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29 Απρ 2018 · One difference between the LEN() and DATALENGTH() functions is that the LEN() function excludes trailing blanks (trailing spaces, tabs, etc) whereas DATALENGTH() includes trailing blanks. Note, we’re only talking about blanks that come at the end of the string – not at the start or in the middle.
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).
21 Ιουν 2015 · len ( <string expression> ) datalength ( <expression> ) The difference is small, but it exists. 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.
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.
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.
The DATALENGTH() function returns the number of bytes used to represent an expression. Note: The DATALENGTH() function counts both leading and trailing spaces when calculating the length of the expression. Tip: Also see the LEN() function. Syntax
