純好人不用打：白羊

沒人防：雙子（迷宮）、天平（卡妙的冰箱）、射手（迷宮）

打死：巨蟹（紫龍）、山羊（紫龍自曝）、雙魚（阿瞬）、水瓶（冰河）

沒打過，放水：獅子（星矢）、天蝎（冰河）、金牛（星矢）、處女（一輝）


這樣看來紫龍是最NB的，一個人干掉2個，而且靠他師傅走后門天平不用打，還用天平的武器救了冰河。

冰河和他師傅干了2仗
冰河那段也挺NB，先是在天平被凍個半死，然后在天蝎被針扎個半死，最后到了水瓶還能把他師傅干掉
冰河和他師傅是最體現實力的一仗，純實力對扣

合著星矢誰也沒殺，就TM來打醬油的。。。
簡單過一遍，詳細的以后遇到慢慢研究。
主要的更新在幾個方面：
1. OUI的改進
2. Oracle Restart
3. ASM的增強！！！


New Grid Infrastructure Installation Option
?1. 單點包括：ASM、listener和Oracle Restart（監控、管理并自動重啟各個組件）
?2. 集群包括：ASM、listener和Clusterware

New Desktop and Server Class Options
?1. Desktop Class：適用于筆記本、臺式機
?2. Server Class：適用于服務器（功能上沒區別，多一些高級配置選項）

Daylight Savings Time Upgrade of Timestamp with Timezone Data Type
?新的DBMS_DST包，優化對TIMESTAMP WITH TIMEZONE數據的管理

SYSASM Privilege
?管理ASM需要SYSASM權限，旨在分清ASM管理和DB管理

Fixup Scripts and Prerequisite Checks
?安裝前檢查時，如果遇到不符合要求的配置，OUI會對一些檢查項自動生成fixup腳本，用root執行就可以解決相應問題。

New Tool to Configure Custom Installation Options
?OUI不在提供對單個組件的配置功能，如果需要只能用$ORACLE_HOME/bin/chopt命令行進行配置。我想Oracle的趨勢就是為了讓更多已經成熟的配置自動化，簡化使用。

Deinstallation Tool
?OUI不再用來刪除oracle軟件，請使用$ORACLE_HOME/deinstall

Intelligent Data Placement
?指定ASM磁盤的磁盤范圍，旨在將高頻訪問的數據放在HOT region（比如磁盤的外道）

Oracle Automatic Storage Management Cluster File System (Oracle ACFS)
?為其它文件提供ASM的存儲功能

Data Pump Export and Data Pump Import
?Data Pump兼容Export/Import

Use Oracle Restart to Automatically Restart Your Database
?1. 針對單點環境
?2. 自動重啟又問題的組件，如：db instance、listener、asm instance

New Method of Installing Oracle Automatic Storage Management
?以前，ASM的安裝是伴隨著DB的安裝；現在是伴隨著Software的安裝。
?其實，就是把ASM上升到一個軟件的高度（以前只是db的一個組件）

SRVCTL Support for Single Instance Database in a Cluster
?SRVCTL統一管理單點（with Restart）和集群數據庫（with Clusterware）

Deprecated in Oracle Database 11g Release 2
?不支持裸設備了：要么用文件系統、要么用ASM，說白了，企業環境就必須用ASM
?不支持Oracle Ultra Search（9i的一個什么鳥功能）






















重裝完系統，mysql不需要重裝，直接當綠色版使用，還更干凈

//啟動MYSQL
cd $MYSQL_HOME/bin
D:\JAVA\MYSQL\mysql-5.1.53-win32\bin>mysqld --console??????
110616? 1:26:26 [Note] Plugin 'FEDERATED' is disabled.
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
110616? 1:26:26? InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
110616? 1:26:26? InnoDB: Started; log sequence number 0 44233
110616? 1:26:27 [Note] Event Scheduler: Loaded 0 events
110616? 1:26:27 [Note] mysqld: ready for connections.
Version: '5.1.53-community'? socket: ''? port: 3306? MySQL Community Server (GPL
)

