Difference between LEN() and DATALENGTH() [ All Languages » SQL Server »  T-SQL] Total Hit ( 1740) Rate this article:     Poor     Excellent   Submit Your Question/Comment about this article Rating

Click here to copy the following block --//Len() does not count trailing spaces but datalength will count all characters drop table mytable go Create table mytable( mystring varchar(10)) go INSERT INTO mytable(mystring) VALUES('AB') INSERT INTO mytable(mystring) VALUES('AB ') INSERT INTO mytable(mystring) VALUES(' AB') INSERT INTO mytable(mystring) VALUES(' AB ') INSERT INTO mytable(mystring) VALUES('   AB') INSERT INTO mytable(mystring) VALUES('AB   ') go SELECT mystring,Len(mystring) as Len_A, DataLength(mystring) as Len_B from mytable mystring  Len_A    Len_B    ---------- ----------- ----------- AB     2      2 AB     2      3 AB    3      3 AB    3      4    AB  8      8 AB     2      8

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