SQMILES
Updated: 01 December 2008
Use SQMILES to convert from acres, hectares, square feet, square inches, square meters, square miles, or square yards to square miles.
Syntax
SELECT [westclintech].[wct].[SQMILES] (
<@Area, float,>
,<@From_scale, nvarchar(4000),>)
Arguments
@Area
is any real number. @Area is an expression of type float or of a type that can be implicitly converted to float.
@From_scale
is the description of the units for @Area. @From_scale must be a valid value as specified in area unit representations. @From_scale must be of a data type that is implicitly convertible to varchar.
Return Types
float
Remarks
· The following table is a representation of the conversion of one of the area units of measure into square miles:
|
acres
|
0.00152625
|
|
square inches
|
2.49098E-10
|
|
square feet
|
3.58701E-08
|
|
square yards
|
3.22831E-07
|
|
square miles
|
1
|
|
square meters
|
3.86102E-07
|
|
hectares
|
0.003861022
|
· Conversion of meters includes all the standard prefixes with kilo representing 1,000 and yocto representing 10E-24.
Example
select wct.SQMILES(100, 'yd^2')
Here is the result set
----------------------
3.22830578512397E-05
(1 row(s) affected)