//簡單使用
mysql> show databases;
+--------------------+
| Database?????????? |
+--------------------+
| information_schema |
| mysql????????????? |
| test?????????????? |
+--------------------+
3 rows in set (0.03 sec)

mysql> use mysql
Database changed

mysql> show tables;
+---------------------------+
| Tables_in_mysql?????????? |
+---------------------------+
| columns_priv????????????? |
| db??????????????????????? |
| event???????????????????? |
| func????????????????????? |
| general_log?????????????? |
| help_category???????????? |
| help_keyword????????????? |
| help_relation???????????? |
| help_topic??????????????? |
| host????????????????????? |
| ndb_binlog_index????????? |


登陸
D:\JAVA\MYSQL\mysql-5.1.53-win32\bin>mysql.exe -uroot
創建數據庫
mysql> create database testdb;




--主鍵是非分區索引，也可以看作是全局
create table test_par1
(
? tdate?? varchar2(8) primary key
)
partition by range ( tdate )
(
???? partition p1 values less than ('20090201'),
???? partition p2 values less than ('20090301'),
???? partition pm values less than (MAXVALUE) ?
) tablespace test;


--主鍵是分區索引
create table test_par2
(
? tdate?? varchar2(8)
)
partition by range ( tdate )
(
???? partition p1 values less than ('20090201'),
???? partition p2 values less than ('20090301'),
???? partition pm values less than (MAXVALUE) ?
) tablespace test;

create index i_tdate2 on test_par2(tdate) local;

alter table test_par2 add constraint pk_tdate2 primary key(tdate);



--查看test_par2的DDL
select dbms_metadata.get_ddl( 'TABLE', 'TEST_PAR2' ) from dual;
--整理如下
create table test_par3
(
? tdate?? varchar2(8),
? constraint pk_tdate3 primary key (tdate) using index local
)
partition by range ( tdate )
(
???? partition p1 values less than ('20090201'),
???? partition p2 values less than ('20090301'),
???? partition pm values less than (MAXVALUE) ?
) tablespace test;


這個案例也告訴我們，在做DDL時，盡量還是顯示的寫出屬性，一些簡易語法會引起不可知的定義。最后都用 get_ddl 再查一下，這才是Oracle真正執行的DDL。
列出所有實例
[db2inst1@dcm ~]$ db2ilist
db2inst1

列出當前實例下的所有數據庫
[db2inst1@dcm ~]$ db2 list db directory

?System Database Directory

?Number of entries in the directory = 1

Database 1 entry:

?Database alias?????????????????????? = SAMPLE
?Database name??????????????????????? = SAMPLE
?Local database directory???????????? = /home/db2inst1
?Database release level?????????????? = d.00
?Comment????????????????????????????? =
?Directory entry type???????????????? = Indirect
?Catalog database partition number??? = 0
?Alternate server hostname??????????? =
?Alternate server port number???????? =

啟動實例
[db2inst1@dcm ~]$ db2start
07/09/2010 14:24:36???? 0?? 0?? SQL1063N? DB2START processing was successful.
SQL1063N? DB2START processing was successful.

連接到數據庫
[db2inst1@dcm ~]$ db2 connect to sample

?? Database Connection Information

?Database server??????? = DB2/LINUX 9.7.1
?SQL authorization ID?? = DB2INST1
?Local database alias?? = SAMPLE

執行SQL
[db2inst1@dcm ~]$ db2
db2 => select * from staff where dept=20

ID???? NAME????? DEPT?? JOB?? YEARS? SALARY??? COMM??? ?
------ --------- ------ ----- ------ --------- ---------
??? 10 Sanders?????? 20 Mgr??????? 7? 98357.50???????? -
??? 20 Pernal??????? 20 Sales????? 8? 78171.25??? 612.45
??? 80 James???????? 20 Clerk????? -? 43504.60??? 128.20
?? 190 Sneider?????? 20 Clerk????? 8? 34252.75??? 126.50

? 4 record(s) selected.

退出
db2 => quit
DB20000I? The QUIT command completed successfully.

斷開連接（不斷開就不能db2stop）
[db2inst1@dcm ~]$ db2 connect reset
DB20000I? The SQL command completed successfully.

關閉實例
[db2inst1@dcm ~]$ db2stop
07/09/2010 14:29:32???? 0?? 0?? SQL1064N? DB2STOP processing was successful.
SQL1064N? DB2STOP processing was successful.