DB2数据迁移之export/import

export导出数据

[db2inst1@xifenfei ~]$ db2 connect to sample

   Database Connection Information

 Database server        = DB2/LINUX 9.5.9
 SQL authorization ID   = DB2INST1
 Local database alias   = SAMPLE

[db2inst1@xifenfei ~]$ db2 "SELECT * FROM DB2INST1.ACT"

ACTNO  ACTKWD ACTDESC             
------ ------ --------------------
    10 MANAGE MANAGE/ADVISE       
    20 ECOST  ESTIMATE COST       
    30 DEFINE DEFINE SPECS        
    40 LEADPR LEAD PROGRAM/DESIGN 
    50 SPECS  WRITE SPECS         
    60 LOGIC  DESCRIBE LOGIC      
    70 CODE   CODE PROGRAMS       
    80 TEST   TEST PROGRAMS       
    90 ADMQS  ADM QUERY SYSTEM    
   100 TEACH  TEACH CLASSES       
   110 COURSE DEVELOP COURSES     
   120 STAFF  PERS AND STAFFING   
   130 OPERAT OPER COMPUTER SYS   
   140 MAINT  MAINT SOFTWARE SYS  
   150 ADMSYS ADM OPERATING SYS   
   160 ADMDB  ADM DATA BASES      
   170 ADMDC  ADM DATA COMM       
   180 DOC    DOCUMENT            

  18 record(s) selected.

[db2inst1@xifenfei ~]$ db2 "export to sample.act of del messages xifenfei.log 
select * from DB2INST1.ACT"

Number of rows exported: 18

[db2inst1@xifenfei ~]$ more sample.act 
10,"MANAGE","MANAGE/ADVISE"
20,"ECOST ","ESTIMATE COST"
30,"DEFINE","DEFINE SPECS"
40,"LEADPR","LEAD PROGRAM/DESIGN"
50,"SPECS ","WRITE SPECS"
60,"LOGIC ","DESCRIBE LOGIC"
70,"CODE  ","CODE PROGRAMS"
80,"TEST  ","TEST PROGRAMS"
90,"ADMQS ","ADM QUERY SYSTEM"
100,"TEACH ","TEACH CLASSES"
110,"COURSE","DEVELOP COURSES"
120,"STAFF ","PERS AND STAFFING"
130,"OPERAT","OPER COMPUTER SYS"
140,"MAINT ","MAINT SOFTWARE SYS"
150,"ADMSYS","ADM OPERATING SYS"
160,"ADMDB ","ADM DATA BASES"
170,"ADMDC ","ADM DATA COMM"
180,"DOC   ","DOCUMENT"

import导入数据

[db2inst2@xifenfei ~]$ more create.act 
CREATE TABLE ACT_COPY  (
ACTNO SMALLINT NOT NULL , 
ACTKWD CHAR(6) NOT NULL , 
ACTDESC VARCHAR(20) NOT NULL )   
IN USERSPACE1; 

[db2inst2@xifenfei ~]$ db2  -tvf create.act
CREATE TABLE ACT_COPY  ( ACTNO SMALLINT NOT NULL , ACTKWD CHAR(6) NOT NULL , ACTDESC VARCHAR(20) NOT NULL ) IN USERSPACE1
DB20000I  The SQL command completed successfully.

[db2inst2@xifenfei ~]$ db2 list tables

Table/View                      Schema          Type  Creation time             
------------------------------- --------------- ----- --------------------------
ACT_COPY                        DB2INST2        T     2012-04-05-16.40.25.103571

  1 record(s) selected.

[db2inst2@xifenfei ~]$ db2 "import from /home/db2inst1/sample.act of del 
messages xifenfei.log insert into act_copy"

Number of rows read         = 18
Number of rows skipped      = 0
Number of rows inserted     = 18
Number of rows updated      = 0
Number of rows rejected     = 0
Number of rows committed    = 18

[db2inst2@xifenfei ~]$ db2 "select * from act_copy"

ACTNO  ACTKWD ACTDESC             
------ ------ --------------------
    10 MANAGE MANAGE/ADVISE       
    20 ECOST  ESTIMATE COST       
    30 DEFINE DEFINE SPECS        
    40 LEADPR LEAD PROGRAM/DESIGN 
    50 SPECS  WRITE SPECS         
    60 LOGIC  DESCRIBE LOGIC      
    70 CODE   CODE PROGRAMS       
    80 TEST   TEST PROGRAMS       
    90 ADMQS  ADM QUERY SYSTEM    
   100 TEACH  TEACH CLASSES       
   110 COURSE DEVELOP COURSES     
   120 STAFF  PERS AND STAFFING   
   130 OPERAT OPER COMPUTER SYS   
   140 MAINT  MAINT SOFTWARE SYS  
   150 ADMSYS ADM OPERATING SYS   
   160 ADMDB  ADM DATA BASES      
   170 ADMDC  ADM DATA COMM       
   180 DOC    DOCUMENT            

  18 record(s) selected.

