schema .

"schema" .

Char is "Char" and "Character".

Float is a subtype of Number, include: "Float", "", "DoublePrecision", "Real"; DoublePrecision is a alias of FLOAT(126); Real is a alias of FLOAT(63).

NChar include: "Nchar", "National Character", "National Char".

Number include: "Number", "Numeric", "Decimal", "Dec", "Integer", "Int", "Smallint"; Integer is a alias of Number(38); Int is a alias of Number(38); Smallint is a alias of Number(38).

NVarchar2 include: "NVarchar2", "National Character Varying", "National Char Varying", "NChar Varying".

Varchar2 include: "Varchar2", "Char Varying", "Character Varying", "Varchar".