Column name has number as its first character

[Sailaja-K-Manvitha]

Column name has number as its first character. how to declare in hbm file?

[hazzik]

Please provide some examples.

[Sailaja-K-Manvitha]

<property name = "fiftyyrs" column= "[50yrs]" type = "string" length = "800"/>

[fredericDelaporte]

So, even with SQL-Server specific identifier quoting, it fails? Have you tried the NHibernate generic SQL identifier quoting, the back-ticks?

<property name="fiftyyrs" column="`50yrs`" type="string" length="800"/>

(I have edit your answer which was appearing empty because the xml was not put into a code block.)