If 30 minutes have passed log them out update table LoggedIn to false.
如果30分钟过去了日志他们更新表中登陆的假。
In the next section, we will modify the content of the resulting XML file, then update the database table to reflect the XML content change.
在下一章节中，我们将修改结果XML文件的内容，然后通过更新数据库表来反映XML内容的改变。
The naive approach USES a cursor to scan the table and execute a positioned update statement for each row.
初级的方法是使用一个游标对表进行扫描，并为每一行执行一个定位的更新语句。
This transaction can only be called successful if both SQL statements were able to update the table successfully.
只有在两条 SQL语句都能够成功更新表的情况下，事务才会得到成功调用。
We add a trigger to database so that every update to a record in the table increments the revision counter.
向数据库添加触发器，以便对该表中的记录的每个更新都会导致修订计数器递增。
If you hold CONTROL privilege on a table, you can update values that pertain to that table, but if you hold explicit DBADM authority on the database, you can change any updatable column.
如果在某个表上拥有CONTROL权限，那么就可以更新属于该表的值，但是如果拥有数据库上显式的DBADM授权的话，那么您可以更新任何可更新的列。
This method takes three parameters, the primary key, the action performed on the table (create, update, delete) and a result set.
此方法具有三个参数，主键、对表执行的操作(创建、更新、删除)和结果集。
This means that you should either load your data prior to creating your index or update the statistics on your table after your data is loaded.
这意味着您应该在创建索引之前加载数据，或者在加载数据之后更新表的统计信息。
In our first improvement to the benchmark, let us add an index on the bills table and update statistics for the table.
在我们对基准的第一个改进中，我们向账单表增加索引，并为表更新统计信息。
A database trigger is program residing in the database that runs when an event, such as an update, occurs on a table in the database.
数据库触发器是驻留在数据库中的程序，当数据库中的表发生更新之类的事件时会运行该触发器。
When a table holds a Z lock, no concurrent application can read or update data in that table.
当表持有z锁时，任何并发应用程序都不能读取和更新该表中的数据。
The database server automatically issues the prepare statement to update any prepared objects that reference the table.
数据库服务器自动发出PREPARE命令，更新引用该表的任何编译过的对象。
When a table holds an IX lock, the lock owner and concurrent applications can read and update data in that table.
当表持有IX锁时，锁拥有者和并发应用程序可以读和更新该表中的数据。
This way you can immediately see and verify the effect of the update and won't ruin the data in your table if an update does something unexpected.
按照这种方式，可以马上看到和检验更新的效果，而且如果更新出现错误，也不会损坏表中的数据。
In this scenario, you could use a heterogeneous update to update the ORDER and ORDER_ITEMS table in a single database operation.
在这个场景中，可以使用异构更新在一个数据库操作中更新order和order_items表。
Should the update to the ACCT table fail, there would be no mechanism to roll back the insert to the TRADE table, resulting in inconsistent data in the database.
若acct表更新失败，没有任何机制可以回滚到对trade表的更新操作，从而造成数据库中的数据不一致。
Notice that a row used in an update does not have to contain all of the columns in the table; only those included will be used to update the table.
注意，用于更新的行并不必须包含表中所有的列；只包含那些将用于更新该表的列。
After you have the object in XML format, you can issue a regular SQL update statement to update the record in the table EMPLOYEE.
把对象转换为xml格式之后，可以通过执行常规的SQL更新语句更新employee表中的记录。
In the case of a database, for example, a trigger may be used to update a change tracking table immediately after a row is updated.
以数据库为例，可能会使用触发器在更新行之后立即更新更改跟踪表。
End-to-end latency is the time it takes from the point in time when an update occurs at a source table until that update is applied to the target.
端到端延时是指从源表发生更新到此更新应用到目标表所经历的时间。
To illustrate the new DB2 9.5 XML update functionality, the sample table and data defined by the following CREATE TABLE and INSERT statements are used.
为了解释新的DB2 9.5XML更新功能，我们使用下面的CREATETABLE和INSERT语句定义示例表和数据。
Update the words table with new counts, adding rows for new words and updating rows for words already there.
用新统计更新words表，添加新单词行并更新已经在该表中的单词行。
Indicating that he does not have permission to update that table, he quickly logs off the server and leaves, thinking that nobody saw anything.
这条消息表明他没有更新那个表的权限，于是他很快就登出服务器，并离开了，自以为没有人看到他做的事。
Indicating that he does not have permission to update that table, he quickly logs off the server and leaves, thinking that nobody will notice anything.
表明他没有更新那个表的许可，他快速退出服务器，并离开现场，自以为没有人注意到这一切。
Then, update the application's routing table and set up a catch-all route for the new XML output type (Listing 12).
然后，更新这个应用程序的路由表并为新的XML输出类型建立一个“全部捕获”路由(见清单12)。
In the sample code, we have created three Triggers on the customer table for Insert, Update, and Delete.
在示例代码中，我们在customer表上创建了三个触发器，分别用于Insert、Update和Delete操作。
Also update the application's routing table to add a new route for this Action, as in Listing 1.
并且更新应用程序的路由表，为这个Action添加一个新的路由，如清单1所示。
As an example, the widget might have a Web table to update with the data representing rows in a database server.
作为示例，小部件可能有一个web表需要用数据库服务器中表示各行的数据更新。
Once the update is completed, the table is unlocked and this transaction is logged with logger().
一旦更新完成，解锁这个表并使用logger()记录这个事务。
To update the subscribedfeeds table, you need to know the username for the logged-in user, so you grab that from the session.
为更新subscribedfeeds表，我们需要知道登录用户的username，所以我们要从会话中获取该信息。
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