补充说明
1.chardel 指定字符串分隔符,默认是””
2.lobs to path 指定lob目录,modified by lobsinfile 指定保存一个文件;modified by lobsinsepfiles 指定每个值保存一个文件
3. into table_name指定表导入数据方式:inset(追加),insert_update(有主键,主键匹配更新,否则增加),replace(删除表数据,然后插入)
4.commitcount 和数据库提交相关,默认是automatic:db2内部自动计算什么时候提交
5.restartcount/skipcount N 表示跳过前N条记录,从N+1开始继续导入
6.rowcount N 表示插入条数

[db2inst2@xifenfei ~]$ db2 "import from /home/db2inst1/sample.act of del restartcount  10                               
rowcount 6  messages xifenfei.log  insert into act_copy"

Number of rows read         = 16
Number of rows skipped      = 10
Number of rows inserted     = 6
Number of rows updated      = 0
Number of rows rejected     = 0
Number of rows committed    = 16

7.插入指定列举例

[db2inst2@xifenfei ~]$ db2 "import from /home/db2inst1/sample.act of del method P(1,3) restartcount  10                               
rowcount 2  messages xifenfei.log  replace into act_copy(ACTNO,ACTDESC)"
SQL0668N  Operation not allowed for reason code "7" on table 
"DB2INST2.ACT_COPY".  SQLSTATE=57016
[db2inst2@xifenfei ~]$ db2 reorg table act_copy
DB20000I  The REORG command completed successfully.
[db2inst2@xifenfei ~]$ db2 "import from /home/db2inst1/sample.act of del method P(1,3) restartcount  10                               
rowcount 2  messages xifenfei.log  replace into act_copy(ACTNO,ACTDESC)"

Number of rows read         = 12
Number of rows skipped      = 10
Number of rows inserted     = 2
Number of rows updated      = 0
Number of rows rejected     = 0
Number of rows committed    = 12

[db2inst2@xifenfei ~]$ db2 "select * from act_copy"

ACTNO  ACTKWD ACTDESC             
------ ------ --------------------
   110 -      DEVELOP COURSES     
   120 -      PERS AND STAFFING   

  2 record(s) selected.
Posted in DB2 |

DB2 9.5.0.0升级至9.5.0.9(小版本升级)

0.升级前DB2版本

[db2inst1@xifenfei ~]$ db2level
DB21085I  Instance "db2inst1" uses "32" bits and DB2 code release "SQL09050" 
with level identifier "03010107".
Informational tokens are "DB2 v9.5.0.0", "s071001", "LINUXIA3295", and Fix Pack 
"0".
Product is installed at "/opt/db2/V9.5".

1.查看哪些实例

[root@xifenfei ~]# su - db2inst1
[db2inst1@xifenfei ~]$ db2ilist
db2inst1
db2inst2

2.关闭数据库

[db2inst1@xifenfei ~]$ db2 force applications all
SQL1032N  No start database manager command was issued.  SQLSTATE=57019
[db2inst1@xifenfei ~]$ db2 terminate
DB20000I  The TERMINATE command completed successfully.
[db2inst1@xifenfei ~]$ db2stop
04/05/2012 09:17:13     0   0   SQL1032N  No start database manager command was issued.
SQL1064N  DB2STOP processing was successful.
[db2inst1@xifenfei ~]$ su - db2inst2
Password: 
[db2inst2@xifenfei ~]$ db2 force applications all
DB20000I  The FORCE APPLICATION command completed successfully.
DB21024I  This command is asynchronous and may not be effective immediately.
[db2inst2@xifenfei ~]$ db2 terminate
DB20000I  The TERMINATE command completed successfully.
[db2inst2@xifenfei ~]$ db2stop
04/05/2012 09:20:00     0   0   SQL1064N  DB2STOP processing was successful.
SQL1064N  DB2STOP processing was successful.

3.关闭管理服务器(DAS)

[root@xifenfei ~]# su - dasusr1
[dasusr1@xifenfei ~]$ db2admin stop
SQL4407W  The DB2 Administration Server was stopped successfully.

