# liquibase diff; Cannot find database driver
**URL:** https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728
**Category:** General Discussion
**Created:** [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728 "2010-08-17T08:54:00Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@svaret](https://forum.liquibase.org/u/svaret)
#### Post date: [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728/1 "2010-08-17T08:54:00Z")
Hi, I am trying to run the liquibase diff tool and I keep getting this
C:\dev\liquibase-1.9.5\>java -jar liquibase-1.9.5.jar
–driver=oracle.jdbc.OracleDriver
–url=jdbc:oracle:thin:@dbserver:1580:db
–username=schema1
–password=pwd
diff
–baseUrl=jdbc:oracle:thin:@dbserver:1580:db
–baseDriver=oracle.jdbc.OracleDriver
–baseUsername=schema2
–password=pwd
Migration Failed: Cannot find database driver: oracle.jdbc.OracleDriver
ojdbc14-10.2.0.4.jar is in the classpath
I am running liquibase 1.9.5 om Windows.
Does anyone have a clue?
Best regards /Lasse
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### Author:  [@nvoxland](https://forum.liquibase.org/u/nvoxland)
#### Post date: [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728/2 "2010-08-17T08:54:00Z")
How is it int he classpath? Using the CLASSPATH env variable?
Does it help if you add a -cp ojdbc14…jar parameter to the java call before -jar ?
Nathan
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### Author:  [@svaret](https://forum.liquibase.org/u/svaret)
#### Post date: [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728/3 "2010-08-17T08:54:00Z")
I tried
- pointing out the jar in the CLASSPATH variable
- pointing out the jar via -cp and --classpath
I then get “Illegal argument” (or something alike, I am not at work right now so I don’t remember the exact phrase)
_(A peculiar thing is that Migration Failed: Cannot find database driver: oracle.jdbc.OracleDriver even before specifying --driver=oracle.jdbc.OracleDriver)_
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### Author:  [@nvoxland](https://forum.liquibase.org/u/nvoxland)
#### Post date: [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728/4 "2010-08-17T08:54:00Z")
It will default the oracle.jdbc.OracleDriver based on your URL string if you don’t specify it.
Actually, there is a --classpath liquibase parameter that you can use to specify the JDBC driver. So:
java -jar liquibase-1.9.5.jar
--classpath=PATH\_TO\_DRIVER
--driver=oracle.jdbc.OracleDriver
--url=jdbc:oracle:thin:@dbserver:1580:db
--username=schema1
--password=pwd
diff
--baseUrl=jdbc:oracle:thin:@dbserver:1580:db
--baseDriver=oracle.jdbc.OracleDriver
--baseUsername=schema2
--password=pwd
It should include the system classpath by default, though.
Nathan
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### Author:  [@svaret](https://forum.liquibase.org/u/svaret)
#### Post date: [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728/5 "2010-08-17T08:54:00Z")
I have tried this without any luck. Windows XP is the OS
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### Author:  [@nvoxland](https://forum.liquibase.org/u/nvoxland)
#### Post date: [August 17, 2010, 8:54am UTC](https://forum.liquibase.org/t/liquibase-diff-cannot-find-database-driver/728/6 "2010-08-17T08:54:00Z")
I’m going to be on on vacation until Aug 29th, so I’ll get back to you after then. Sorry I wasn’t able to give you a good answer beforehand. Ended up with too much going on…
Nathan