I have a encrypted column use encrypt function. Querying against this column is almost not acceptable - returning 12 rows took 25,908 ms.
The query was simply Select decrypt(phn_phone_enc) FROM phn WHERE decrypt(phn_phone_enc,'xxx','xxx') LIKE '123%' So I built index like: CREATE INDEX idx_phn_phone_dec ON phn (decrypt(phn_phone_enc, 'xxx', 'xxx')) This returns 12 rows in 68 ms. Would this be the solution for the fast encrypted field search or does this raise the security issue? Kindest regards, Naoko Reeves