I understand that if you are importing data into the database 
that this will go faster if there are no indices against the 
target table.

If I want to run this statement:
INSERT INTO table_a SELECT * from table_b WHERE value_1 BETWEEN 
X AND Y;
is it best to do that with or without indices?

AND, if I want to run this statement:
DELETE FROM table_B WHERE value_1 BETWEEN X AND Y;
is it best to do that with or without indices?


We are using v 7.2.1 on a Sun E4500.

TIA,
val



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