4.卸装未使用的共享库

[db2inst1@xifenfei ~]$  $HOME/sqllib/bin/ipclean
/home/db2inst1/sqllib/bin/ipclean: Removing DB2 engine and client's IPC resources for db2inst1.
[db2inst2@xifenfei ~]$  $HOME/sqllib/bin/ipclean
/home/db2inst2/sqllib/bin/ipclean: Removing DB2 engine and client's IPC resources for db2inst2.

5.升级数据库软件和组件

[root@xifenfei ~]# cd server/
[root@xifenfei server]# ./installFixPack -b /opt/db2/V9.5/
DBI1017I  installFixPack is updating the DB2 product(s) installed in
      location /opt/db2/V9.5/.


DB2 installation is being initialized.

 Total number of tasks to be performed: 36 
Total estimated time for all tasks to be performed: 1165 

Task #1 start
Description: Stopping DB2 Fault Monitor 
Estimated time 10 second(s) 
Task #1 end 

Task #2 start
Description: Preparing the system 
Estimated time 120 second(s) 
A major error occurred during the execution that caused this program to
terminate prematurely. If the problem persists, contact your technical service
representative.

For more information see the DB2 installation log at
"/tmp/installFixPack.log.9890".

--发生错误,通过日志文件寻找错误
[root@xifenfei server]# more /tmp/installFixPack.log.9890
Stopping DB2 Fault Monitor :.......Success 
ERROR: The installFixPack command detected some DB2 libraries are still loaded
in memory and some applications might still be running in the current
installation copy.  All applications must be stopped. See the fix pack readme
for pre-installation instructions, and re-run the installFixPack command.
Alternatively, to override automatic checking, you can re-issue the
installFixPack command with the '-f db2lib' parameter. Note: If you re-issue
the installFixPack command with the '-f db2lib' parameter, after the DB2
instances are updated, some applications might not work properly and might need
to be restarted to function properly against the updated DB2 instance.

Preparing the system :.......Failure 
--发现是some DB2 libraries are still loaded,导致升级不能进行

--使用-f db2lib参数
[root@xifenfei server]# ./installFixPack -b /opt/db2/V9.5/ -f db2lib
DBI1017I  installFixPack is updating the DB2 product(s) installed in
      location /opt/db2/V9.5/.


DB2 installation is being initialized.

 Total number of tasks to be performed: 36 
Total estimated time for all tasks to be performed: 1165 

Task #1 start
Description: Stopping DB2 Fault Monitor 
Estimated time 10 second(s) 
Task #1 end 

Task #2 start
Description: Preparing the system 
Estimated time 120 second(s) 
Task #2 end 

Task #3 start
Description: Base Client Support for installation with root privileges 
Estimated time 3 second(s) 
Task #3 end 

Task #4 start
Description: Product Messages - English 
Estimated time 11 second(s) 
Task #4 end 

Task #5 start
Description: Base client support 
Estimated time 86 second(s) 
Task #5 end 

Task #6 start
Description: The DB2 required component. 
Estimated time 78 second(s) 
Task #6 end 

Task #7 start
Description: Java Help (HTML) - English 
Estimated time 7 second(s) 
Task #7 end 

Task #8 start
Description: Base server support for installation with root privileges 
Estimated time 7 second(s) 
Task #8 end 

Task #9 start
Description: Global Secure ToolKit 
Estimated time 14 second(s) 
Task #9 end 

Task #10 start
Description: Java support 
Estimated time 11 second(s) 
Task #10 end 

Task #11 start
Description: SQL procedures 
Estimated time 3 second(s) 
Task #11 end 

Task #12 start
Description: ICU Utilities 
Estimated time 54 second(s) 
Task #12 end 

Task #13 start
Description: Java Common files 
Estimated time 20 second(s) 
Task #13 end 

Task #14 start
Description: Base server support 
Estimated time 197 second(s) 
Task #14 end 

Task #15 start
Description: IBM Software Development Kit (SDK) for Java(TM) 
Estimated time 32 second(s) 
Task #15 end 

Task #16 start
Description: Control Center Help (HTML) - English 
Estimated time 13 second(s) 
Task #16 end 

Task #17 start
Description: Connect support 
Estimated time 3 second(s) 
Task #17 end 

Task #18 start
Description: Communication support - TCP/IP 
Estimated time 3 second(s) 
Task #18 end 

Task #19 start
Description: Parallel Extension 
Estimated time 3 second(s) 
Task #19 end 

