SQMETERS
Updated: 01 December 2008
Use SQMETERS to convert from acres, hectares, square feet, square inches, square meters, square miles, or square yards to square meters.
Syntax
SELECT [westclintech].[wct].[SQMETERS] (
<@Area, float,>
,<@From_scale, nvarchar(4000),>
,<@To_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.
@To_scale
is the description of the units for that @Area is to be converted into. @To_scale must be a valid value as specified in area unit representations. In addition to square meters, @To_scale can be square decimeters, square centimeters, square millimeters, square micrometers, square nanometers, square picometers, square femtometers, square attometers, square zeptometers, square yoctometers, square decameters, square hectometers, or square kilometers .@To_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 meters:
|
acres
|
4046.85642
|
|
square inches
|
0.00064516
|
|
square feet
|
0.09290304
|
|
square yards
|
0.83612736
|
|
square miles
|
2589998.11
|
|
square meters
|
1
|
|
hectares
|
10000
|
· Conversion of meters includes all the standard prefixes with kilo representing 1,000 and yocto representing 10E-24.
Example
select wct.SQMETERS(100, 'yd^2', 'm^2')
Here is the result set
----------------------
83.612736
(1 row(s) affected)