DB2 Commands - UDB

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Begin

to start typedb2start

To stop db2stop

Commands

db2 => connect to sample db2 => bind sample.bndHelp command:Db2 => ?Db2 => ? CATALOG DATABASE - It gives more info on particular commandQuit Commnad:Db2 => quit

db2 => db2start This takes some time (maybe 30 seconds)DB20000I The DB2START command completed successfully.

db2 => ? ACTIVATE DATABASE GET CONTACTGROUPS RECONCILE ADD CONTACT GET CONTACTS RECOVER ADD CONTACTGROUP GET/UPDATE DB CFG REDISTRIBUTE DB PARTITION ADD DATALINKS MANAGER GET/UPDATE DBM CFG REFRESH LDAP ADD DBPARTITIONNUM GET DBM MONITOR SWITCHES REGISTER LDAP ADD XMLSCHEMA GET DESCRIPTION FOR HEALTH REGISTER XMLSCHEMA ARCHIVE LOG GET NOTIFICATION LIST REGISTER XSROBJECT ATTACH GET HEALTH SNAPSHOT REORG INDEXES/TABLE AUTOCONFIGURE GET INSTANCE REORGCHK BACKUP DATABASE GET MONITOR SWITCHES RESET ADMIN CFG BIND GET RECOMMENDATIONS RESET ALERT CFG CATALOG APPC NODE GET ROUTINE RESET DB CFG CATALOG APPN NODE GET SNAPSHOT RESET DBM CFG CATALOG DATABASE HELP RESET MONITOR CATALOG DCS DATABASE HISTORY RESTART DATABASE CATALOG LDAP DATABASE IMPORT RESTORE DATABASE CATALOG LDAP NODE INITIALIZE TAPE REWIND TAPE CATALOG LOCAL NODE INSPECT ROLLFORWARD DATABASE CATALOG NPIPE NODE LIST ACTIVE DATABASES RUNCMD CATALOG NETBIOS NODE LIST APPLICATIONS RUNSTATS CATALOG ODBC DATA SOURCE LIST COMMAND OPTIONS SET CLIENT CATALOG TCPIP NODE LIST DATABASE DIRECTORY SET RUNTIME DEGREE CHANGE DATABASE COMMENT LIST DB PARTITION GROUPS SET TABLESPACE CONTAINERS CHANGE ISOLATION LEVEL LIST DATALINKS MANAGERS SET TAPE POSITION COMPLETE XMLSCHEMA LIST DBPARTITIONNUMS SET UTIL_IMPACT_PRIORITY CREATE DATABASE LIST DCS APPLICATIONS SET WRITE

CREATE TOOLS CATALOG LIST DCS DIRECTORY START DATABASE MANAGER DEACTIVATE DATABASE LIST DRDA INDOUBT START HADR DECOMPOSE XML DOCUMENT LIST HISTORY STOP DATABASE MANAGER DECOMPOSE XML DOCUMENTS LIST INDOUBT TRANSACTIONS STOP HADR DEREGISTER LIST NODE DIRECTORY TAKEOVER HADR DESCRIBE LIST ODBC DATA SOURCES TERMINATE DETACH LIST PACKAGES/TABLES UNCATALOG DATABASE DROP CONTACT LIST TABLESPACE CONTAINERS UNCATALOG DCS DATABASE DROP CONTACTGROUP LIST TABLESPACES UNCATALOG LDAP DATABASE DROP DATABASE LIST UTILITIES UNCATALOG LDAP NODE DROP DATALINKS MANAGER LOAD UNCATALOG NODE DROP DBPARTITIONNUM LOAD QUERY UNCATALOG ODBC DATA DROP TOOLS CATALOG MIGRATE DATABASE UNQUIESCE DATABASE ECHO PING UNQUIESCE INSTANCE EDIT PREP/PRECOMPILE UPDATE ALERT CFG EXPORT PRUNE HISTORY/LOGFILE UPDATE COMMAND OPTIONS FORCE APPLICATION PUT ROUTINE UPDATE CONTACT GET/UPDATE ADMIN CFG QUERY CLIENT UPDATE CONTACTGROUP GET ALERT CFG QUIESCE DATABASE UPDATE NOTIFICATION LIST GET AUTHORIZATIONS QUIESCE INSTANCE UPDATE HISTORY GET/UPDATE CLI CFG QUIESCE TABLESPACES UPDATE LDAP NODE GET CONNECTION STATE QUIT UPDATE MONITOR SWITCHES GET CONTACTGROUP REBIND XQUERY

Note: Some commands are operating system specific and may not be available.

