What is the idiomatic way to truncate a string down to 100 byte-pairs?

nvarchar(100) holds 100 **byte-pairs**, as [documented here](https://learn.microsoft.com/en-us/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql?view=sql-server-ver16#remarks) . LEFT([Your String], 100) truncates your string down to 100 **characters** as [documented here](https://learn.microsoft.com/en-us/sql/t-sql/functions/left-transact-sql?view=sql-server-ver16) . These are not the same. Foolishly, I have used LEFT([Your String], 100) in the hopes of keeping [Your String] within nvarchar(100). What are the idiomatic approaches to solving this problem correctly? I considered using CAST, but I'm uncomfortable with implicitly truncating a string.