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XLeratorDB/engineering Online Documentation

SQL Server function to convert area to square meters


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)


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