ingres_error
Description
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_error(), should always be called after executing any database query. Calling another function before ingres_error() is called will reset or change any error message from the last Ingres function call.
See also ingres_errno() and ingres_errsqlstate().