DATALENGTH (SQL)
A function that returns the number of characters in an expression.
Synopsis
DATALENGTH(expression)
Description
The DATALENGTH returns the number of characters used for an expression.
The DATALENGTH, CHAR_LENGTH, and CHARACTER_LENGTH functions are identical. Use of the CHAR_LENGTH function is recommended for new code. DATALENGTH is provided for TSQL compatibility. Refer to CHAR_LENGTH for further details.
Arguments
expression
An expression, which can be the name of a column, a string literal, or the result of another scalar function. The underlying data type can be a character type (such as CHAR or VARCHAR), a numeric, or a data stream.
DATALENGTH returns the INTEGER data type.
See Also
-
CHAR_LENGTH function
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CHARACTER_LENGTH function
