package require java
java::import -package java.sql DriverManager
java::call Class forName "com.microsoft.sqlserver.jdbc.SQLServerDriver"
set conn [java::call DriverManager getConnection "jdbc:sqlserver://;serverName=localhost" "sa" "P@ssW0rd"]
set stmt [$conn createStatement]
set rs [$stmt executeQuery "SELECT 'Hello, JDBC Type4 World!' AS Message"]
while { [$rs next] } {
    puts [$rs {getString int} 1]
}
$rs close
$stmt close
$conn close