在数据库提交时,会有一些小型(8K)的内存页被同步到数据库中,而因为应用程序使用的是对象引用,内存页面可能会从持久化存储中错误地换入。 由于一般来说对象都会聚集在同一个内存页中,在页面被换入的时候很少会有分页动作的发生。
Since objects tend to aggregate onto the same page, there is little paging going on once a page is brought in.
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.
本例中的数据库只包含一个表来存储测试序列,因为转换引用信息被嵌入到php脚本中。
The database in this example contains only one table to store the test sequence, because the conversion reference information is embedded in the PHP script.
在这个例子中,需要两个字母作为数据库中两张表的引用,因此它们各自被分配了一个星号。
Two letters are assigned stars because those are references to the two tables needed for this example.
方法依据《中国生物医学期刊引文数据库》(CMCI),采用文献计量学方法对该刊1999—2004年载文被CMCI来源期刊引用的情况进行统计分析及评价。
Methods With the database of Chinese Medical citation Index (CMCI), the citation analysis was used to analyze the distribution of the cited original articles published in the CJP from 1999 to 2004.
利用清华同方全文数据库统计了《河北理工学院学报》发表的学术论文1997 ~ 2004年被期刊引用状况。
This article studies the circumstance that the academic papers issued in journal of Hebei institute of technology were cited by periodic journals from 1997 to 2004.
利用清华同方全文数据库统计了《河北理工学院学报》发表的学术论文1997 ~ 2004年被期刊引用状况。
This article studies the circumstance that the academic papers issued in journal of Hebei institute of technology were cited by periodic journals from 1997 to 2004.
应用推荐