Task #20 start
Description: Replication tools 
Estimated time 16 second(s) 
Task #20 end 

Task #21 start
Description: Control Center 
Estimated time 40 second(s) 
Task #21 end 

Task #22 start
Description: DB2 data source support 
Estimated time 4 second(s) 
Task #22 end 

Task #23 start
Description: DB2 LDAP support 
Estimated time 3 second(s) 
Task #23 end 

Task #24 start
Description: DB2 Instance Setup wizard 
Estimated time 4 second(s) 
Task #24 end 

Task #25 start
Description: First Steps 
Estimated time 3 second(s) 
Task #25 end 

Task #26 start
Description: Product Signature for DB2 Enterprise Server Edition 
Estimated time 5 second(s) 
Task #26 end 

Task #27 start
Description: Sample database source 
Estimated time 4 second(s) 
Task #27 end 

Task #28 start
Description: Installing or updating SA MP Base Component 
Estimated time 40 second(s) 
Task #28 end 

Task #29 start
Description: Installing or updating DB2 HA scripts for SA MP Base Component 
Estimated time 40 second(s) 
Task #29 end 

Task #30 start
Description: Setting DB2 library path 
Estimated time 180 second(s) 
Task #30 end 

Task #31 start
Description: Executing control tasks 
Estimated time 20 second(s) 
Task #31 end 

Task #32 start
Description: Updating global registry 
Estimated time 20 second(s) 
Task #32 end 

Task #33 start
Description: Starting DB2 Fault Monitor 
Estimated time 10 second(s) 
Task #33 end 

Task #34 start
Description: Updating the db2ls link 
Estimated time 1 second(s) 
Task #34 end 

Task #35 start
Description: Updating the DB2 Administration Server 
Estimated time 40 second(s) 
Task #35 end 

Task #36 start
Description: Updating existing DB2 instances 
Estimated time 60 second(s) 
Task #36 end 

A minor error occurred during the execution.

For more information see the DB2 installation log at
"/tmp/installFixPack.log.15581".
--提示升级有错误发生

--检查日志文件
[root@xifenfei server]# more /tmp/installFixPack.log.15581
TSAMP_VERSION=3.2.1.2
 DBI1130E  The SA MP Base Component could not be installed or updated
      because system prerequisites were not met. See the log file
      /tmp/prereqSAM.log.17293 for details.
--发现是samp组件没有安装导致该错误,忽略

6.升级数据库

[root@xifenfei server]# su - db2inst1
[db2inst1@xifenfei ~]$ db2level  -a
DB21085I  Instance "db2inst1" uses "32" bits and DB2 code release "SQL09059" 
with level identifier "060A0107".
Informational tokens are "DB2 v9.5.0.9", "s120228", "IP23310", and Fix Pack 
"9".
Product is installed at "/opt/db2/V9.5".
[db2inst1@xifenfei ~]$ db2ilist 
db2inst1
db2inst2
[db2inst1@xifenfei ~]$ db2start
04/05/2012 09:39:45     0   0   SQL1063N  DB2START processing was successful.
SQL1063N  DB2START processing was successful.
[db2inst1@xifenfei ~]$ db2 list database DIRECTORY

 System Database Directory

 Number of entries in the directory = 3

Database 1 entry:

 Database alias                       = XFF
 Database name                        = XIFENFEI
 Local database directory             = /home/db2inst1
 Database release level               = c.00
 Comment                              = XIFENFEI TEST DATABASE
 Directory entry type                 = Indirect
 Catalog database partition number    = 0
 Alternate server hostname            =
 Alternate server port number         =

Database 2 entry:

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

Database 3 entry:

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

[db2inst1@xifenfei ~]$ db2updv95 -d toolsdb


_________________________________________________________________________     
                                                                              
                    _____   DB2 Service Tools   _____                         
                                                                              
                            I      B      M                                   
                                                                              
                               db2updv95                                      
                                                                              
   This tool is a service utility designed to update a DB2 Version 9.5        
   database to the current fixpak level.                                      
                                                                              
_________________________________________________________________________     


DB2 Universal Database Version 9.5, 5622-044 (c) Copyright IBM Corp. 2007
Licensed Material - Program Property of IBM
IBM DATABASE 2 Database update to current fix pack tool

db2updv95 completed successfully for database 'toolsdb'. 
[db2inst1@xifenfei ~]$ db2updv95 -d SAMPLE


_________________________________________________________________________     
                                                                              
                    _____   DB2 Service Tools   _____                         
                                                                              
                            I      B      M                                   
                                                                              
                               db2updv95                                      
                                                                              
   This tool is a service utility designed to update a DB2 Version 9.5        
   database to the current fixpak level.                                      
                                                                              
_________________________________________________________________________     


DB2 Universal Database Version 9.5, 5622-044 (c) Copyright IBM Corp. 2007
Licensed Material - Program Property of IBM
IBM DATABASE 2 Database update to current fix pack tool

db2updv95 completed successfully for database 'SAMPLE'.

