alter table dept add (headcount number(3));
复制一个表
create table emp3 as select * from emp;
参照某个已存在的表建立一个表结构,不需要数据
create table emp4 as selec ......

SQLProgress 1.01.34 for Oracle Only

SQLProgress是一个小巧的操作数据库的工具,所有的版本都不超过3M,包括现在最新的34版本。33以及以前的版本需要安装BDE才能运行,从34开始,只支持Oracle数据库,采用ODAC作为数据库访问的接口,只需要一个不到3M的可执行文件就可以对数据库进行操作,其他什么都用安装。该版本是在SQLProgress1.01.33基础上修改的,33是BD ......

Oracle Data Gurad Logical Standby 相关说明


一.逻辑Standby的准备工作
1  确认操作的对象和语句是否能被逻辑Standby支持
由于逻辑Standby是通过SQL应用来保持与Primary数据库的同步。SQL应用与REDO应用是有很大的区别,REDO应用实际上是在物理Standby端进行RECOVER;SQL应用则是分析重做日志文件中的REDO信息,并将其转换为SQL语句,在逻辑Standby端执 ......
© 2009 ej38.com All Rights Reserved. 关于E健网联系我们 | 站点地图 | 赣ICP备09004571号