13.18.1 New Features
- Unicode data is now passed to and from the ODBC manager on all
platforms. Also, some arbitrary size limits on the length of (text) data
have been removed.
- The SQL “null” value is now supported as parameter to queries, and is
represented as the atom
null. Please note: this is an
incompatible change for string parameters. When passing string
odbc_query_execute_sql/[3,5] using atoms, the atom
null used to be treated as the four character string consisting
of the characters n, u, l and l but it is now
treated as a SQL “null” value. A workaround is to always pass strings
as lists of character codes (which also works in older versions of
SICStus) or as a list of atoms (which only works in SICStus 4.2.2 and
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