--指定数据库别名 
[db2inst1@xifenfei ~]$ db2updv95 -d Xff


_________________________________________________________________________     
                                                                              
                    _____   DB2 Service Tools   _____                         
                                                                              
                            I      B      M                                   
                                                                              
                               db2updv95                                      
                                                                              
   This tool is a service utility designed to update a DB2 Version 9.5        
   database to the current fixpak level.                                      
                                                                              
_________________________________________________________________________     


DB2 Universal Database Version 9.5, 5622-044 (c) Copyright IBM Corp. 2007
Licensed Material - Program Property of IBM
IBM DATABASE 2 Database update to current fix pack tool

db2updv95 completed successfully for database 'Xff'. 

[db2inst1@xifenfei ~]$ su - db2inst2
Password: 
[db2inst2@xifenfei ~]$ db2 list database DIRECTORY

 System Database Directory

 Number of entries in the directory = 1

Database 1 entry:

 Database alias                       = XIFENFEI
 Database name                        = XIFENFEI
 Local database directory             = /home/db2inst2/xifenfei
 Database release level               = c.00
 Comment                              =
 Directory entry type                 = Indirect
 Catalog database partition number    = 0
 Alternate server hostname            =
 Alternate server port number         =

[db2inst2@xifenfei ~]$ db2start
04/05/2012 09:46:47     0   0   SQL1063N  DB2START processing was successful.
SQL1063N  DB2START processing was successful.
[db2inst2@xifenfei ~]$ db2updv95 -d  xifenfei


_________________________________________________________________________     
                                                                              
                    _____   DB2 Service Tools   _____                         
                                                                              
                            I      B      M                                   
                                                                              
                               db2updv95                                      
                                                                              
   This tool is a service utility designed to update a DB2 Version 9.5        
   database to the current fixpak level.                                      
                                                                              
_________________________________________________________________________     


DB2 Universal Database Version 9.5, 5622-044 (c) Copyright IBM Corp. 2007
Licensed Material - Program Property of IBM
IBM DATABASE 2 Database update to current fix pack tool

db2updv95 completed successfully for database 'xifenfei'. 

7.补充说明
1)在升级数据库前需要做好数据库和软件备份
2)升级过程时先关闭所有db2相关进程,如果不能正常关闭(非本文上面列举操作相关进程),直接kill
3)升级过程中,如果实例,DAS等升级失败,需要后续手工升级
4)检查相关进程,如果没有正常启动,需要手工给予启动
5)一些工具进行绑定和重新绑定packages

db2 terminate
db2 connect to dbname
db2 BIND /home/db2inst2/sqllib/bnd/db2schema.bnd BLOCKING ALL GRANT PUBLIC SQLERROR CONTINUE
db2 BIND /home/db2inst2/sqllib/bnd/@db2ubind.lst BLOCKING ALL GRANT PUBLIC ACTION ADD
db2 BIND /home/db2inst2/sqllib/bnd/@db2cli.lst BLOCKING ALL GRANT PUBLIC ACTION ADD
db2 terminate
db2rbind xifenfei -l logfile all

DB2中schema管理

0.DB2版本信息

[db2inst1@xifenfei ~]$ db2level
DB21085I  Instance "db2inst1" uses "32" bits and DB2 code release "SQL09050" 
with level identifier "03010107".
Informational tokens are "DB2 v9.5.0.0", "s071001", "LINUXIA3295", and Fix Pack 
"0".
Product is installed at "/opt/db2/V9.5".

