If you have very frequent data modification operations and less queries, you should focus on good write performance.
如果有很多数据修改操作，而查询较少，那么应该将注意力放在好的写性能上。
When there is any data modification to the user tables, the catalog statistics tables are not automatically modified.
当用户表中发生数据修改时，目录统计信息表不会自动被修改。
The first data modification technique discussed was data deletion, which is performed by using the SQL DELETE statement.
讨论的第一种数据修改技术是数据删除，这通过使用SQLdelete语句来执行。
With all this background information at hand, let's look at building an example application that utilizes the YQL data modification capabilities.
在掌握了所有这些背景信息之后，让我们来看一下如何使用YQL数据修改功能来构建一个示例应用程序。
Of course, all that data modification isn't of much value if you can't easily convert back into the textual format mentioned in this article. That's also trivial in JavaScript
当然，如果不能轻松地将对象转换回本文提到的文本格式，那么所有数据修改都没有太大的价值。
DBMS automatically fires the trigger as a result of a data modification to the associated table.
当关联的表发生改变时，DBMS自动激发触发器。
In OLTP systems, end users routinely issue individual data modification statements to the database.
在OLTP系统中，最终用户日常性地向数据库发布个人数据更新的语句。
A data warehouse is updated on a regular basis by the ETL process (run nightly or weekly) using bulk data modification techniques.
数据仓库定期地通过ETL过程(每个晚上或者每周运行)来更新，ETL过程使用大块的数据更新技术。
The result demonstrates that the measurement accuracy and the anti-jamming ability can be increased by using the data modification.
测试结果表明：利用数据平滑处理方法，可以提高传感器测量准确度和抗干扰能力。
Based on the functions of data modification, filtration and sorting, the display and print of any graph, curve and log are realized.
对任意定义的数据，在完成修改、过滤、排序等功能的基础上，还可实现任意复杂的图形曲线、报表显示与打印。
The first data-modification technique this article will address is deleting data.
本文将介绍的第一个数据修改技术是删除数据。
By default, the AUTOCOMMIT mode is on, and any data-modification process causes a commit operation to be performed - which, by default, closes any open cursors.
默认情况下，AUTOCOMMIT处于启用状态，并且所有数据修改过程都将导致执行一次提交操作——该操作在默认情况下将关闭所有打开的游标。
By default, the AUTOCOMMIT mode is on, and any data-modification process causes a commit operation to be performed - which, by default, closes any open cursors.
默认情况下，AUTOCOMMIT处于启用状态，并且所有数据修改过程都将导致执行一次提交操作——该操作在默认情况下将关闭所有打开的游标。
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