As with prepared statements in a JDBC application, the values get substituted for each placeholder in orderof appearance in the statement.
与JDBC应用程序中的准备好的语句一样,值可以按在语句中出现的顺序被各占位符取代。
2
Information about all SQL statements executed before the lock-timeout event in the participating transactions, such as statement text, isolation level used, orderof execution, and so on.
在参与事务中的锁超时事件前执行的所有sql语句信息,如语句文本、使用的隔离级、执行顺序等等。
3
After you have the cursor, you can tell it to give you the next record, in which case it moves down the list of records, in the order specified by the SQL statement.