1、查看数据库版本
SQL> select * from v$version where rownum<2;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
2、创建表和索引
create table t_a as select * from dba_objects;
create index t_a_ind on t_a(object_id);
3、查询最大值
SQL> select max(object_id) from t_a;
执行计划
———————————————————-
Plan hash value: 3226265922
————————————————————————————–
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
————————————————————————————–
| 0 | SELECT STATEMENT | | 1 | 13 | 2 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 13 | | |
| 2 | INDEX FULL SCAN (MIN/MAX)| T_A_IND | 1 | 13 | 2 (0)| 00:00:01 |
————————————————————————————–
Note—— dynamic sampling used for this statement (level=2)
统计信息
———————————————————-
0 recursive calls
0 db block gets
2 consistent gets
0 physical reads
0 redo size
431 bytes sent via SQL*Net to client
416 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
4、查询最小值
SQL> select min(object_id) from t_a;
执行计划
———————————————————-
Plan hash value: 3226265922
————————————————————————————–
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
————————————————————————————–
| 0 | SELECT STATEMENT | | 1 | 13 | 2 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 13 | |
|
| 2 | INDEX FULL SCAN (MIN/MAX)| T_A_IND | 1 | 13 | 2 (0)| 00:00:01 |
————————————————————————————–
Note—— dynamic sampling used for this statement (level=2)
统计信息
———————————————————-
0 recursive calls
0 db block gets
2 consistent gets
0 physical reads
0 redo size
429 bytes sent via SQL*Net to client
416 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
5、查询最大值和最小值
SQL> select max(object_id),min(object_id) from t_a;
执行计划
———————————————————-
Plan hash value: 2127980459
—————————————————————————
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
—————————————————————————
| 0 | SELECT STATEMENT | | 1 | 13 | 293 (1)| 00:00:04 |
| 1 | SORT AGGREGATE | | 1 | 13 | | |
| 2 | TABLE ACCESS FULL| T_A | 78093 | 991K| 293 (1)| 00:00:04 |
—————————————————————————
Note—— dynamic sampling used for this statement (level=2)
统计信息
———————————————————-
4 recursive calls
0 db block gets
1119 consistent gets
1044 physical reads
0 redo size
502 bytes sent via SQL*Net to client
416 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
6、查询最大值和最小值（排除null）
SQL> select max(object_id),min(object_id) from t_a where object_id is not null;
执行计划
———————————————————-
Plan hash value: 1214261695
———————————————————————————
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time
|
———————————————————————————
| 0 | SELECT STATEMENT | | 1 | 13 | 50 (2)| 00:00:01
|
| 1 | SORT AGGREGATE | | 1 | 13 | |
|
|* 2 | INDEX FAST FULL SCAN| T_A_IND | 78093 | 991K| 50 (2)| 00:00:01
|
———————————————————————————
Predicate Information (identified by operation id):
—————————————————
2 – filter(“OBJECT_ID” IS NOT NULL)
Note—— dynamic sampling used for this statement (level=2)
统计信息
———————————————————-
4 recursive calls
0 db block gets
242 consistent gets
0 physical reads
0 redo size
502 bytes sent via SQL*Net to client
416 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
7、分别查询最大值和最小值
SQL> select (select max(object_id) from t_a) max,(select min(object_id) from t_a) min from dual;
执行计划
———————————————————-
Plan hash value: 312201770
————————————————————————————–
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
————————————————————————————–
