• Beware the Unicode character FULLWIDTH APOSTROPHE ' (U+FF07), because we had a problem with it once since it looks like SQL Server will treat it like any other apostrophe, i.e. as a string constant delimiter or apostrophe escape. So if you're building dynamic SQL (which of course you aren't, and of course neither were we) and you're manually looking for characters to escape or otherwise handle before executing your SQL string, you may need to handle it too.