What happens under the EXP

Hi to all.
First I wish you happy New Year, and wish you a lot of a health.
I have a question about exp process. I am wonder what happens when I start export of my database.
Recently I started an exp on the database over which I performed stress tests (a lot of transaction, insert, update..). A table(T1) in which are enroll are exported until some time, then started export other tables, but the table T1 are continue to enroll.
What happen in the concurrent inserts and exports of one table?
Thanks

Export will dump the data for a single table as of the point in time it starts exporting that table. Other inserts/updates/deletes after the start of the export will not appear in the export file, due to normal read consistency rules.
If you are exporting multiple tables, they will each be as of the point in time when export starts processing a given table, unless you specify the CONSISTENT=Y option, in which case all tables are exported as they appeared at the start of the export. This is the only way to get a relationally consistent export.

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SELECT * FROM TABLE(TEST_PACKAGE_1.GET_DATA) WHERE ROWNUM <= 2;
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"CORE     10.2.0.1.0     Production"
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
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