| 0 | SELECT STATEMENT | | 1 | | 2 (0)| 00:00:01 |
| 1 | SORT AGGREGATE | | 1 | 13 | |
| 2 | INDEX FULL SCAN (MIN/MAX)| T_A_IND | 1 | 13 | 2 (0)| 00:00:01 |
| 3 | SORT AGGREGATE | | 1 | 13 | |
| 4 | INDEX FULL SCAN (MIN/MAX)| T_A_IND | 1 | 13 | 2 (0)| 00:00:01 |
| 5 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 |
————————————————————————————–
Note—— dynamic sampling used for this statement (level=2)
统计信息
———————————————————-
0 recursive calls
0 db block gets
4 consistent gets
0 physical reads
0 redo size
480 bytes sent via SQL*Net to client
416 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
说明：
1、单查询最大值或者最小值，sql会自动走index
2、如果同时查询最大值和最小值，sql会使用全表扫描，而不是我们想象的索引快速扫描
3、加上where 排除掉null的情况，sql使用索引快速扫描，原因是：在不能确定索引列不为null（或者没有排除掉null）的情况下，不会使用索引快速扫描，而sql为了保证正确而采用了全表扫描
4、INDEX FULL SCAN (MIN/MAX)扫描效率很搞，所以把最大值，最小值分开查询，提高执行效率
5、其他写法
SQL> select (select /*+ index_asc(t_a t_a_ind) */ object_id from t_a where rownu
m=1) min ,(select /*+ index_desc(t_a t_a_ind) */ object_id from t_a where rownum=1)
max from dual;
执行计划
———————————————————-
Plan hash value: 674626822
—————————————————————————————
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
—————————————————————————————
| 0 | SELECT STATEMENT | | 1 | | 2 (0)| 00:
00:01 |
|* 1 | COUNT STOPKEY | | | | | |
| 2 | INDEX FULL SCAN | T_A_IND | 78093 | 991K| 2 (0)| 00:
00:01 |
|* 3 | COUNT STOPKEY | | | | |
| 4 | INDEX FULL SCAN DESCENDING| T_A_IND | 78093 | 991K| 2 (0)| 00:
00:01 |
| 5 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 |
—————————————————————————————
Predicate Information (identified by operation id):
—————————————————
1 – filter(ROWNUM=1)
3 – filter(ROWNUM=1)
Note—— dynamic sampling used for this statement (level=2)
统计信息
———————————————————-
0 recursive calls
0 db block gets
4 consistent gets
0 physical reads
0 redo size
480 bytes sent via SQL*Net to client
416 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
注意：
1）这个要正确执行，需要一个前提条件object_id这列要为not null限制条件，不然会hint提示无效
2）从执行计划的统计信息上看，这个和INDEX FULL SCAN (MIN/MAX)方式的执行效率一样
statspack安装
今天发现关于statspack的安装没有记录下来，现在记录下，下次需要用的时候直接查找blog，而不用在硬盘中查找相关安装配置文件
1、创建statspack专用表空间
CREATE TABLESPACE SP
DATAFILE
‘/opt/oracle/oradata/usercent/PS_1.001.dbf’ SIZE 10M AUTOEXTEND ON NEXT 10M MAXSIZE 5G,
‘/opt/oracle/oradata/usercent/PS_1.002.dbf’ SIZE 10M AUTOEXTEND ON NEXT 10M MAXSIZE 5G,
‘/opt/oracle/oradata/usercent/PS_1.003.dbf’ SIZE 10M AUTOEXTEND ON NEXT 10M MAXSIZE 5G
LOGGING
PERMANENT
EXTENT MANAGEMENT LOCAL AUTOALLOCATE
BLOCKSIZE 8K
SEGMENT SPACE MANAGEMENT AUTO;
2、检测系统中是否有PERFSTAT用户
如果有，需要查询所跑的业务，做一些处理，然后删除
select * from dba_users where username=’PERFSTAT’;
drop user PERFSTAT cascade;
3、检查job_queue_processes
SQL> show parameter job
NAME TYPE VALUE
———————————— ———– ——————————
job_queue_processes integer 6
如果为0，请使用
alter system set job_queue_processes=6;
进行修改，当然数值不一定是6
4、检查timed_statistics
SQL> show parameter timed_statistics
NAME TYPE VALUE
———————————— ———– ——————————
timed_statistics boolean TRUE
如果timed_statistics为false，请使用下面命令修改为true
alter system set timed_statistics=true;
4、安装statspack
4.1）使用sys用户登录数据库
4.2）安装statspack主体程序
执行@?/rdbms/admin/spcreate.sql
如果失败，请执行@?/rdbms/admin/spdrop.sql，然后重新安装
4.3）设置自动采集信息
执行@?/rdbms/admin/spauto.sql
可以通过vi修改采集时间频率
GREATEST/LEAST函数
GREATEST
greatest( expr1, expr2, … expr_n )
expr1, expr2, . expr_n 可以是值也可以是函数.
