oci_fetch_assoc() returns the next row from the result data as an associative array (identical to oci_fetch_array() call with OCI_ASSOC flag).
注: 本函数对 PHP NULL 值设定 NULL 字段。
A subsequent call to oci_fetch_assoc() will return the next row or FALSE if there are no more rows.
注: Oracle returns all field names in uppercase and associative indices in the result array will be uppercased too.
有关 OCI8 驱动程序执行的数据类型映射的细节，见驱动程序支持的数据类型。
See also oci_fetch_array(), oci_fetch_object(), oci_fetch_row() and oci_fetch_all().