OverflowException reading decimal value from db

Question

I have a sql server column defined decimal(32,15). When I try to read it using SqlDataReader.GetValue(), I find that the maximum db value that can be accommodated is 79,228,162,514,264. A larger value throws an overflowexception. This is surprising, since the .net decimal type is 128 bits and provides 28 to 29 digits of precision. Can someone explain?

mr.Reband · Accepted Answer · 2013-10-07 18:58:19Z

2

Use SqlDataReader.GetSqlDecimal() instead of SqlDataReader.GetValue().

Here is an example of the problem in detail:

http://weblogs.sqlteam.com/mladenp/archive/2010/08/31/when-does-sql-server-decimal-not-convert-to-net-decimal.aspx

answered Oct 7, 2013 at 18:58

mr.Reband

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Elroy Flynn Over a year ago

Interesting. Thanks for the link. Looks like a .net defect.

rory.ap · Accepted Answer · 2013-10-07 19:15:21Z

1

This also works: SqlDataReader.GetProviderSpecificValue()

answered Oct 7, 2013 at 19:15

rory.ap

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