Oracle Finalizes Acquisition of Sun
We are pleased to announce that Oracle has completed its acquisition of Sun Microsystems and Sun is now a wholly owned subsidiary of Oracle. With this news, we want to reiterate our commitment to deliver complete, open and integrated systems that help our customers improve the performance, reliability and security of their IT infrastructure. We would also like to thank the many customers that have supported us throughout the acquisition process.
There is no doubt that this combination transforms the IT industry. With the addition of servers, storage, SPARC processors, the Solaris operating system, Java, and the MySQL database to Oracle s portfolio of database, middleware, and business and industry applications, we plan to engineer and deliver open and integrated systems - from applications to disk - where all the pieces fit and work together out of the box.
Performance levels will be unmatched. Oracle s software already runs faster on Sun SPARC/Solaris than on any other server or operating system. With Sun as a part of Oracle, each layer of the stack will be engineered to further improve performance, reliability and manageability so that IT will be more predictable, more supportable, and more secure. Customers will benefit as their system performance goes up and their system integration and management costs go down.
In addition, our open standards-based technology will give customers choice. Customers can purchase our fully integrated systems, or easily integrate our best-of-breed technologies with their existing environments. Our open technology also enables customers to take full advantage of third party innovations. Oracle also plans to extend its partner specialization program to include Sun technologies to better enable partners to deliver differentiated and value-added solutions to customers.
As always, our primary goal is 100% customer satisfaction. We are dedicated to delivering without interruption the quality of support and service that you have come
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oracle表空间操作详解
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3作者： 来源： 更新日期：2006-01-04
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7建立表空间
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9CREATE TABLESPACE data01
10DATAFILE '/ora ......
decode()函數使用技巧
·软件环境：
1、Windows NT4.0+ORACLE 8.0.4
2、ORACLE安装路径为：C:\ORANT
·含义解释：
decode(条件,值1,翻译值1,值2,翻译值2,...值n,翻译值n,缺省值)
该函数的含义如下：
IF 条件=值1 THEN
RETURN(翻译值1)
ELSIF 条件=值2 THEN
RETURN(翻译值2)
......
1。select * from a where a.rowid=(select min(b.rowid) from b where a.id=b.id);
create test1(
nflowid number primary key,
ndocid number,
drecvdate date);
insert into test1 values (1, 12301, sysdate) ;
insert into test1 values (2, 12301, sysdate);
select * from test1 order by drecvdate:
......
--建立测试数据
create table a(id number);
create table b(id number);
insert into a values(1);
insert into a values(2);
insert into a values(3);
insert into b values(1);
insert into b values(2);
insert into b values(4);
commit;
--左:
--主流数据库通用的方法
select * from a left ......
---------数学函数
1.绝对值
S:select abs(-1) value
O:select abs(-1) value from dual
2.取整(大)
S:select ceiling(-1.001) value
O:select ceil(-1.001) value from dual
3.取整（小）
S:select floor(-1.001) value
O:select floor(-1.001) value from dual
4.取整（截取）
S:select cast(-1.002 as int) v ......