函数功能： 取得值最大值
SQL> SELECT GREATEST(10,21,3,15,18) FROM dual;
GREATEST(10,21,3,15,18)
———————–
21
SQL> SELECT GREATEST(‘abc’,’bca’,’cba’,’bac’,’cabb’,’cbaa’) FROM dual;
GREATEST(‘ABC’,’BCA’,’CBA’,’BA
——————————
cbaa
LEAST
least( expr1, expr2, … expr_n )
expr1, expr2, . expr_n 可以是值也可以是函数.
函数功能： 取得值最小值
SQL> SELECT least(10,21,3,15,18) FROM dual;
LEAST(10,21,3,15,18)
——————–
3
SQL> SELECT least(‘abc’,’bca’,’cba’,’a’,’bac’,’cabb’,’cbaa’) FROM dual;
LEAST(‘ABC’,’BCA’,’CBA’,’A’,’B
——————————
a
oracle 10g flashback
一、oracle falshback drop
利用flashback drop oracle10g可以对DDL操作进行恢复,oracla提供类似回收站的recyclebin来收集被删除的对象，其实对象在删除的时候oracle把对象写到一个数据字典表中，当用户不需要该对象的时候，可以利用purge命令来从回收站进行清除
select object_name,droptime,dropscn,purge_object,ORIGINAL_NAME from recyclebin;
flashback table f_drop to before drop;
清空回收站：
1）清空一张表：purge table “BIN$N+i42FTvSSemvMrH6frCQg==$0″/table_name;
2）清空一个index：purge index index_name;
2）清空所有对象：PURGE recyclebin;
二、oracle falshback table
对于误drop的table此可以使用本操作，还原drop的table
select t_odu.*,ora_rowscn from a;–查询每条记录对应scn
select dbms_flashback.get_system_change_number from dual;–系统当前scn
alter table t_odu enable row movement;–table row movement
flashback table t_odu to scn 1831189;–基于scn恢复
flashback table t_odu to timestamp to_timestamp(‘2011-6-27 11:45:20′,’yyyy-mm-dd hh24:mi:ss’);–基于时间点
scn补充：
可以通过select ora_rowscn from table 得到每一条结果集当前的SCN，timestamp_to_scn()将scn转换到stmestamp；scn_to_timestamp()将timestamp转换到scn。
三、oracle falshback version query
racle10g falshback 能将所有做了提交的行进行记录，就类似于审计的功能，通过falshback可以查询什么时候执行了什么操作，非常方便，包括闪回版本的查询和审计等
select COUNT(*) from t_query as of scn 1831544;
SELECT COUNT(*) FROM t_query as of timestamp to_timestamp(‘2011-07-21 14:58:00′,’yyyy-mm-dd hh24:mi:ss’);
四、oracle falshback transaction query
回闪事务功能提供对过去某段时间内所完成的事务的查询和撤销
SELECT * FROM flashback_transaction_query a WHERE a.table_name=’T_QUERY’;
补充：
UNDO_SQL 就是当时对表T_QUERY的逆向操作语句
performing DML/DDL operation over object in bin错误模拟
1、alert文件中现象
Thu Jul 21 09:49:38 2011
performing DML/DDL operation over object in bin.
Thu Jul 21 09:51:02 2011
performing DML/DDL operation over object in bin.
2、开始模拟
1）确认回收站功能启用
SQL> show parameter recyclebin;
NAME TYPE VALUE
———————————— ———– ——————————
recyclebin string ON
如果是OFF，使用alter system set recyclebin=on;开启回收站功能
2）创建和删除表
SQL> create table t_drop
2 as
3 select * from tab;
Table created.
SQL> drop table t_drop;
Table dropped.
