(PECL ingres >= 1.1.0)
Get a meaningful error message for the last error generated
string ingres_error ([ resource $link ] )
Returns a string containing the last error, or NULL if no error has occurred.
If a link resource is passed to ingres_error(), it returns the last error recorded for the link. If no link is passed then ingres_error() returns the last error reported using the default link.
The function, ingres_err