带参数的 UPDATE 语句的语法？

Question

Here's the working SQL Statement:

DECLARE @LayOdds DEC = 1.5
DECLARE @Umarketiduselectionid VARCHAR(50) = '1.12677402748783'

UPDATE [dbo].[Fixtures]
SET [Fixtures].[Percent] = [Fixtures].[BackOdds] / @LayOdds * 100 - 100
WHERE [Fixtures].[MarketSelectionId] = @Umarketiduselectionid

Here's my incorrect C# Statement:

string sql = "Update Fixtures SET Percent = BackOdds / @LayOdds * 100 - 100 WHERE MarketSelectionId = @Umarketiduselectionid";

using (var cmd = new SqlCommand(sql, con))
{
    cmd.Parameters.Add("@LayOdds", SqlDbType.Decimal).Value = layOdds;
    cmd.Parameters.Add("@Umarketiduselectionid", SqlDbType.VarChar).Value = umarketiduselectionid;
    con.Open();
    cmd.ExecuteNonQuery();
}

Getting Incorrect syntax near the keyword 'Percent'.

Answer 1

Answer provided kindly by Jim Hewitt above. Many thanks.

Percent is a reserved word. Try [Percent].