SQL> show recyclebin;
ORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME
—————- —————————— ———— ——————-
T_DROP BIN$qIuF4JHvDJDgQKjADAsarA==$0 TABLE 2011-07-21:09:46:52
3）查看回收站表中数据
SQL> select * from “BIN$qIuF4JHvDJDgQKjADAsarA==$0”;
TNAME TABTYPE CLUSTERID
—————————— ——- ———-
T TABLE
TAB_CRM_CLIENT TABLE
TEST_COUNT TABLE
V_TEST VIEW
TEST TABLE
T_DROP TABLE
TAB_OLCM TABLE
7 rows selected.
4）对回收站中数据进行dml操作
SQL> delete from “BIN$qIuF4JHvDJDgQKjADAsarA==$0”;
delete from “BIN$qIuF4JHvDJDgQKjADAsarA==$0”
*
ERROR at line 1:
ORA-38301: can not perform DDL/DML over objects in Recycle Bin
5）对回收站中数据进行ddl操作
SQL> drop table “BIN$qIuF4JHvDJDgQKjADAsarA==$0”;
drop table “BIN$qIuF4JHvDJDgQKjADAsarA==$0”
*
ERROR at line 1:
ORA-38301: can not perform DDL/DML over objects in Recycle Bin
6）查看回收站，错误重现
Thu Jul 21 09:56:44 2011
performing DML/DDL operation over object in bin.
Thu Jul 21 09:57:19 2011
performing DML/DDL operation over object in bin.
7）说明
由于对回收站中的对象执行了dml或者ddl操作导致alert报类此做。在回收站中不能执行ddl或者dml操作
innobackupex增量备份测试
1、全备
/opt/mysql/product/5.5/bin/innobackupex –defaults-file=/etc/my.cnf –no-timestamp –socket=/var/run/mysqld/mysqld.sock –user=root –password=passw0rd /opt/mysql/mysql_bak/full
2、修改库中数据
mysql> create database fei;
Query OK, 1 row affected (0.03 sec)
mysql> use fei;
Database changed
mysql> create table t_1 as select * from information_schema.tables;
Query OK, 83 rows affected (0.20 sec)
Records: 83 Duplicates: 0 Warnings: 0
mysql> create table t_2 as select * from information_schema.tables;
Query OK, 84 rows affected (0.03 sec)
Records: 84 Duplicates: 0 Warnings: 0
mysql> create table t_3 as select * from information_schema.tables;
Query OK, 85 rows affected (0.04 sec)
Records: 85 Duplicates: 0 Warnings: 0
3、增量备份
/opt/mysql/product/5.5/bin/innobackupex –defaults-file=/etc/my.cnf –no-timestamp –socket=/var/run/mysqld/mysqld.sock –user=root –password=passw0rd –incremental –incremental-basedir=/opt/mysql/mysql_bak/full /opt/mysql/mysql_bak/inc
4、恢复全备
/opt/mysql/product/5.5/bin/innobackupex /opt/mysql/mysql_bak/full –apply-log
5、恢复增量备份
/opt/mysql/product/5.5/bin/innobackupex /opt/mysql/mysql_bak/full –incremental –incremental-dir=/opt/mysql/mysql_bak/inc –apply-log
6、还原数据库到默认目录
/opt/mysql/product/5.5/bin/innobackupex –defaults-file=/etc/my.cnf /opt/mysql/mysql_bak/full/ –copy-back
7、启动数据库测试
结论为：所有新创建的对象都没恢复成功
后来创建的库和表结构都不存在，在执行增量恢复的时候，有如下错误提示：
110719 11:49:57 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
xtrabackup: error: cannot open /opt/mysql/mysql_bak/full/fei/t_2.ibd
xtrabackup: Error: xtrabackup_apply_delta() failed.
xtrabackup: page size for /opt/mysql/mysql_bak/inc/fei/t_3.ibd.delta is 16384 bytes
110719 11:49:57 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
xtrabackup: error: cannot open /opt/mysql/mysql_bak/full/fei/t_3.ibd
xtrabackup: Error: xtrabackup_apply_delta() failed.
xtrabackup: page size for /opt/mysql/mysql_bak/inc/fei/t_1.ibd.delta is 16384 bytes
110719 11:49:57 InnoDB: Operating system error number 2 in a file operation.
