(os*****@012.net.il) writes:
From microsoft.com:
"Double data type
A fundamental data type that holds double-precision floating-point
numbers. It's stored as a 64-bit number ranging in value from
approximately -1.797E308 to -4.940E-324 (negative), from 4.94E-324 to
1.797E308 (positive), and 0."
And form SQL Server when trying to commit 4.94E-320:
"The supplied value is not a valid instance of data type float"
I don't know really where you found that documentation. Books Online
for SQL Server says:
float [ ( n ) ]
Is a floating point number data with the following valid values:
-1.79E + 308 through -2.23E - 308, 0 and 2.23E -308 through 1.79E + 308.
n is the number of bits used to store the mantissa of the float number
in scientific notation and thus dictates the precision and storage
size. n must be a value from 1 through 53. The default value of n is
53.
--
Erland Sommarskog, SQL Server MVP,
es****@sommarskog.se
Books Online for SQL Server 2005 at
http://www.microsoft.com/technet/pro...ads/books.mspx
Books Online for SQL Server 2000 at
http://www.microsoft.com/sql/prodinf...ons/books.mspx