DB2 命令大全

check Archiving processing

查看日志归档情况

db2 "SELECT DATE(CAST(START_TIME as TIMESTAMP)) as DATE,

count(*) as NUMBER_OF_LOGS_PER_DAY,

(count(*)*23.4375) as AMOUNT_LOGS_DAY_MB,

DBPARTITIONNUM as DBPART

FROM SYSIBMADM.DB_HISTORY

WHERE operation = 'X' -- Archive logs

and OPERATIONTYPE = '1' -- 1 = first log archive method

and TIMESTAMP(END_TIME) > CURRENT_TIMESTAMP - 10 DAYS

GROUP BY DATE(CAST(START_TIME as TIMESTAMP)) , DBPARTITIONNUM

ORDER BY DATE DESC "

查看过去24小时是否进行过备份

[db2inst1@db2v9r7 ~]$]db2 "select substr(comment,1,30) as comment, timestamp(start_time) as start_time, timestamp(end_time) as end_time, substr(firstlog,1,25) as firstlog, substr(lastlog,1,25) as lastlog, seqnum, substr(location,1,50) as location from sysibmadm.db_history where operation = 'B' and timestamp(start_time) > current_timestamp - 24 hours and sqlcode is null "

Dprop check

Capture side:

db2 "SELECT SYNCHTIME, CURRENT TIMESTAMP AS CURRENT_TIMESTAMP FROM ASN.IBMSNAP_REGISTER WHERE GLOBAL_RECORD='Y' with ur"

Apply side:

db2 "select APPLY_QUAL, SET_NAME, SOURCE_ALIAS, TARGET_ALIAS, ACTIVATE, STATUS, LASTRUN, LASTSUCCESS, SYNCHTIME, SLEEP_MINUTES,REFRESH_TYPE from ASN.IBMSNAP_SUBS_SET"

### 查看hadr 环境

$ db2pd -alldbs -hadr

db2pd -db sfa -hadr

#### 在 server端查询node 使用空间

SELECT node_name,CAST(FLOAT(SUM(physical_mb)) / 1024 /1024 AS DEC(8,2))as "Space in TB" ,SUM(num_files)as "Number of files" FROM occupancy GROUP BY node_name ORDER BY "Space in TB" DESC

DB2跟oracle不一样，用户都是操作系统创建的

而且用户没有所谓的默认表空间，默认临时表空间等等

整个数据库的默认表空间就是数据库创建的默认表空间，usertablespace

没有专门记录所有用户的视图，但是有个sysibmadm.privileges记录所有的用户权限

所以可以认为它就是专门记录用户的视图。

db2move 导出数据的时候，虽然可以 db2move export

但是在设置导出字符集的时候还是有些问题，

此时可以 export DB2CODEPAGE=1208 在用户的环境变量级别设置，使其生效。

### 获取root权限

yangmsu@b03zeddbc002i:/> sudo -l|grep -i auto

yangmsu's password:

(root) /usr/opt/db2*/instance*/, (root) /usr/opt/db2*/adm/*, (root) /usr/opt/db2*/bin/*, (root) /tmp/auto_db2install.sh,

yangmsu@b03zeddbc002i:/>

yangmsu@b03zeddbc002i:/tempdb2> sudo /tmp/auto_db2install.sh ### then we have root priviledges

b03zeddbc002i:~ #

b03zeddbc002i:~ # id

uid=0(root) gid=0(root) groups=0(root),64(pkcs11)

b03zeddbc002i:~ #

db2中有2个用户临时表空间，数据库默认使用哪一个？能修改吗？

1) if they are different page size, use the one with larger bufferpool (actually there are more logic behind there, but usually the result will be pointing to the one with larger bufferpool)

2) if they are with same page size, it is round-robin then

查询表大小

db2 "SELECT SUBSTR(TabSchema,1,15), TabName, TabType, (Data_Object_P_Size + Index_Object_P_Size + Long_Object_P_Size + Lob_Object_P_Size + Xml_Object_P_Size)/1024 as Total_P_Size_MB FROM SysIbmAdm.AdminTabInfo ORDER BY Total_P_Size_MB desc" >table_size.log

查看数据库大小，单位byte

1. db2 "CALL GET_DBSIZE_INFO(?, ?, ?, 0) "

2. 通过表来查询数据库大小 snaphot_tbs_cfg

db2 "select (SUM(total_pages)*4)/1024.0/1024 TOTAL_ALLOCATED_SPACE_IN_GB from table (snapshot_tbs_cfg('dbname',-1)) TBS_SPCE"

