Firebird supports both fixed (exact precision) decimal and floating-point (approximate precision) number types. Fixed decimal types are the zero-scaled integer types SMALLINT, INTEGER and, in dialect 3, BIGINT, and two nearly identical scaled numeric types, NUMERIC and DECIMAL. The two floating-point types are FLOAT (single precision) and DOUBLE PRECISION.1
KeywordsDouble Precision Number Type Decimal Point Check Constraint Integer Type
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