Probably some one has already replied to this , in case yes then .....just
ignore ...........
Well this kind of problem is quite common. This is because the export does
the export in alphabetical order and so the import does the same. If you
contraints are based on tables which come later in the alpha order you will
hit this problem. The best solution in this case is to import either at
table level ( you will need to make sure of all the related tables are in a
sequence). The other way is to disable all foreign constraints and load and
then enable them again.
Regards
Ravinder
Easaw T
Mathew To: Multiple recipients of list ORACLE-L
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hi
Error during import: ORA-02270: no matching unique or primary key for this
column-list
i am in the process of migrating my oracle databases from dg/ux to solaris8
OS. at the same time, i am taking the opportunity to resize the tables,
indexes to cater for growth in the near future.
to do this, i hv created fresh the new database with improved settings
(given the luxury of disk space we hv now), created the tables and indexes
with new sizings, moved the export over to the new machine and reimported
it. the export was a full export.
on import, i get the above error which means that it cant create a foreign
key constraint becos the primary key constraint for the table has not been
created. this is the case for quite a few of the tables but most of the 400
or so tables were fine.
why should this occur and under what circumstances wld this occur? and how
do i fix this?
almost all the documentation i hv checked including oracle web sites do not
offer a solution and I am not sure the best way forward without a lot of
workaround being done which may not be ideal.
wld any Oracle gurus be kind enough offer any ideas or thoughts on this
except that the export/import utility is probably buggy.
many thanx
Easaw T Mathew
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