查看表大小：

DB2执行sql脚本

db2 -tvf sql文件名

du -sg

du -amx| sort -nr |more linux 下查文件系统下文件大小

lsof 命令

grep两个字段/也可以grep两个以上的字段

=> db2 list db directory | grep -E "alias|type"

查询存储过程的内容：

db2 " select PROCNAME,text from syscat.procedures where PROCNAME = 'SP_A_TSKRES'"

team function ID

gdccndba@cn.ibm.com

查看当前数据库名

db2 "select current server from sysibm.sysdummy1"

vi编辑器中替换的方法

:%s/vivian/sky/g（等同于 :g/vivian/s//sky/g）替换每一行中所有 vivian 为 sky

:%s/^/#/g && :%s/^#//g 禁用crontab 时可以采取这个方法行首替换

标准unix/linux下的grep通过以下参数控制上下文

grep -C 5 foo file 显示file文件中匹配foo字串那行以及上下5行

grep -B 5 foo file 显示foo及前5行

grep -A 5 foo file 显示foo及后5行

查看用户权限

db2 "select * from syscat.dbauth where grantee='CHUBALA'"

db2 "select * from syscat.tabauth where grantee='CHUBALA'"

db2 "select substr(GRANTOR,1,30), GRANTORTYPE, substr(GRANTEE,1,30), GRANTEETYPE, substr(TABSCHEMA,1,30), substr(TABNAME,1,30), CONTROLAUTH, ALTERAUTH, DELETEAUTH, INDEXAUTH, INSERTAUTH, REFAUTH, SELECTAUTH, UPDATEAUTH from syscat.tabauth where GRANTEE='AIXDBA3'"

db2 "select substr(GRANTOR,1,30), GRANTORTYPE, substr(GRANTEE,1,30), GRANTEETYPE, substr(TABSCHEMA,1,30), substr(TABNAME,1,30), CONTROLAUTH from syscat.tabauth where GRANTEE='AIXDBA3'"

查看aix下所有用户

cat /etc/passwd

查看aix下所有group

cat /etc/group

查看db2诊断日志

507 db2 get dbm cfg|grep -i diag

508 cd /db/lsinst/db2diag/

509 ls -alrt

510 tail db2diag.log

512 db2diag -time 2013-08-21-21.00|more

db2 "? sql-514" ### 查错误

db2 "? SQL0805N"

传送备份集到TSM（IBM Tivoli Storage Manager）

*****查询tsm 的备份文件存不存在必须要到备份文件所在的目录下，已经测试过：

=> dsmc query backup 文件名

dsmc query backup /db2inst5/backup/SMIWSLA.0.db2inst5.NODE0000.CATN0000.20130824231022.001 -ina

nohup dsmc restore /db2inst5/backup/SMIWSLA.0.db2inst5.NODE0000.CATN0000.20130824231022.001 -ina &

=> dsmc incremental /db/inst2/db2backup/tmp.adsm.LPDB.output

=> dsmc DELETE BACKUP /db2inst5/backup/SMIWSLA.0.db2inst5.NODE0000.CATN0000.20130629121219.001 -deltype=INACTIVE

oslevel -s

db2level

有ITM进程，说明tivoli在运行

### db2的归档不是用 dsmc 做active log的backup 而是调用tsm 的API

### 查询和提取，详细参考infocenter db2adutl command

db2adutl query logs between S0002650 and S0002650 db blogs

db2adutl extract logs between S0002650 and S0002655 db blogs ### 提取到当前目录下

db2adutl upload logs between S0168147 and S0168147 db blogs

$HOME/sqllib/adsm/dsmapipw

tsm client 重置密码

## 查tsm 的客户端配置的server 信息

cat /usr/tivoli/tsm/client/api/bin64/dsm.opt

cat /usr/tivoli/tsm/client/api/bin64/dsm.sys

cat /usr/tivoli/tsm/client/ba/bin/dsm.sys

db2inst5@b03cxnp01028:/db/db2data/db2inst5/db2inst5/NODE0000> env|grep DSM

DSMI_CONFIG=/usr/tivoli/tsm/client/api/bin64/dsm.opt

DSM_LOG=/db2inst5/sqllib/db2dump

DSMI_LOG=/db2inst5/sqllib/db2dump

DSM_DIR=/usr/tivoli/tsm/client/api/bin64

DSM_CONFIG=/usr/tivoli/tsm/client/api/bin64/dsm.opt

DSMI_DIR=/usr/tivoli/tsm/client/api/bin64

db2 catalog tcpip node nodewin1 remote 9.1.39.85 server 50000

db2 catalog database sample （as alias） at node nodewin1

db2 uncatalog db 数据库别名

db2 uncatalog node 节点名

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通过ID owner来判断，服务器是否为本team维护，以下几个ID为本team

