To define this variable, let’s use the DB2set command:

Db2set DB2_CLPPROMPT="db2isgreat> "

Our new DB2 Prompt will be “db2isgreat> “. It’s much more better, but we can do more. DB2_CLPPROMPT registry variable can contain the tokens %n, %ia, %d, %da and %i:

• %n – New line
• %ia – Authorization ID of the current instance attachment
• %d – Local alias of the currently connected database
• %da – Authorization ID of the current database connection
• %i – Local alias of the currently attached instance

Now, let’s try with these tokens:

Db2set DB2_CLPPROMPT="%ia@%i, %da@%d> "

With an instance attachment to instance “DB2″ with authorization ID “mycado”. Database “sample” with authorization ID “mycadoax”, will return something like:

MYCADO@DB2, MYCADOAX@SAMPLE >

You can now everytime where you are, and one which instance/database you’re working on.