在股价时序数据不存在噪音的假设前提下，利用相空间重构技术对中国股票市场的混沌与分形特征进行实证研究。
Under the hypothesis of empty of noise, utilizing technology of phase-space reconstruction to empirically study the chaos and fractal feature of China stock market.
清单1给出一个简单的UDF，它处理对象的基线数据不存在或者发生计数器翻转的情况(这种情况不太可能出现，但是能够处理)。
Listing 1 shows a simple UDF for handling cases where baseline data for an object does not exist, or where counter rollover has occurred (an unlikely scenario, but it is handled).
问题是，对于许多想要设计系统来应对这些挑战的研究人员来说，实验所需的大量数据集根本不存在。
The trouble is, for many of the researchers who'd like to design systems to address these challenges, massive datasets for experimentation just don't exist.
如果恢复的任何对象引用另一个模式中的对象，而被引用的对象在目标数据库中不存在，那么这个过程将失败。
If any object to be restored references an object in another schema, and this object does not exist in the target database, the procedure will fail.
第一个命令创建数据库(如果数据库还不存在的话)和一个表，这个表包含两列——期号和标题。
The first command creates the database (if it does not exist already) as well as a table with two columns, an issue number, and a title.
可靠的毕业率和收入的数据并不存在。
一方面，没有显式地标明丢失的数据，而只是通过不存在的行和时间戳进行了简单的标记。
For one thing, missing data is not explicitly indicated, but is simply marked by an absent line and time stamp.
这些类是具有无等待端的队列，在这里，一个NHRT可以请求读或写某些数据(具体取决于类)，而不存在阻塞的风险。
These are queues that have a wait free side where an NHRT can request to read or write some data (depending on the class) without the danger of blocking.
如果一个数据集中的维度不存在另一个数据集中，那么该维度将直接添加到虚拟数据集中，而不进行合并。
If a dimension name from a depending cube is not found in the other cube, that dimension is simply added to the virtual cube without any merging.
锁定的另一个特例是需要锁定当前数据库行中不存在的项目。
Another special case of locking is the need to lock something where currently no database row exists.
如果函数没有静态数据，那么也就不存在返回静态数据的引用的问题。
There is no question of returning a reference to static data if the function doesn't have one.
如果该数据库不存在，则创建一个空数据库。
If the database does not exist, an empty database is created.
如果基线不存在，计数器值相对于数据库激活时。
If no baseline exists, counters are relative to database activation.
在启动服务器之后，总是会检查数据库是否存在；如果不存在，就会创建它们。
When the server starts up, it always checks to see whether its databases exist, and if they don't, it creates them.
事实上，面向文档的数据库中根本不存在表、行、列或关系。
In fact, there are no tables, rows, columns or relationships in a document-oriented database at all.
试图使用片段或者试图从不存在的键访问数据就会抛出异常，指出相关的错误。
Trying to use slicing or trying to access data from nonexistent keys throws exceptions, indicating the relevant error.
在这里还可以做更多操作：例如，如果数据库中不存在表，则创建表。
More can be done here: create a table, for example, if the table doesn't exist in the database.
另一方面，软类型表示不存在相关的数据库表和相关服务。
On the other hand, a soft type implies that there is no associated database table and related services.
不存在创建HSQLDB数据库的显式方法。
最初设计数据库时，并不存在这样的表，因此这些表需要从抽象的模型中得出，表现为某些实际的数据库结构。
When somebody designed that database, they didn't have tables like this, so they moved from a model of abstract things they wanted to represent into some physical database structure.
这意味着，可以把权限和数据库中存储的信息授予不存在的用户和组帐户。
This means that privileges can be granted to non-existent user and group accounts with the information being stored in the database.
在现实世界中，并不存在单纯的以数据为中心、基于流程或策略互操作性。
In the real world, no such thing as pure data-centric, process-based, or policy interoperability exists.
或者，如果相应的数据库不存在，系统将创建一个新数据库并始终返回0(参见清单1)。
Or, if no appropriate database exists, the system creates a new one and always returns 0 (see Listing 1).
创建数据库时不存在用户临时表空间。
No user temporary table Spaces exist when a database is created.
由于只涉及单个远程数据源，启用F2PC并无必要——这里不存在多站点事务。
Since only a single remote source is involved, enabling F2PC is not necessary — there are no multi-site transactions.
它对DB 2日志存储过程执行dropPROCEDURE命令，如果在数据库中不存在日志存储过程，就会看到上面的错误。
It USES the DROP procedure command on the DB2 logging stored procedures, and if they do not yet exist in the database, you will see the error message above.
本文在样例脚本中探索了统计数据和聚合功能，因为这是C语言中不存在的。
This article explores the facilities of statistics and aggregation in the sample scripts, as these do not have counterparts in the C language.
如果您的组织、服务器或数据库不存在这些情况，那么应考虑禁用该属性，方法是选择Don ' t overwritefreespace选项。
If none of these cases applies to your organization, servers, or databases, then consider disabling this property by selecting the Don't overwrite free space option.
第二，不要苦等不存在的数据。
Second, do not fall into the trap of waiting for data that just does not exist.
第二，不要苦等不存在的数据。
Second, do not fall into the trap of waiting for data that just does not exist.
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