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查看当前目录下最大的文件

du -amx |sort -nr|more

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1.我们可以在VI编辑器里把^M进行删除：

将VI切换至命令行模式，输入(注意输入这个^M,这个不是shift+^再加上M,应该是ctrl+v加上ctrl+m)

:%s/^M//g --该命令copy无效，注意^M的输入

在vi命令行模式执行上面的命令，可以将所有行末的^M去掉

2.可以使用dos2unix命令

dos2unix filename

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扩展表空间步骤

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查看表空间使用率

db2 "select TBSP_ID,substr(TBSP_NAME,1,30) as TBSP_NAME, TBSP_TYPE, TBSP_TOTAL_SIZE_KB/1024 as TOTAL_M,TBSP_USED_SIZE_KB/1024 as USED_M,TBSP_UTILIZATION_PERCENT as Pct, TBSP_USING_AUTO_STORAGE, TBSP_AUTO_RESIZE_ENABLED from SYSIBMADM.TBSP_UTILIZATION" |grep CLOBS_TSP

查看表空间属性（是否自动扩展，看AR/auto resize字段）

db2pd -db PMOR11 -tablespace 5

查看扩展到目标使用率需要扩展多少容量

db2 "select substr(TBSP_NAME,1,30) as TBSP_NAME,round((TBSP_USED_SIZE_KB/1024/0.75),0) as After_Extend_M,TBSP_USED_SIZE_KB/1024/0.75-TBSP_TOTAL_SIZE_KB/1024 Should_Extend_M from SYSIBMADM.TBSP_UTILIZATION where TBSP_NAME='CLOBS_TSP'"

查看目标服务器是否为高可用架构

db2pd -db CWAMAPP -hadr

查看是否有备份恢复task正在执行中

db2 list utilities show detail

扩展表空间

alter tablespace CLOBS_TSP extend (all 30M)

HADR 基本维护操作

1. hadr 的启停操作

起 HADR

备：

db2 deactivate database sample

db2 start hadr on database sample as standby

主：

db2 deactivate database sample

db2 start hadr on database sample as primary

##启动完成后，查看hadr 状态

1. db2 get snapshot for db on sample

2. db2pd -db sample -hadr

停 HADR

主：

db2 deactivate database sample

db2 stop hadr on database sample

备：

db2 deactivate database sample /[db2inst1@hadr1 logtarget]$ db2 deactivate database sample user db2inst1 using db2inst1

db2 stop hadr on database sample

### 有时 deactivate database 不加用户名密码时，在stop hadr 时会报错

[db2inst1@hadr1 logtarget]$ db2 stop hadr on database sample

SQL1769N Stop HADR cannot complete. Reason code = "2".

[db2inst1@hadr1 logtarget]$

2. 在备用服务器上执行数据库接管

db2 takeover hadr on database sample (by force)

###################################################################

AIX group:NUS_W_DNAHEAIX

dispool4@in.ibm.com

Tivoli Monitoring Team(NUS_N_SSEASMI)

Tivoli Database Support team(NUS_N_ASTIVDB)

Linux Team group:NUS_N_LINUX

OPS funcation id:cnagdsop@cn.ibm.com

CC: db2inter@br.ibm.com,gdccndba@cn.ibm.com,zfzheng@cn.ibm.com

7:01:37 PM: Wei Shi: BCC: szshiwei@cn.ibm.com, SUZHOU DBA

NUS_W_SSAHEDBA for AHE DBA team

NUS_N_SSUDBDBA for OOP DBA team

NUS_N_SSBRCONN for connect team

NUS_W_DNAHEAIX

NUS_W_SSTIVOLI Tivoli

NUS_N_

3:30:54 PM: yangmsu@cn.ibm.com - Kimi M Yang/China/IBM: tsm :

storbur2@br.ibm.com NUS_N_ADSM

msstsm@us.ibm.com NUS_N_UDTSM , I-MSV-US-BRBLD

1. 原理通透 2. 思路清晰 3.操作娴熟