spec_result_clear_result
dbClearResult()
returns TRUE
, invisibly, for result sets obtained from
both dbSendQuery()
and dbSendStatement()
.
An attempt to close an already closed result set issues a warning in both cases.
dbClearResult()
frees all resources associated with retrieving
the result of a query or update operation.
The DBI backend can expect a call to dbClearResult()
for each
dbSendQuery()
or dbSendStatement()
call.