ifx_do
Description
int ifx_do ( int result_id)如果成功则返回 TRUE，失败则返回 FALSE。
Executes a previously prepared query or opens a cursor for it.
Does NOT free result_id on error.
Also sets the real number of ifx_affected_rows() for non-select statements for retrieval by ifx_affected_rows()
See also: ifx_prepare().