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29 Απρ 2018 · Another key difference between LEN() and DATALENGTH() is that the LEN() function returns the number of characters in a string. On the other hand, DATALENGTH() returns the number of bytes in an expression.
21 Ιουν 2015 · Len gets a string expression. Of course due to an implicit conversion, you can pass a numeric value to it, but it will still be analyzed by len as a string expression. Datalength, in turn, can operate on any expression, even if the expression result is a number or a date.
20 Φεβ 2019 · LEN is use to return character length, in case of blank it is counting it as 0. You can say LEN will trim the string for calculation. DATALENGTH is use to count memory space (bytes).
The LEN system function returns the number of characters of the specified string expression. On the other hand, the DATALENGTH function returns the number of bytes used to represent any expression. Here’s a summary of the similarities and differences between the LEN() and DATALENGTH() system functions:
18 Αυγ 2014 · The answer to all these questions lie in 2 T-SQL functions: The DATALENGTH () and the LEN (), which are often used interchangeably by developers who may not have fully understood the subtle differences between them. Today, I present before you, a feature comparison of these two functions.
13 Ιαν 2021 · LEN() function returns the number of characters in the string excluding the trailing spaces, however, DATALENGTH() returns the bytes in the string that means it counts both trailing and leading spaces.
13 Φεβ 2009 · Len() converts it to string and trimmed the ending space, which is 0x20, and give you 3 where DataLength() give you the correct length of the data. You can pass everything to DataLength().
