Cursors

游标

常用释义

词性释义

n.

[计]光标;[计]游标;鼠标指针(cursor 的复数)
例句
  • 全部
  • 游标
对于OLTP应用程序,所需的排序和临时空间会比较少,一次只打开少数并发游标。
Oracle also allows cursors to be tightly bound to a looping statement, a construct called a cursor FOR loop.
Oracle还允许将游标与一个循环语句紧密地绑定在一起,形成所谓的游标FOR循环结构。
仅读取队列中的第一条消息时不需要使用游标。
在此过程中,可能会超过发布服务器上可用的最大游标数。
两个游标可能会附加任何信号,在分析的ASCII文件。
每个用户会话都能够打开多个游标,上限由OPEN_CURSORS初始化参数决定。
If you do not close your Cursors, then you might quickly run out of memory and cause your application to crash.
如果您没有关闭Cursors,那么可能会迅速地耗尽内存并导致您的应用程序崩溃。
将关闭但不释放任何其他类型的打开的游标。
Adaptive Server Anywhere must execute value-sensitive cursors in such a way that result set membership is guaranteed.
AdaptiveServerAnywhere必须以保证结果集成员资格的方式执行对值敏感的游标。
Cursor stability ensures that applications using cursors do not introduce inconsistencies into the data in the database.
游标稳定性可以确保使用游标的应用程序不会导致数据库中的数据出现不一致。
Stored procedures that DECLARE and OPEN local cursors can pass the cursors out for use by the calling stored procedure , trigger, or batch .
使用DECLARE和OPEN局部游标的存储过程可以将游标传递出去,以供调用的存储过程、触发器或批处理使用。
In contrast, IDS SPL supports a similar cursor looping statement but does not allow cursors to be explicitly declared, opened, or closed.
相反,虽然IDSSPL也支持类似的游标循环语句,但是不允许显式地声明、打开或关闭游标。
在滚动到某个记录之前,静态游标并不真正获取一行数据。
First, a package must be created to define all of the cursors used in the procedure, then the procedure can be created using the new cursor.
首先,必须创建一个程序包来定义该过程中使用的所有游标,然后才可使用新游标来创建该过程。
The TYPE_FORWARD_ONLY, TYPE_SS_DIRECT_FORWARD_ONLY, and TYPE_SS_SERVER_CURSOR_FORWARD_ONLY cursors support only the next positioning method.
TYPE_FORWARD_ONLY、TYPE_SS_DIRECT_FORWARD_ONLY和TYPE_SS_SERVER_CURSOR_FORWARD_ONLY游标仅支持next定位方法。
此类游标可以用很多有趣的方法来操作,如清单2所示。
In cursors, however, an additional set of scroll locks can be acquired based on the specification of a cursor concurrency level.
但在游标中,可以根据指定的游标并发级别获取一套额外的滚动锁。
Typically used for pointer cursors and for animated figures in games.
典型应用于在游戏中的鼠标和动画的绘制。
When cursors generate a keyset for a result set, the query optimizer estimates the number of rows that will be returned for that result set.
游标为某个结果集生成键集时,查询优化器将估计为该结果集返回的行数。
Static cursors do not reflect updates , deletes, or inserts that are made to underlying data while the cursor is open .
静态游标不反映在打开游标后对基础数据所做的更新、删除或插入。
Adaptive Server Anywhere provides cursors with a variety of sensitivity characteristics.
AdaptiveServerAnywhere为游标提供了各种敏感性特性。
When a transaction rolls back to a savepoint, all non-hold cursors opened after that savepoint are closed.
当一个事务回滚到某个保存点时,在保存点之后打开的所有未被占用的指针将被关闭。
通过关联(correlation),SQL表函数允许以一种更高效的方式实现迭代,而不是使用游标。
启用该参数时,游标并不真正关闭,直到有下一个数据库请求为止。
它记录了你看到的一切在电脑屏幕上,包括整个桌面,窗口,菜单,光标-甚至有声录像。
Software Description: About Native Maiden, The theme features a portrait of a native female with icons, key cursors and sounds.
主题包括图标,光标和声音,一起特别推出印地安人女子的人像。
No cursors have been opened, no rows qualified for the last opened cursor, or the last-opened cursor is closed or deallocated.
没有已打开的游标,对于上一个打开的游标没有符合条件的行,或上一个打开的游标已被关闭或被释放。
DECLARE语句,该语句可用于定义函数局部的数据变量和游标。
决定数据库游标是否用于SELECT语句。
You may want to check the settings in the game to see if there is an option to enable hardware mouse cursors (HW cursors).
你可能想检查设置在游戏中,看看是否有一个选择,使硬件滑鼠游标(硬件光标)。
1·There are no differences in the declarations of local variables, cursors, temporary tables, but on both platforms the order of declaration is important.
在局部变量、游标和临时表的声明方面,两种平台没什么差别,但在这两种平台上,声明的顺序却很重要。
2·Because these resources, like the connection or any database cursors, can be managed outside the JVM running your database application code, your application must close them explicitly.
因为可以在运行数据库应用程序代码的JVM之外管理连接或数据库游标这样的资源,所以应用程序必须显式地关闭这些资源。
3·In contrast, IDS SPL supports a similar cursor looping statement but does not allow cursors to be explicitly declared, opened, or closed.
相反,虽然IDS SPL也支持类似的游标循环语句,但是不允许显式地声明、打开或关闭游标。
4·This means the database server has run out of dynamic cursors.
这意味着数据库服务器已用尽动态游标。
5·However, in some cases, you will need to read cursors both forward and backward, in which case you should use scrollable cursor.
但某些情况下,您需要游标既能向前又能向后,此时需要使用可滚动游标。