A holdable cursor, or result, is one that does not automatically close when the transaction that contains the cursor is committed.
一个可保持的游标(或结果)，就是说该游标在包含它的事务被提交后，也不会自动地关闭。
2
Why does the commit or rollback of atransactionclose the result set?
为何事务的提交或回滚关闭结果集？
3
Thus, they should not be interpreted to imply aclose and predictable relationship between a specific central bank transaction and the quantity of money.