Returns the length of the expression in bytes.
Parameter |
Description |
---|---|
expression |
The expression is usually a column name. If the expression is a string constant, it must be enclosed in quotes. |
UNSIGNED INT
Data type |
DATALENGTH |
---|---|
SMALLINT |
2 |
INTEGER |
4 |
DOUBLE |
8 |
CHAR |
Length of the data |
BINARY |
Length of the data |