Export minimize dump size

hi all ;
i have 10.2.0.2 run on Redhat. i have to take backup a schema and import it to a test db.
this schema contains 20 tables and some of them have miilions records. i try to export of this schema and use ;
exp system/password fille=exp.dmp log=exp.lod owner=schemaowner
but dump size is nearly 1GB and this is too big for me. as i mentioned that this dump will use for test and i dont have to take all the records. for example last 7 days of records is enough for me.
i cant take this export without row at least some of records is needed.
how can i do this export and import ???
thanks...

Hello,
I prefer to use Parameter Files like the following ones:
For the Original Export:
TABLES=(
<schema>.<table_1>,
<schema>.<table_2>,
<schema>.<table_n>
FILE=<path>\<dump_file_name>.dmp
LOG=<path>\<log_file_name>.dmp
COMPRESS=N
DIRECT=Y
For the Original Import:
FROMUSER=<schema>
TOUSER=<schema>
TABLES=(<table_1>,<table_2>,...<table_n>)
FILE=<path>\<dump_file_name>.dmp
LOG=<path>\<log_file_name>.dmp
IGNORE=Y
FEEDBACK=10000Then you have just to execute the statements below:
exp <user>/<password> PARFILE=<export_parameter_file>
imp <user>/<password> PARFILE=<import_parameter_file>Hope this help.
Best regards,
Jean-Valentin

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