How to exclude a SQL DB of a particular instance from backup

Hi,

I am using separate scripts to perform FULL, INCR & LOG backups of the MSSQL databases. In each of the scripts I use the keyword "SQLINSTANCE $ALL" to backup all the instances.

Suppose there are 3 instances: Instance1, Instance2, Instance3. And all these instances have 1 database named "DB01".

Now, I need to exclude the database DB01 from LOG backup script of instance "Instance1". But the databases of Instance2 and Instance3 shouldn't be excluded.

Note: I already heard about excluding the databases using NB_SQL_DATABASE_EXCLUDE environment variable. But this will cause excluding the database from all 3 instances. But what I want to exclude is only "Instance1\DB01".

Regards,

Ajeesh B