Oracle dump file

Hi all,
I have tried do a full export in oracle 10g2 in server A then follow by a full import do another 10g2 in server B successfully.
But when i insert a row the10g2 server A and do a full export, follow by bringing the dump file to the database in server B and do full import again using the dump file. I found out that the row inserted does not reflect in the database in server B. Is there any way i can do so that the inserted row can be reflected in serverB?
imp username/password file=dump.dmp full=y log=import.log
Thanks
cheng

thanks hemant,
ignore=y will ignore the prensence of the table. I tried it out, apprantly it run slowly than i do the inital full import.
Other than ignore=y, is there other way of append the data?
Regarding this: To be safe you could either
a. TRUNCATE all the tables in the target "B" database
OR
b. DROP all the tables in the target "B" database (or drop the whole schema)
before you begin the import.
Sorry i quite new to Oracle database.
b.) there a command to drop the whole schema? so that i can do a full import.
a.) Honestly, i also do not know what is truncate, maybe i can go find out from google.
Regarding this: NOTE : Since you are copying specific schemas, you don't need to be using the FULL=Y option but OWNER= in the Export and, optionally, FROMUSER=, TOUSER= in the Import.
So instead of of a full export/import. i should do sth like this.
exp username/password file=dump.dmp log=export.log owner=username
imp username/password file=dump.dmp log=import.log fromuser=username, touser=username
eventhough the username is the same for both the database?

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