DB2 Useful Commands

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    SYNTAX                                                                             Description
Db2Start
To Start an Instance
Db2Stop
To Stop an Instance
Db2 Connect to <DB>
connect to database
Db2Stop Force
To stop the database manager instance forcefully
Db2cc
start the db2 control center
Db2 List Db Directory
To list all databases in an instance
Db2 List Tables
To list all tables in the connected Database
Db2 List Applications
List all Applications Connected
Db2 get db Cfg
Displays the configuration of a connected Database
Db2 get db cfg for databasename
Displays the configuration of a database Mentioned
Db2 get DBM Cfg
Displays the database level Configuration settings
Db2Terminate
Ends the Process & drops all resources
Db2licm -l
Displays the licence details
Db2 activate db
Activate the database
Db2level
Version of db2
Db2 call get_dbsize_info(?,?,?,-1)
To get size of database
Db2 connection reset
Stops the connection to database
Db2 create database databasename
To create database
Db2 Backup database databasename
Backup database using Offline
Db2 list tableSpaces
List all TableSpaces in the connected Database
Db2  Tables Under Schema
Db2 list tables for schema <schemaname>
Db2 Schemas
Db2 select schemaname from syscat.schemata
Db2 Values Current Schema
Gets the current Schema
Syscat.TabConst
TableConstraints
Syscat.checks
column checks
Syscat.colchecks
Column Constraints
Syscat.References
Referential Constaints
db2 get db cfg | grep -i log
Log file size
db2 get db cfg | grep -i hadr
Hadr Status
db2 get dbm cfg | grep -i SVCENAME
ServiceName
cat /etc/services | grep -i DB2_db2inst2
Instance Port Number
cat /etc/services
All Port Numbers
cat /etc/passwd
Showing All Instances
db2pd -db dbname -hadr
Hadr Status
db2 takeover hadr on db <dbname>
Swap roles of primary and standby
db2 takeover hadr on db <dbname> by force
Takeover Primary operation on the standby db when the original primary is down

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