1.显示syscat.schemata视图结构

[db2inst1@xifenfei ~]$ db2 "describe table syscat.schemata"

                                Data type                     Column
Column name                     schema    Data type name      Length     Scale Nulls
------------------------------- --------- ------------------- ---------- ----- ------
SCHEMANAME                      SYSIBM    VARCHAR                    128     0 No    
OWNER                           SYSIBM    VARCHAR                    128     0 No    
OWNERTYPE                       SYSIBM    CHARACTER                    1     0 No    
DEFINER                         SYSIBM    VARCHAR                    128     0 No    
DEFINERTYPE                     SYSIBM    CHARACTER                    1     0 No    
CREATE_TIME                     SYSIBM    TIMESTAMP                   10     0 No    
REMARKS                         SYSIBM    VARCHAR                    254     0 Yes 

2.查询当前存在schema

[db2inst1@xifenfei ~]$ db2 "select SCHEMANAME,owner,CREATE_TIME from syscat.schemata"

SCHEMANAME                 OWNER                      CREATE_TIME               
------------            ------------                   ----------------------------
SYSIBM                     SYSIBM                     2012-03-25-15.07.07.196612
SYSCAT                     SYSIBM                     2012-03-25-15.07.07.196612
SYSFUN                     SYSIBM                     2012-03-25-15.07.07.196612
SYSSTAT                    SYSIBM                     2012-03-25-15.07.07.196612
SYSPROC                    SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMADM                  SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMINTERNAL             SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMTS                   SYSIBM                     2012-03-25-15.07.07.196612
NULLID                     SYSIBM                     2012-03-25-15.07.23.011671
SQLJ                       SYSIBM                     2012-03-25-15.07.54.575637
SYSTOOLS                   DB2INST1                   2012-03-25-15.09.01.964744

  11 record(s) selected.

3.显示创建schema

[db2inst1@xifenfei ~]$  db2 "create schema xifenfei"
DB20000I  The SQL command completed successfully.

[db2inst1@xifenfei ~]$ db2 "select SCHEMANAME,owner,CREATE_TIME from syscat.schemata"

SCHEMANAME                 OWNER                      CREATE_TIME               
------------            ------------                  ----------------------------
SYSIBM                     SYSIBM                     2012-03-25-15.07.07.196612
SYSCAT                     SYSIBM                     2012-03-25-15.07.07.196612
SYSFUN                     SYSIBM                     2012-03-25-15.07.07.196612
SYSSTAT                    SYSIBM                     2012-03-25-15.07.07.196612
SYSPROC                    SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMADM                  SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMINTERNAL             SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMTS                   SYSIBM                     2012-03-25-15.07.07.196612
NULLID                     SYSIBM                     2012-03-25-15.07.23.011671
SQLJ                       SYSIBM                     2012-03-25-15.07.54.575637
SYSTOOLS                   DB2INST1                   2012-03-25-15.09.01.964744
XIFENFEI                   DB2INST1                   2012-04-03-12.01.12.724932

  12 record(s) selected.

4.隐式创建schema

[db2inst1@xifenfei ~]$ db2 "create table xff.t_xifenfei(id int,name varchar(100))"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "select SCHEMANAME,owner,CREATE_TIME from syscat.schemata"

SCHEMANAME                 OWNER                      CREATE_TIME               
------------            ------------                 ----------------------------
SYSIBM                     SYSIBM                     2012-03-25-15.07.07.196612
SYSCAT                     SYSIBM                     2012-03-25-15.07.07.196612
SYSFUN                     SYSIBM                     2012-03-25-15.07.07.196612
SYSSTAT                    SYSIBM                     2012-03-25-15.07.07.196612
SYSPROC                    SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMADM                  SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMINTERNAL             SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMTS                   SYSIBM                     2012-03-25-15.07.07.196612
NULLID                     SYSIBM                     2012-03-25-15.07.23.011671
SQLJ                       SYSIBM                     2012-03-25-15.07.54.575637
SYSTOOLS                   DB2INST1                   2012-03-25-15.09.01.964744
XIFENFEI                   DB2INST1                   2012-04-03-12.01.12.724932
XFF                        SYSIBM                     2012-04-03-12.03.12.581260

  13 record(s) selected.

隐式创建schema的所属用户会是SYSIBM(存放系统数据字典表SCHEMA)

5.删除schema

[db2inst1@xifenfei ~]$ db2 "drop schema xff"
DB21034E  The command was processed as an SQL statement because it was not a 
valid Command Line Processor command.  During SQL processing it returned:
SQL0104N  An unexpected token "END-OF-STATEMENT" was found following "drop 
schema xff".  Expected tokens may include:  "RESTRICT".  SQLSTATE=42601

[db2inst1@xifenfei ~]$  db2 drop schema xff restrict 
DB21034E  The command was processed as an SQL statement because it was not a 
valid Command Line Processor command.  During SQL processing it returned:
SQL0478N  DROP, ALTER, TRANSFER OWNERSHIP or REVOKE on object type "SCHEMA" 
cannot be processed because there is an object "XFF.T_XIFENFEI", of type 
"TABLE", which depends on it.  SQLSTATE=42893

[db2inst1@xifenfei ~]$ db2 "drop table xff.t_xifenfei"
DB20000I  The SQL command completed successfully.

