总的来说，这四行语句告诉devfsd，当设备注册时，创建兼容设备(如果有的话)，当解除设备注册时，删除兼容设备。
Taken as a whole, these four lines instruct devfsd to create compatibility devices (if any) when a device is registered, and to remove the compatibility devices when the device is unregistered.
第5行使用eval语句，它是动态语言的最强大的特性之一。
Line 5 USES the eval statement, which is one of the most powerful features of dynamic languages.
这些工作由EmitFragment函数完成，其中包含了大约250行的switch语句。
The bulk of the work is done by the 250 line switch statement that makes up the EmitFragment function.
如果没有启用MRF，准备fetch语句时将不包含行集定位。
If MRF is not enabled, FETCH statements are prepared without rowset positioning.
将重新准备fetch语句，并且不包含行集定位。
The fetch statement will be re-prepared without rowset positioning.
最后，在第十八行的断言语句中，决定了这个测试用例的成功与失败。
Lastly, in line 18 an assertion statement is issued to determine the success or failure of a test case.
例如，有些数据库在select语句上提供了特殊的语法，声明用来更新select语句所选中的行。
For example, some databases provide special syntax on the select statements to declare the intentions of updating the rows selected by the select statement.
在某种程度上，SQLupdate语句是SQLINSERT和delete语句的联合，因为您必须选择要修改的行，还必须指定如何修改它们。
At some level, the SQL UPDATE statement is the union of the SQL INSERT and DELETE statements, because you must select rows to modify as well as specify how to modify them.
第219- 226行代码包含了分布式事务(Distributed Transaction)中为相应分支所使用的真正sql语句。
The code lines 219-226 contains the actual SQL statement used in Distributed Transaction for the corresponding branch.
每个箱子可装大约2,000张卡片，所以，他的程序有4,000张卡片或者说有4,000个语句；每张卡片一般包含一个cobol语句行。
Each box contained about 2,000 CARDS, so his program had 4,000 CARDS or 4,000 statements; each card usually contained one COBOL statement line.
清单10展示了最后一行中sql语句的输出。
Listing 10 shows the output of the SQL statement in the last line.
第8行中的打印语句也是前面讨论过的字符串格式操作。
The print statement in Line 8 is another of those string formatting operations that was discussed earlier.
存在不同类型的覆盖度量，但是绝大多数的工具会关注行覆盖，也叫做语句覆盖。
There are different types of coverage measurements, but most tools focus on line coverage, also known as statement coverage.
然而，有时候需要在一行放多个程序语句，例如初始化变量时。
Sometimes, however, it's desirable to place multiple program statements on a single line -- when you're initializing variables, for example.
注意，为了便于阅读，我们已将三个内核定义语句分割为多个行。
Note that we have split the three kernel definition statements into multiple lines for readability.
在触发器、动态合成语句、标量、表、行函数和方法中不能调用具有访问级别MODIFIESSQLDATA的联邦过程。
Federated procedures with access level MODIFIES SQL DATA cannot be invoked inside triggers, dynamic compound statements, scalar, table, row functions, and methods.
通过使用竖线做分隔符，可以将两个或更多个语句放在单个行中。
You can also put two or more statements on a single line by separating them with a vertical bar.
测试的第二个查询使用了一条将返回包含数千行数据的结果集的sql语句。
The second query evaluated USES an SQL statement that returns thousands of result set rows.
FOR 语句用来遍历一个确定的结果集中的行。
The FOR statement is used to iterate over rows of a defined result set.
这个select语句对于每个地区返回一行，地区名由name列表示。
The SELECT statement allows us to return one row per region identified by the name column.
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.
SQLdelete语句允许通过where子句识别(或限制)要删除的行。
The SQL delete statement enables you to identify (or restrict) the rows you want to delete through a WHERE clause.
如果数据是对数据库行发出delete命令，请确保在语句最后添加limit1，以尽可能减少损失。
If the data is issuing a delete command on a database row, make sure that you add limit 1 to the end of your statement to minimize damage.
delete语句从指定表中删除满足可选where子句的所有行。
The delete statement deletes all rows from the specified table that satisfy an optional WHERE clause.
清单1中的第一行显示了创建名为phonenumbers类型的创建类型语句。
Line 1 in Listing 1 shows a create type statement that creates a type named phonenumbers.
在updatecatalog函数中，获取表单字段值，并创建一条sql语句，以便将一行添加到数据库表Catalog中。
In the updateCatalog function, retrieve the form field values and create an SQL statement to add a row to database table Catalog.
接下来，构造SQL命令来更新目标行，方法为使用带有WHERECURRENTOF子句的SQLupdate语句。
Next, you construct an SQL command to update the target row by using an SQL update statement, with a WHERE CURRENT OF clause.
UPDATE语句的set子句用一个新文档替换给定行中的现有文档。
The set clause of the UPDATE statement replaces the existing document in a given row with a new document.
当FETCH游标语句失败并且没有找到另一个要检索的行，SQLSUCCESS的值被设置为 0 并且WHILE LOOP结束。
When the FETCH cursor statement fails and does not find another row to retrieve, the value of SQLSUCCESS is set to 0 and the WHILE LOOP ends.
如果在sql语句的select子句的XMLQUERY函数中使用xml谓词，则这些谓词不会从结果集中排除任何行，因此不能使用索引。
If you use XML predicates in the XMLQUERY function in the select clause of an SQL statement, these predicates do not eliminate any rows from the result set and therefore cannot use an index.
应用推荐