ASCII NCHAR SOUNDEX
CHAR PATINDEX SPACE
CHARINDEX REPLACE STR
DIFFERENCE QUOTENAME STUFF
LEFT REPLICATE SUBSTRING
LEN REVERSE UNICODE
LOWER RIGHT UPPER
LTRIM RTRIM
CHAR PATINDEX SPACE
CHARINDEX REPLACE STR
DIFFERENCE QUOTENAME STUFF
LEFT REPLICATE SUBSTRING
LEN REVERSE UNICODE
LOWER RIGHT UPPER
LTRIM RTRIM
在see also里就有String Functions