To create a PUBLIC synonym, you must have the CREATE PUBLIC SYNONYM system privilege. Syntax. create_synonym ::=. Semantics. OR REPLACE. Specify OR REPLACE to re-create the synonym if it already exists. Use this clause to change the definition of an existing synonym without first dropping it. Restriction on Replacing a Synonym You cannot use the OR REPLACE clause for a type synonym that has any dependent tables or dependent valid user-defined object types. PUBLIC. Specify PUBLIC to create a public synonym.
Oxen used in farms for plowing. An ox (plural oxen), also known as a bullock in Australia and India, is a bovine trained as a draft animal. Oxen are commonly castrated adult male cattle; castration makes the animals easier to control.Cows (adult females) or bulls (intact males) may also be used in some areas.imilar devices are found in France, Austria, Germany, Spain, Canada and the United States, where they may be called ox slings, ox presses or shoeing stalls. The system was sometimes adopted in England also, where the device was called a crush or trevis; one example is recorded in the Vale of Pewsey.
1 Date of discovery: unknown. 2  Origin of name: from the Anglo-Saxon word  iron  or  iren  (the origin of the symbol Fe comes from the Latin word  ferrum  meaning  iron 3  ). Possibly the word iron is derived from earlier words meaning holy metal because it was used to make the swords used in the Crusades..