You must explicitly check the log file

	,ch10.26666 Page 194 Wednesday, April 11, 2001 1:46 PM	Chapter 10: Direct Path Loads
	194

GNIS.WATERFALLS.WATERFALLS_COUNTY_FK was re-enabled.

Constraint GNIS.WATERFALLS.WATERFALLS_CK was validated
GNIS.WATERFALLS.WATERFALLS_COUNTY_FK was not re-validated due to ORACLE error 2298.

	not found in the parent table to which the FOREIGN KEY constraint refers. If you
	query the user_constraints view now, you’ll find that the validated column for the
	2
	3	WHERE table_name = 'WATERFALLS';

CONSTRAINT_NAME STATUS VALIDATED
------------------------------ -------- -------------
WATERFALLS_PK ENABLED VALIDATED
WATERFALLS_CK ENABLED VALIDATED
WATERFALLS_COUNTY_FK ENABLED NOT VALIDATED

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		195

As you’ve seen, SQL*Loader writes an error message to the log file if it can’t vali-date a constraint. However, to solve the problem, you really need to know more than just that the problem occurred. You need to know the error that prevented the constraint from being validated, and you also need to know which rows of data led to the error occurring. Using the optional EXCEPTIONS keyword in the REENABLE clause, you can cause the ROWIDs of all problem rows to be inserted into an exceptions table. In the following example, the exceptions table is named waterfalls_exc:

	want to delete them so that you can revalidate the constraints involved.
		For large tables, enabling and validating constraints can be a time-consuming process. The constraint validation process validates all rows, not just the new ones. In situations where you are adding a small number of rows to an extremely large table, this constraint val-

Trigger GNIS."WATERFALLS_BEFORE_UPDATE" was disabled before the load.
Trigger GNIS."WATERFALLS_BEFORE_INSERT" was disabled before the load.
Trigger GNIS."WATERFALLS_BEFORE_DELETE" was disabled before the load.

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