For further help: ? db2-command - help for specified command ? OPTIONS - help for all command options ? HELP - help for reading help screens The preceding three options can be run as db2 <option> from an OS prompt.

!db2ic - DB2 Information Center (Windows only) This command can also be run as db2ic from an OS prompt.

Create Database

db2 => create database slo DB20000I The CREATE DATABASE command completed successfully.

db2 => connect to slo

Database Connection Information

Database server = DB2/SUN64 9.7.0 SQL authorization ID = DB90 <- my

db2 account Local database alias = SLO

Create Table

db2 => create table EMPLOYEE \db2 (cont.) => (SSN varchar(9) not null, \db2 (cont.) => LastNamdb2 (cont.) => e varchar(20), \db2 (cont.) => Firsdb2 (cont.) => tName varchar(10), \db2 (cont.) => Sex varchar(1), \db2 (cont.) => DeptNo char(3), \db2 (cont.) => primary key(SSN))DB20000I The SQL command completed successfully.

Insert

db2 => insert into DEPARTMENT values('SG7','Safety Department','Springy')

DB20000I The SQL command completed successfully.

JOIN

db2 => select LastName, DeptName from Employee as e, Department as d \

db2 (cont.) => where e.deptno = d.deptno

LASTNAME DEPTNAME -------------------- --------------------Simpson Safety Department Green Safety Department Bing Accounting Flanders Personnel Geller Personnel

5 record(s) selected.

Join 3 Tables

db2 => select Lastname, projectname \db2 (cont.) => from employee e, department d, project p \db2 (cont.) => where e.deptno = d.deptno and d.deptno = p.deptno

LASTNAME PROJECTNAME -------------------- --------------------Simpson New Pay Green New Pay Flanders GetThings Geller GetThings Simpson Alpha Green Alpha Simpson Omega Green Omega Bing Delta Simpson Pi Green Pi

11 record(s) selected.

Plain & Nested Query

db2 => select lastname from employee as e, department as d \db2 (cont.) => where e.deptno = d.deptno and deptname = 'Safety Department' (line wrapped by powerpoint)

LASTNAME --------------------Simpson Green

2 record(s) selected.

db2 => select lastname from employee where deptno in \db2 (cont.) => (select deptno from department \db2 (cont.) => where deptname = 'Safety Department')

LASTNAME --------------------Simpson Green

2 record(s) selected.

Cartesian Product

db2 => select * from employee, department

SSN LASTNAME FIRSTNAME SEX DEPTNO DEPTNO DEPTNAME LOCATION --------- -------------------- ---------- --- ------ ------ -------------------- ----------245 Simpson Homer M SG7 SG7 Safety Department Springy 245 Simpson Homer M SG7 S8P Accounting London 245 Simpson Homer M SG7 G6H Personnel London 245 Simpson Homer M SG7 K9J InfoTech Toronto 34 Flanders Ned M G6H SG7 Safety Department Springy 34 Flanders Ned M G6H S8P Accounting London 34 Flanders Ned M G6H G6H Personnel London 34 Flanders Ned M G6H K9J InfoTech Toronto 222 Green Rachel F SG7 SG7 Safety Department Springy 222 Green Rachel F SG7 S8P Accounting London 222 Green Rachel F SG7 G6H Personnel London 222 Green Rachel F SG7 K9J InfoTech Toronto 333 Bing Changler M S8P SG7 Safety Department Springy 333 Bing Changler M S8P S8P Accounting London 333 Bing Changler M S8P G6H Personnel London 333 Bing Changler M S8P K9J InfoTech Toronto 111 Geller Monica F G6H SG7 Safety Department Springy 111 Geller Monica F G6H S8P Accounting London 111 Geller Monica F G6H G6H Personnel London 111 Geller Monica F G6H K9J InfoTech Toronto

20 record(s) selected.

