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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).
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.
21 Ιουν 2015 · Datalength function returns a number of bytes required to store the expression. The number might depend on the database settings like collation or compatibility level. While len strictly operates on the logical level, datalength is strongly related to the implementation of the particular data type. Examples Numbers. For testing purposes, the ...
3 Σεπ 2024 · Use the LEN to return the number of characters encoded into a given string expression, and DATALENGTH to return the size in bytes for a given string expression. These outputs may differ depending on the data type and type of encoding used in the column.
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:
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.
3 Σεπ 2024 · Use the LEN to return the number of characters encoded into a given string expression, and DATALENGTH to return the size in bytes for a given string expression. These outputs may differ depending on the data type and type of encoding used in the column.