[db2inst1@xifenfei ~]$  db2 drop schema xff restrict 
DB20000I  The SQL command completed successfully.

[db2inst1@xifenfei ~]$ db2 "select SCHEMANAME,owner,CREATE_TIME from syscat.schemata"

SCHEMANAME                 OWNER                      CREATE_TIME               
------------            ------------                 ----------------------------
SYSIBM                     SYSIBM                     2012-03-25-15.07.07.196612
SYSCAT                     SYSIBM                     2012-03-25-15.07.07.196612
SYSFUN                     SYSIBM                     2012-03-25-15.07.07.196612
SYSSTAT                    SYSIBM                     2012-03-25-15.07.07.196612
SYSPROC                    SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMADM                  SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMINTERNAL             SYSIBM                     2012-03-25-15.07.07.196612
SYSIBMTS                   SYSIBM                     2012-03-25-15.07.07.196612
NULLID                     SYSIBM                     2012-03-25-15.07.23.011671
SQLJ                       SYSIBM                     2012-03-25-15.07.54.575637
SYSTOOLS                   DB2INST1                   2012-03-25-15.09.01.964744
XIFENFEI                   DB2INST1                   2012-04-03-12.01.12.724932

  12 record(s) selected.

删除schema需要使用restrict关键字,而且该schema中无对象存在.

在DB2中的schema的概念和ORACLE中的概念有着本质的区别:在ORACLE中schema和用户是同一个;在DB2中schema不一定是用户,因为db2内部没有用户的概念,连接用户必须是操作系统用户.

Posted in DB2 |

DB2中产生唯一值三种方式

一.Genearate_unique函数

[db2inst1@xifenfei ~]$ db2 "create table xifenfei.t_gu(custno char(13) for bit data,
> custname varchar(16))"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$  db2 "insert into xifenfei.t_gu values
> (generate_unique(),'www.orasos.com'),(generate_unique(),'xifenfei')"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "select * from xifenfei.t_gu"

CUSTNO                        CUSTNAME        
----------------------------- ----------------
x'20120403054630527862000000' www.orasos.com
x'20120403054630527940000000' xifenfei        

  2 record(s) selected.

generate_unique是按照国际标准时间(UTC)生成的当前时间戳加上当前数据库分区号,包含13个字节的字符串。如果调整了系统时间可能会出现重复

二.序列(Sequence)

[db2inst1@xifenfei ~]$ db2 "create sequence xifenfei.xff_seq
> as bigint
> start with 1
> increment by 1
> no maxvalue
> cycle
> cache 10"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "create table xifenfei.t_seq(xff_id bigint,
> custname varchar(16))"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "insert into xifenfei.t_seq values(nextval 
> for xifenfei.xff_seq,'www.orasos.com'), (nextval for xifenfei.xff_seq,'xifenfei')"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "select * from xifenfei.t_seq"

XFF_ID               CUSTNAME        
-------------------- ----------------
                   1 www.orasos.com
                   2 xifenfei        

  2 record(s) selected.

和ORACLE的sequence基本相同,只是在oracle中是sequence.nextval这里改为了nextnvl for seqence

三.自增字段

--1.generated always as identity方式(不能人工干预插入数值)
[db2inst1@xifenfei ~]$ db2 "create table xifenfei.t_ind_a(xff_id bigint not null generated always 
> as identity(start with 10,increment by 1,minvalue 10,maxvalue 1000000,no cycle,nocache,no order),
> custname varchar(16))"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "insert into xifenfei.t_ind_a(custname) values('www.orasos.com')"
DB20000I  The SQL command completed successfully.
--指定值插入失败
[db2inst1@xifenfei ~]$ db2 "insert into xifenfei.t_ind_a(xff_id,custname) values(11,'XIFENFEI')"
DB21034E  The command was processed as an SQL statement because it was not a 
valid Command Line Processor command.  During SQL processing it returned:
SQL0798N  A value cannot be specified for column "XFF_ID" which is defined as 
GENERATED ALWAYS.  SQLSTATE=428C9
[db2inst1@xifenfei ~]$ db2 "select * from xifenfei.t_ind_a"

XFF_ID               CUSTNAME        
-------------------- ----------------
                  10 www.orasos.com

  1 record(s) selected.