UNION

db2 => select location from department union \db2 (cont.) => (select projectlocation from project)

1 ----------Hong Kong London Springy Toronto

4 record(s) selected.

Views

db2 => create view deptlocations as select distinct location from departmentDB20000I The SQL command completed successfully.db2 => select * from deptlocations

LOCATION ----------London Springy Toronto

3 record(s) selected.

Difference & Union

db2 => select * from projlocations except (select * from deptlocations)

1 ----------Hong Kong

1 record(s) selected.

db2 => select * from projlocations union select * from deptlocations

1 ----------Hong Kong London Springy Toronto

4 record(s) selected.

Renaming

db2 => select SSN as SIN from employee

SIN ---------111 222 245 333 34

5 record(s) selected.

Intersect

db2 => select * from projlocations intersect select * from deptlocations

1 ----------London Springy Toronto

3 record(s) selected.

Wildcard

db2 => select * from employee where firstname like 'N%'

SSN LASTNAME FIRSTNAME SEX DEPTNO--------- -------------------- ---------- --- ------34 Flanders Ned M G6H

1 record(s) selected.

Aggregate

db2 => select count(*) from projemp

1 ----------- 6

1 record(s) selected.

Group By

db2 => select count(*) as numberpergroup, projectid from projemp group by projectid

NUMBERPERGROUP PROJECTID-------------- --------- 2 P13 3 P35 1 P43

3 record(s) selected.

Update

db2 => update employee set firstname = 'Bozo' where firstname = 'Ned'DB20000I The SQL command completed successfully.db2 => select * from employee

SSN LASTNAME FIRSTNAME SEX DEPTNO--------- -------------------- ---------- --- ------245 Simpson Homer M SG7 34 Flanders Bozo M G6H 222 Green Rachel F SG7 333 Bing Changler M S8P 111 Geller Monica F G6H

5 record(s) selected.

Delete

db2 => delete from employee where lastname like 'G%'DB20000I The SQL command completed successfully.db2 => select * from employee

SSN LASTNAME FIRSTNAME SEX DEPTNO--------- -------------------- ---------- --- ------245 Simpson Homer M SG7 34 Flanders Bozo M G6H 333 Bing Changler M S8P

3 record(s) selected.

Alter Table

db2 => create table junk (firstattr integer, secondattr decimal(10,2))DB20000I The SQL command completed successfully.db2 => select * from junk

FIRSTATTR SECONDATTR ----------- ------------

0 record(s) selected.

db2 => alter table junk add third varchar(20)DB20000I The SQL command completed successfully.db2 => select * from junk

FIRSTATTR SECONDATTR THIRD ----------- ------------ --------------------

0 record(s) selected.

Dropdb2 => list tables

Table/View Schema Type Creation time------------------------------- --------------- ----- --------------------------DEPARTMENT SYLVIA T 2004-06-21-15.38.51.804343DEPTLOCATIONS SYLVIA V 2004-06-21-16.05.12.051085EMPLOYEE SYLVIA T 2004-06-21-15.38.35.567546JUNK SYLVIA T 2004-06-21-16.26.20.210302PROJECT SYLVIA T 2004-06-21-15.39.42.940604PROJEMP SYLVIA T 2004-06-21-15.40.05.233869PROJLOCATIONS SYLVIA V 2004-06-21-16.06.37.274142

7 record(s) selected.

db2 => drop table junkDB20000I The SQL command completed successfully.db2 => list tables

Table/View Schema Type Creation time------------------------------- --------------- ----- --------------------------DEPARTMENT SYLVIA T 2004-06-21-15.38.51.804343DEPTLOCATIONS SYLVIA V 2004-06-21-16.05.12.051085EMPLOYEE SYLVIA T 2004-06-21-15.38.35.567546PROJECT SYLVIA T 2004-06-21-15.39.42.940604PROJEMP SYLVIA T 2004-06-21-15.40.05.233869PROJLOCATIONS SYLVIA V 2004-06-21-16.06.37.274142

6 record(s) selected.

Terminate

db2 => terminateDB20000I The TERMINATE command completed successfully.obelix[33]% db2stop10/01/2009 14:16:06 0 0 SQL1064N DB2STOP processing was successful.SQL1064N DB2STOP processing was successful.

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