InnoDB: The error means the system cannot find the path specified.
xtrabackup: error: cannot open /opt/mysql/mysql_bak/full/fei/t_1.ibd
xtrabackup: Error: xtrabackup_apply_delta() failed.
fei.*对象是在全备之后创建的，全备份集中并不存在，因此应用增量时就报了错，此时如果原始数据文件已经损坏，那么fei.*的数据就无法恢复了，因为缺少了其数据文件。innobackupex增量备份和恢复功能还不完善，有新增对象时会出错
mysql-cluster 7.x安装（linux）
一、整体规划
192.168.11.10（ndb）
192.168.11.11（ndb）
192.168.11.12（mgm）
192.168.11.13（sql）
192.168.11.14（sql）
二、安装mysql-cluster软件(root)
所有节点相同操作，如果没有mysql用户请创建mysql用户和组
groupadd mysql
useradd -g mysql mysql
上传至/tmp目录，开始解压安装
cd/tmp
tarxzvftarxzvfmysql-cluster-gpl-7.1.15-linux-x86_64-glibc23.tar.gz
mvmysql-cluster-gpl-7.1.15-linux-x86_64-glibc23/opt/mysql_cluster
chownmysql.mysql-R/opt/mysql_cluster
三、管理节点（mgm）配置(mysql)
配置mgm节点的config.ini文件
[NDBDDEFAULT]
NoOfReplicas=2
[NDB_MGMD]
NodeId=1
hostname=192.168.11.12
[NDBD]
NodeId=11
hostname=192.168.11.11
datadir=/opt/mysql_cluster/ndbdata
[NDBD]
NodeId=12
hostname=192.168.11.10
datadir=/opt/mysql_cluster/ndbdata
[MYSQLD]
NodeId=21
hostname=192.168.11.13
[MYSQLD]
NodeId=22
hostname=192.168.11.14
启动mgm节点
/opt/mysql_cluster/bin/ndb_mgmd -f /opt/mysql_cluster/config.ini –configdir=/opt/mysql_cluster
四、数据节点配置(mysql)
配置ndb节点参数(/opt/mysql_cluster/my.cnf)
[mysqld]
ndbcluster
ndb-connectstring=192.168.11.12
[mysql_cluster]
ndb-connectstring=192.168.11.12
创建ndbdata文件夹
mkdir /opt/mysql_cluster/ndbdata
启动ndb节点
/opt/mysql_cluster/bin/ndbd –defaults-file=/opt/mysql_cluster/my.cnf –initial
五、SQL节点配置(mysql)
初始化sql节点
/opt/mysql_cluster/scripts/mysql_install_db –user=mysql –datadir=/opt/mysql_cluster/data –basedir=/opt/mysql_cluster/
配置my.cnf文件(root)
mv /opt/mysql_cluster/my-large.cnf /etc/my.cnf
添加
[mysqld]
ndbcluster
ndb-connectstring=192.168.11.12
[mysql_cluster]
ndb-connectstring=192.168.11.12
修改mysql.server(mysql)
/opt/mysql_cluster/support-files/mysql.server中的datadir和basedir为
basedir=/opt/mysql_cluster
datadir=/opt/mysql_cluster/data
启动sql节点(mysql)
/opt/mysql_cluster/support-files/mysql.server start
六、查看集群状态(msyql)
ndb_mgm> show
Connected to Management Server at: localhost:1186
Cluster Configuration
———————
[ndbd(NDB)] 2 node(s)
id=11 @192.168.11.11 (mysql-5.1.56 ndb-7.1.15, Nodegroup: 0, Master)
id=12 @192.168.11.10 (mysql-5.1.56 ndb-7.1.15, Nodegroup: 0)
[ndb_mgmd(MGM)] 1 node(s)
id=1 @192.168.11.12 (mysql-5.1.56 ndb-7.1.15)
[mysqld(API)] 2 node(s)
id=21 @192.168.11.13 (mysql-5.1.56 ndb-7.1.15)
