SQL Server Error: 515 Cannot Insert the value NULL into column 'Taxable,'
table 'Emerald25.dbo Account Types,' column does not allow nulls. INSERT
FAILS. State = 2, severity = 16
OK, so I then created a tax item of 6%. But I still get the same error, no
matter whether I leave the taxable field at "none" or at "6%".
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