DB.Open (gb.db2)
Static Sub Open ( )
Opens a connection to the specified database.
The 
connection properties should be set prior to calling this.
Examples
DIM $hConn As NEW Connection
WITH $hConn
   .Type = "postgresql"
   .Host = "localhost"
   .Login = "username"
   .Password = "passwd"
   .Name = "testdb"
END WITH
TRY $hConn.Open
IF Error THEN PRINT "Cannot Open Database. Error = "; Error.Text