Hello, I have a table with OWN_ID and OWN_Email - 3ace7cf80edd | [email protected] 3acf6af33ff7 | [email protected] 3acda2524e00 | [email protected] 3ad75583c9a7 | [email protected] 3ad74b018999 | [email protected] etc. the problem is that it should contain only a single ID per Email, also I need to replace all OWN_ID values in another table by highest OWN_ID value of the OWN_Email