Returns the number of characters in a string.
INT
Trailing white space characters are included in the length returned.
The return value of a NULL string is NULL.
If the string is in a multibyte character set, the CHAR_LENGTH value may be less than the BYTE_LENGTH value.
CHAR_LENGTH64 also supports LONG VARCHAR variables of any data size.
If you are licensed to use the Unstructured Data Analytics functionality, you can use this function with large object data. See Unstructured Data Analytics in Sybase IQ > Function Support.