单字符的command是要对指定行执行的操作。
The single-character command is the action to perform on the specified lines.
定义了与数据库表对应的类之后，SQLObject将对表行的操作表示为对类及其实例的操作。
After you've defined a class that corresponds to a database table, SQLObject represents operations on the rows of that table as operations on the class and its instances.
您可以在编辑操作中指定任何数量的行，并且这些操作可以在一个序列中进行组合和指定。
You can specify any number of lines in an editing operation, and these operations can be combined and given in a series.
过去那些高利润的操作系统和桌面软件将在未来渐行渐远。
The old world of high margin operating systems and desktop applications is simply not very relevant to this new world.
除了操作单独的行外，sed还可以操作一个行范围。
In addition to operating on individual lines, sed can operate on a range of lines.
基本上指需要两行代码来访问和调用Web服务的操作。
Basically, only two lines of code are required to access and invoke a web service's operation.
输出选择允许您以screen格式unload格式将选择的行写到操作系统文件。
The Output selection enables you to write selected rows to an operating system file using either Screen format or Unload format.
在这个例子中，如果目标和源数据表有匹配的行，就实行更新操作。
In this example, and update occurs if the target and source have matching row.
因为该select语句的结果集中只期望一行，所以表扫描在这里被认为是代价较高的操作。
Since only one row is expected in the result set from this SELECT statement, the table scan here is considered an expensive operation.
如果我们希望设计一个提供数据库更新功能的服务，则可以提供与清单8中的第2行和第4行的检索和写入操作对应的操作。
If we wish to design a service offering database update capability, we could offer operations corresponding to the retrieve and write operations in lines 2 and 4 in Listing 8.
在决策表中，行和列表示不同的条件，而结果操作由它们的交点来定义。
In decision tables, rows and columns represent different conditions and the resulting action is defined by their intersections.
在构建你的操作系统的时候，你将会编写上百成千行的代码。
During your code building you will write hundreds, even thousands, of lines of code.
对于每一个行id,fetch操作符将读取表中相应的行。
For each row ID, the FETCH operator reads the corresponding row from the table.
因此，如果一个事务有多个操作，要么操作对应的所有行写入CCD，要么一个也不出现。
Therefore, if a transaction has multiple operations, either all the rows corresponding to the operations will be written to the CCD, or none will appear.
对于mdc表，选择BLOCKINSERT可以提高INSERT操作的性能，因为使用的是块级的锁，避免了为INSERT操作使用行锁。
For MDC tables, the selection of BLOCKINSERT may improve the performance of INSERT operations by locking at the block level and avoiding row locks for INSERT operations.
处理文本文件通常包括读取信息单元(通常叫做字符或行)，然后对刚读取的单元执行适当操作。
Processing a text file often consists of sequentially reading a unit of information (typically either a character or a line) and doing something in response to the unit you've just read.
给定一个匹配的索引，通过一个单独的取索引操作就可以得到要检索的行。
Given a matching index, a single index fetch will pin down the row to be retrieved.
对于所获取的每一行，XSCAN操作符将处理相应的XML文档。
For each row fetched, the XSCAN operator processes the corresponding XML document.
可以将当前行想象成一个指针，在这个例子中，该指针固定在接受该操作的行。
The current row can be thought of as a pointer, which in this case is fixed on the row that received the action.
如果查询中的远程操作在返回行之前需要进行大量的处理，那么就可以获得最大的性能益处。
The benefit is greatest for queries that contain remote operations that require significant processing before they begin to return rows.
远程服务器到联邦服务器的行移动及本地HSJOIN操作符与union操作符之间行移动仍然是串行的。
Row movement from the remote servers back to the federated server, as well as between the local HSJOIN operators and the UNION operator is serialized.
R PG程序更新通过键访问的行之前，必须执行一个读操作，以便锁定该行，进行更新。
Before an RPG program updates a row accessed by a key it must perform a read operation to lock the row for update intent.
注意，可以组合使用多个替换操作符，见脚本的最后一行。
Note that you can combine several substitution operators, as shown in the last line of the script.
第17行说明了向操作发送哪些的名称和值。
Line 17 explains what name and value pair to send to the action.
关于R的 “所有东西都是向量”方式，容易引起混乱的一点是行操作和列操作可能不符合直觉。
One thing that can be confusing about R's "everything is a vector" approach is that row-wise and column-wise operations may not adhere to your intuition.
当您在游标内找到了所需行后，您可以执行相应的UPDATE操作。
When you've found the desired row within your cursor, you can issue the appropriate UPDATE operation.
您可能认为，针对特定输入，只有方法中的每一行都操作正确，方法才会生成预期结果。
You tend to assume that each line of code in the method must be operating properly in order for the method to produce the expected result, given a certain input.
第18行到第23行为每个操作系统装入相应的SWTJAR文件。
Lines 18-23 load the appropriate SWT JAR for each operating system.
切换矩阵的行与列的操作可以帮助您快速地更改矩阵视图。
An operation to switch rows and columns of a matrix helps you quickly change the matrix view.
切换矩阵的行与列的操作可以帮助您快速地更改矩阵视图。
An operation to switch rows and columns of a matrix helps you quickly change the matrix view.
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