constraint issue

[oracleman]

Are ther any consequences when you disable a
"DISABLE VALIDATE" CONSTRAINT
then load a huge data into a partition table.
After the load,then re-enable the constraint?

What are the costs associated with doing this?

[gpsingh]

It should be the best solution for loading data into partitioned table, provided it is not
a child table.

[vinit]

Also if it does not violate any constraints, else re-enabling them won't be possible.

[gpsingh]

You can re-enable by using exceptions table or if u are certain that there are no
duplicates and you have millions of rows that would cause a lot of time to enable
the unique key then use rely option of enabling constraint which shall force Oracle
to believe that everything is ok .For rely u have to enable query_rewrite parameter in init.ora.