--1.generated by default as identity方式(可以人工干预插入数值)
[db2inst1@xifenfei ~]$ db2 "create table xifenfei.t_ind_d(xff_id bigint not null generated by default 
> as identity (start with 10,increment by 1,minvalue 10,maxvalue 1000000,no cycle,nocache,no order),
> custname varchar(16))"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "insert into xifenfei.t_ind_d(custname) values('www.orasos.com')"
DB20000I  The SQL command completed successfully.
--指定值插入成功
[db2inst1@xifenfei ~]$ db2 "insert into xifenfei.t_ind_d(xff_id,custname) values(11,'XIFENFEI')"
DB20000I  The SQL command completed successfully.
[db2inst1@xifenfei ~]$ db2 "select * from xifenfei.t_ind_d"

XFF_ID               CUSTNAME        
-------------------- ----------------
                  10 www.orasos.com
                  11 XIFENFEI        

  2 record(s) selected.

这个功能和sql server/mysql的自增长列很相似,给出了两种方式选择,使得比它们更加灵活

Posted in DB2 |

DB2远程登录配置

1.服务器端操作

[db2inst2@xifenfei ~]$ netstat -nap |grep db2sysc
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:55554               0.0.0.0:*                   LISTEN      8072/db2sysc 0      
[db2inst2@xifenfei ~]$  db2 list db directory

 System Database Directory

 Number of entries in the directory = 1

Database 1 entry:

 Database alias                       = XIFENFEI
 Database name                        = XIFENFEI
 Local database directory             = /home/db2inst2/xifenfei
 Database release level               = c.00
 Comment                              =
 Directory entry type                 = Indirect
 Catalog database partition number    = 0
 Alternate server hostname            =
 Alternate server port number         =

--配置监听协议
[db2inst2@xifenfei ~]$ db2set db2comm=tcpip

--配置实例端口
[db2inst2@xifenfei ~]$ db2 update dbm cfg using svcename 5000
DB20000I  The UPDATE DATABASE MANAGER CONFIGURATION command completed 
successfully.

--重启生效
[db2inst2@xifenfei ~]$ db2stop
04/02/2012 12:33:36     0   0   SQL1064N  DB2STOP processing was successful.
SQL1064N  DB2STOP processing was successful.
[db2inst2@xifenfei ~]$ db2start
04/02/2012 12:33:41     0   0   SQL1063N  DB2START processing was successful.
SQL1063N  DB2START processing was successful.
[db2inst2@xifenfei ~]$ netstat -nap |grep db2sysc
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:50000               0.0.0.0:*                   LISTEN      8462/db2sysc 0

2.客户端配置

C:\Windows\system32>db2 catalog tcpip node vm_xff remote 192.168.1.90 server 50000
DB21061E  未初始化命令行环境。

--DB21061E错误解决
C:\Windows\system32>db2cmd

--编目节点
C:\Windows\system32>db2 catalog tcpip node vm_xff remote 192.168.1.90 server 50000
DB20000I  CATALOG TCPIP NODE命令成功完成。
DB21056W  直到刷新目录高速缓存之后,目录更改才生效。

--编目数据库
C:\Windows\system32>db2 catalog db xifenfei as xifenfei at node vm_xff
DB20000I  CATALOG DATABASE命令成功完成。
DB21056W  直到刷新目录高速缓存之后,目录更改才生效。

C:\Windows\system32> db2 list node directory

 节点目录

 目录中的条目数 = 1

节点 1 条目:

 节点名                            = VM_XFF
 注释                            =
 目录条目类型                    = LOCAL
 协议                            = TCPIP
 主机名                          = 192.168.1.90
 服务名称             = 50000

--terminate使操作生效
C:\Windows\system32>db2 terminate
DB20000I  TERMINATE命令成功完成。

3.验证登陆

[db2inst2@xifenfei sqldbdir]$ db2 connect to xifenfei user db2inst2 using xifenfei

   Database Connection Information

 Database server        = DB2/LINUX 9.5.0
 SQL authorization ID   = DB2INST1
 Local database alias   = XIFENFEI

[db2inst1@xifenfei ~]$ db2 list applications

Auth Id  Application    Appl.      Application Id                                                 DB       # of
         Name           Handle                                                                    Name    Agents
-------- -------------- ---------- -------------------------------------------------------------- -------- -----
DB2INST2 db2bp.exe      45         192.168.1.1.38849.120411160214                                 XIFENFEI   1    
DB2INST2 db2bp          50         *LOCAL.db2inst1.120402072313                                   XIFENFEI   1   
Posted in DB2 |