String Type Conversion

Michael Bourgon reminds us about long string type conversion:

When you take that ultra-complex 6000 character string for BCP and wonder why it’s getting truncated to 4000 (which SSMS has problems showing anyhow), remember that @@servername is sysname, which is an alias for Nvarchar(256)… and adding it to a varchar converts the whole string to nvarchar.

Indeed.

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