它是一个内存数据库。
One alternative is to use an in-memory database for your tests.
另一个可选的方式是为测试使用内存数据库。
The most common in-memory database index strategy is called T-tree.
最常见的内存中数据库索引策略是T -树。
This is not just some transient in-memory database; it is persisted to disk.
这不仅仅是临时的内存中的数据库；而是永久保存在磁盘中。
Apache's Derby database is a small, in-memory database that's ideal for use as an embedded database.
Apache的Derby数据库是一个小型的内存中数据库，它是用作嵌入式数据库的理想选择。
The code was tested using an in-memory database called HSQLDB, and this product includes a simple GUI tool.
代码是使用称为HSQLDB的内存数据库测试的，这种产品包含一个简单的GUI工具。
An in-memory database caching capability ACTS as a front end to a back-end database in these tiered solutions.
在这些分层解决方案中，有一个内存中的数据库缓存功能，作为后端数据库的前端。
ObjectGrid can be used simply as an in-memory database, or it can be used to distribute data across a network.
ObjectGrid可以像使用内存内数据库一样使用，也可以使用其将数据分布在网络上。
One of the most noticeable differences of an in-memory database system is the absence of large data block structures.
内存中数据库系统一个最值得注意的不同之处在于没有大数据块结构。
The trade-off is that connecting to an in-memory database will take little more unit test time, but there will be less code and development effort.
虽然连接到内存数据库会多花点时间，但代码相对要少很多，开发代价也小。
But, while this application had no formal data model, maybe we could "borrow one" by streaming the data into an in-memory database and querying against that.
但是，虽然这个应用程序缺少正式数据模型，但也许我们可以将数据存储到内存中的数据库，并凭借该数据库进行查询，通过这种方式借用一个数据模型。
SQlite is an ideal choice for experimentation with SQLAlchemy, and you can choose to either use an in-memory database, in which your line would look like this instead.
SQlite是试验sQLAlchemy的理想选择，并且您还可以选择使用内存数据库，在这种情况下，您的代码行应如下所示。
Regarding the JPA best practices, he asked the developers to consider the techniques like using an in-memory database (like HSQL DB) to eliminate mock DAO implementations.
关于JPA的最佳实践，他希望开发者能考虑使用内存数据库(如hsqlDB)而不要再用mockDAO实现。
As the name implies, an in-memory database resides entirely in main memory rather than on disk, making data access an order of magnitude faster than with conventional, disk-based databases.
顾名思义，内存中数据库完全驻留在主存中，而不是磁盘上，这使得数据访问比传统的基于磁盘的数据块要快一个数量级。
Limit: In this configuration, the limit for database Shared memory is 2gb, or 8 segments.
限制：在此配置中，对于数据库共享内存的限制是2gb或8个段。
These limits dictate how we configure each of the memory pools in the database shared memory set.
这些限制规定了我们该如何配置数据库共享内存集中的每个内存池。
The contact list is persisted in a database (or "persisted" in memory), and allows the contacts to be viewed either in a list, or individually with more detail.
联系人列表在数据库中持续(或在内存中“持续”)，并允许在列表中查看联系人或单独地、更详细地查看联系人。
A buffer pool is an area of storage in memory into which database pages (containing table rows or index entries) are temporarily read and changed.
缓冲池是内存中的一块存储区域，用于临时读入和更改数据库页(包含表行或索引项)。
Application state may be stored in memory, in files, or in a database.
应用程序状态可以存储在内存、文件或者数据库中。
Within each bus member, there is a number of messaging engines that manage runtime resources like queues and are capable of storing messages in a file, memory, or database.
每个总线成员内都有许多消息传递引擎，可以管理队列等运行时资源并能够在文件、内存或数据库内存储消息。
The respective sorted results from each slice are merged and sorted again in memory by the virtual database before being presented to the application.
每个片各自排序了的执行结果被合并，并且在内存内由虚拟数据库再次进行排序，之后才会呈现给此应用程序。
The full green boxes mean the memory pools are allocated in full when the database is started. Otherwise, only partial amount of memory is allocated.
完整的绿色方框意味着，在数据库启动的时候，该内存池是完全分配的，否则，就只分配部分的内存。
The slot manager sets up its database in a region of Shared memory.
槽管理器在共享内存区域设置其数据库。
The full green boxes in the figure below mean the memory pools are allocated in full when the database is started. Otherwise, only partial amounts of memory is allocated.
图中的完整绿色方框意味着，在数据库启动的时候，该内存池是完全分配的，否则，就只分配部分的内存。
Of course, a little extra processing would be needed to combine dictionaries in memory after reading each database file, but that should still be cheaper than reading all of the files.
当然，读取每个数据库文件后在内存中合并词典需要额外的处理，但这也比读取所有文件的消耗小得多。
The scan might take 592 CPU instructions or more if the cookbook is not already in database memory, and it might take five seconds to complete.
扫描可能执行592条CPU指令，如果烹调书还没有放在数据库内存中，指令可能更多；扫描可能会花费5秒才能完成。
Performance of database calls, when compared to in-memory operations, is very slow.
与内存中的操作相比较，数据库调用的性能是非常低的。
Neither optimizer will hit the database until it has exhausted its in-memory group values. The above example hits the database every 5 identifier values.
直到内存组中的值耗尽后，两个优化器才会去访问数据库，上面的例子每5个标识值符访问一次数据库。
The ability to mock out a database table in-memory is a huge time saver, especially when you consider how long it takes to start up an actual database.
在内存中模拟数据库表可以节省大量时间，尤其是在启动实际数据库需要很长时间时。
By default, JKE Furniture always USES 4 GBs of memory in its database servers.
默认条件下，JKE Furniture在数据库服务器中使用4GBs的内存。
应用推荐