What Is SQL?

SQL: Data Types

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The following is a list of general SQL datatypes that may not be supported by all relational databases.

Data Type	Syntax	Explanation (if applicable)
integer	integer
smallint	smallint
numeric	numeric(p,s)	Where p is a precision value; s is a scale value. For example, numeric(6,2) is a number that has 4 digits before the decimal and 2 digits after the decimal.
decimal	decimal(p,s)	Where p is a precision value; s is a scale value.
real	real	Single-precision floating point number
double precision	double precision	Double-precision floating point number

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