纯好人不用打:白羊
没人防:双子(迷宫)、天平(卡妙的冰箱)、射手(迷宫)
打死:巨蟹(紫龙)、山羊(紫龙自曝)、双鱼(阿瞬)、水瓶(冰河)
没打过,放水:狮子(星矢)、天蝎(冰河)、金牛(星矢)、处女(一辉)
这样看来紫龙是最NB的,一个人干掉2个,而且靠他师傅走后门天平不用打,还用天平的武器救了冰河。
冰河和他师傅干了2仗
冰河那段也挺NB,先是在天平被冻个半死,然后在天蝎被针扎个半死,最后到了水瓶还能把他师傅干掉
冰河和他师傅是最体现实力的一仗,纯实力对扣
合着星矢谁也没杀,就TM来打酱油的。。。
posted @
2011-10-21 14:29 Jcat 阅读(543) |
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简单过一遍,详细的以后遇到慢慢研究。
主要的更新在几个方面:
1. OUI的改进
2. Oracle Restart
3. ASM的增强!!!
New Grid Infrastructure Installation Option
1. 单点包括:ASM、listener和Oracle Restart(监控、管理并自动重启各个组件)
2. 集群包括:ASM、listener和Clusterware
New Desktop and Server Class Options 1. Desktop Class:适用于笔记本、台式机
2. Server Class:适用于服务器(功能上没区别,多一些高级配置选项)
Daylight Savings Time Upgrade of Timestamp with Timezone Data Type 新的DBMS_DST包,优化对TIMESTAMP WITH TIMEZONE数据的管理
SYSASM Privilege 管理ASM需要SYSASM权限,旨在分清ASM管理和DB管理
Fixup Scripts and Prerequisite Checks 安装前检查时,如果遇到不符合要求的配置,OUI会对一些检查项自动生成fixup脚本,用root执行就可以解决相应问题。
New Tool to Configure Custom Installation Options OUI不在提供对单个组件的配置功能,如果需要只能用$ORACLE_HOME/bin/chopt命令行进行配置。
我想Oracle的趋势就是为了让更多已经成熟的配置自动化,简化使用。Deinstallation Tool OUI不再用来删除oracle软件,请使用$ORACLE_HOME/deinstall
Intelligent Data Placement 指定ASM磁盘的磁盘范围,旨在将高频访问的数据放在HOT region(比如磁盘的外道)
Oracle Automatic Storage Management Cluster File System (Oracle ACFS) 为其它文件提供ASM的存储功能
Data Pump Export and Data Pump Import Data Pump兼容Export/Import
Use Oracle Restart to Automatically Restart Your Database 1. 针对单点环境
2. 自动重启又问题的组件,如:db instance、listener、asm instance
New Method of Installing Oracle Automatic Storage Management 以前,ASM的安装是伴随着DB的安装;现在是伴随着Software的安装。
其实,就是把ASM上升到一个软件的高度(以前只是db的一个组件)
SRVCTL Support for Single Instance Database in a Cluster SRVCTL统一管理单点(with Restart)和集群数据库(with Clusterware)
Deprecated in Oracle Database 11g Release 2 不支持裸设备了:要么用文件系统、要么用ASM,说白了,
企业环境就必须用ASM 不支持Oracle Ultra Search(9i的一个什么鸟功能)
posted @
2011-06-17 15:35 Jcat 阅读(802) |
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重装完系统,mysql不需要重装,直接当绿色版使用,还更干净
//启动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
)
//简单使用mysql>
show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
+--------------------+
3 rows in set (0.03 sec)
mysql>
use mysqlDatabase 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 |
登陆D:\JAVA\MYSQL\mysql-5.1.53-win32\bin>mysql.exe -uroot
创建数据库mysql> create database testdb;
posted @
2011-06-16 01:40 Jcat 阅读(918) |
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--主键是非分区索引,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;
--主键是分区索引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;
这个案例也告诉我们,在做DDL时,尽量还是显示的写出属性,一些简易语法会引起不可知的定义。最后都用 get_ddl 再查一下,这才是Oracle真正执行的DDL。
posted @
2010-09-15 15:26 Jcat 阅读(1275) |
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列出所有实例
[db2inst1@dcm ~]$ db2ilist
db2inst1
列出当前实例下的所有数据库[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 =
启动实例[db2inst1@dcm ~]$ db2start
07/09/2010 14:24:36 0 0 SQL1063N DB2START processing was successful.
SQL1063N DB2START processing was successful.
连接到数据库[db2inst1@dcm ~]$ db2 connect to sample
Database Connection Information
Database server = DB2/LINUX 9.7.1
SQL authorization ID = DB2INST1
Local database alias = SAMPLE
执行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.
断开连接(不断开就不能db2stop)[db2inst1@dcm ~]$ db2 connect reset
DB20000I The SQL command completed successfully.
关闭实例[db2inst1@dcm ~]$ db2stop
07/09/2010 14:29:32 0 0 SQL1064N DB2STOP processing was successful.
SQL1064N DB2STOP processing was successful.
posted @
2010-07-09 14:32 Jcat 阅读(245) |
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