Odbcisql is a windowing SQL processor for databases with ODBC interfaces.
http://wiki.tcl.tk/7110]
ftp://ftp.tcl.tk/pub/tcl/mirror/ftp.procplace.com/sorted/databases/odbcisql/1.0/index.html
ftp://ftp.tcl.tk/pub/tcl/mirror/ftp.procplace.com/sorted/databases/odbcisql/1.0/odbcisql-1.0.tar.gz

TclODBCでnvarcharを使えるようにする
http://reddog.s35.xrea.com/wiki/TclODBC%E3%81%A7nvarchar%E3%82%92%E4%BD%BF%E3%81%88%E3%82%8B%E3%82%88%E3%81%86%E3%81%AB%E3%81%99%E3%82%8B.html
http://reddog.s35.xrea.com/software/tclodbc2.5r1-win32-bin.zip

http://sourceforge.net/projects/tclodbc/
http://msdn.microsoft.com/en-us/library/ms714177(VS.85).aspx