id=22 @192.168.11.14 (mysql-5.1.56 ndb-7.1.15)
Rman的format格式中的%s参数说明
%c 备份片的拷贝数
%d 数据库名称
%D 位于该月中的第几天 (DD)
%M 位于该年中的第几月 (MM)
%F 一个基于DBID唯一的名称,这个格式的形式为c-IIIIIIIIII-YYYYMMDD-QQ,其中IIIIIIIIII为该数据库的DBID，YYYYMMDD为日期，QQ是一个1-256的序列
%n 数据库名称，向右填补到最大八个字符
%u 一个八个字符的名称代表备份集与创建时间
%p 该备份集中的备份片号，从1开始到创建的文件数
%U 一个唯一的文件名，代表%u_%p_%c
%s 备份集的号
%t 备份集时间戳
%T 年月日格式(YYYYMMDD)
mysql-cluster 7.x安装（windows）
mysql 集群配置（windows2台机器模拟）
1、环境规划
win7 192.168.1.1（管理节点，存储节点，sql节点）
win03 192.168.1.2（存储节点，sql节点）
2、安装cluster（zip包）
win7机器安装在D:\mysql-cluster中
win03机器安装在C:\mysql-cluster中
存储节点存储路径分别为：D:\mysql-cluster\ndbdata和C:\mysql-cluster\ndbdata
3、win7机器配置
创建D:\mysql-cluster\config.txt文件，内容为：
[NDBD DEFAULT]
NoOfReplicas=2
[NDB_MGMD]
ID=1
hostname=192.168.1.1
datadir=D:\mysql-cluster\data
[NDBD]
ID=21
hostname=192.168.1.1
datadir=D:\mysql-cluster\ndbdata
[NDBD]
ID=22
hostname=192.168.1.2
datadir=C:\mysql-cluster\ndbdata
[MYSQLD]
ID=11
hostname=192.168.1.1
[MYSQLD]
ID=12
hostname=192.168.1.2
复制D:\mysql-cluster\my-small.ini到c:\windows\my.ini并添加
[mysqld]
ndbcluster
ndb-connectstring=192.168.1.1
[mysql_cluster]
ndb-connectstring=192.168.1.1
4、win03机器配置
复制C:\mysql-cluster\my-small.ini到c:\windows\my.ini并添加
[mysqld]
ndbcluster
ndb-connectstring=192.168.1.1
[mysql_cluster]
ndb-connectstring=192.168.1.1
5、启动
5.1）启动管理节点(win7 上)
D:\mysql-cluster\bin>ndb_mgmd.exe –config-file=D:\mysql-cluster\config.txt –co
nfigdir=D:\mysql-cluster
5.2）启动存储节点（无先后顺序，第一个启动使用–initial)
win7
D:\mysql-cluster\bin>ndbd.exe –initial
win03
C:\mysql-cluster\bin>ndbd.exe
5.3）启动sql节点（无先后顺序）
win03
C:\mysql-cluster\bin>mysqld.exe –defaults-file=c:\windows\my.ini
win7
d:\mysql-cluster\bin>mysqld.exe –defaults-file=c:\windows\my.ini
6、查看是否启动成功
6.1）查看状态
D:\mysql-cluster\bin>ndb_mgm.exe
— NDB Cluster — Management Client —
ndb_mgm> show
Connected to Management Server at: 192.168.1.1:1186
Cluster Configuration
———————
[ndbd(NDB)] 2 node(s)
id=21 @192.168.1.1 (mysql-5.1.56 ndb-7.1.15, Nodegroup: 0, Master)
id=22 @192.168.1.2 (mysql-5.1.56 ndb-7.1.15, Nodegroup: 0)
[ndb_mgmd(MGM)] 1 node(s)
id=1 @192.168.1.1 (mysql-5.1.56 ndb-7.1.15)
[mysqld(API)] 2 node(s)
id=11 @192.168.1.1 (mysql-5.1.56 ndb-7.1.15)
id=12 @192.168.1.2 (mysql-5.1.56 ndb-7.1.15)
6.2数据操作测试
在win7上创建表，并插入数据
C:\Users\XIFENFEI>mysql -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.56-ndb-7.1.15-cluster-gpl MySQL Cluster Server (GPL)
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.
mysql> use test;
Database changed
mysql> create table city(
-> id mediumint unsigned not null auto_incremen
-> name varchar(20) not null default ”
-> ) engine = ndbcluster default charset utf8;
Query OK, 0 rows affected (9.60 sec)
mysql> insert into city values(1, ‘city1’);
Query OK, 1 row affected (0.41 sec)
mysql> insert into city values(2, ‘city2’);
Query OK, 1 row affected (0.01 sec)
mysql> select * from city;
+—-+——-+
| id | name |
+—-+——-+
| 1 | city1 |
| 2 | city2 |
+—-+——-+
2 rows in set (0.00 sec)
win03机器查看数据
C:\mysql-cluster\bin>mysql -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.56-ndb-7.1.15-cluster-gpl MySQL Cluster Server (GPL)
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the current input statement.
mysql> use test;
Database changed
mysql> show tables;
+—————-+
| Tables_in_test |
+—————-+
| city |
+—————-+
1 row in set (0.11 sec)
mysql> select * from city;
+—-+——-+
| id | name |
+—-+——-+
| 1 | city1 |
| 2 | city2 |
+—-+——-+
2 rows in set (0.05 sec)
mysql 5.5 源码安装
1.安装cmake
1）下载cmake
#wget http://www.cmake.org/files/v2.8/cmake-2.8.3.tar.gz
2）解压cmake
#tar -zvxf cmake-2.8.3.tar.gz
3）配置编译
#cd cmake-2.8.3
#yum -y install gcc
#yum -y install gcc-c++
#./configure
#make
#make install
2.安装MYSQL
1）下载MYSQL
mkdir /opt/mysql_src
#cd /opt/mysql_src
#wget http://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.14.tar.gz/from/http://mysql.mirror.rafal.ca/
2）解压mysql-5.5.14.tar.gz
#tar -zvxf mysql-5.5.14.tar.gz
创建目录（mysql5.5默认已经没有data目录了）
mkdir -p /opt/mysql_src/product
mkdir -p /opt/mysql_src/data
3)配置编译
#cd mysql-5.5.14
#cmake . ##这个方法，安装路径默认
或
#cmake . \
-DCMAKE_BUILD_TYPE:STRING=Release \
-DCMAKE_INSTALL_PREFIX:PATH=/opt/mysql_src/product \
-DCOMMUNITY_BUILD:BOOL=ON \
-DENABLED_PROFILING:BOOL=ON \
-DENABLE_DEBUG_SYNC:BOOL=OFF \
-DINSTALL_LAYOUT:STRING=STANDALONE \
-DMYSQL_DATADIR:PATH=/opt/mysql_src/data \
-DMYSQL_MAINTAINER_MODE:BOOL=OFF \
-DWITH_EMBEDDED_SERVER:BOOL=ON \
-DWITH_EXTRA_CHARSETS:STRING=all \
-DWITH_SSL:STRING=bundled \
-DWITH_UNIT_TESTS:BOOL=OFF \
-DWITH_ZLIB:STRING=bundled \
-LH
如果出现一下错误：
cmake .
— MySQL 5.5.14
— Could NOT find Curses (missing: CURSES_LIBRARY CURSES_INCLUDE_PATH)
CMake Error at cmake/readline.cmake:82 (MESSAGE):
Curses library not found. Please install appropriate package,
remove CMakeCache.txt and rerun cmake.On Debian/Ubuntu, package name is libncurses5-dev, on Redhat and derivates it is ncurses-devel.
Call Stack (most recent call first):
cmake/readline.cmake:126 (FIND_CURSES)
cmake/readline.cmake:216 (MYSQL_USE_BUNDLED_LIBEDIT)
CMakeLists.txt:256 (MYSQL_CHECK_READLINE)
— Configuring incomplete, errors occurred!
需要安装ncurses-devel包
# yum -y install ncurses-devel
#make
#make install
#groupadd mysql
#useradd -r -g mysql mysql
#cd /opt/mysql_sc
#chown -R mysql:mysql .
#scripts/mysql_install_db –user=mysql
添加标准/etc/my.cnf文件（见mysql二进制安装程序，修改相关路径）
#./bin/mysqld_safe –user=mysql &