To avoid having to read the data rows , if the requested columns are all contained within the index entries 如果被请求的列都包含在索引项中，则可以避免不得不读数据行的情况。
On an anonymous pipe will block until all bytes are written , meaning if the buffer has unread data in it , the 将阻止，直到写入所有字节为止，这意味着缓冲区中只要存在未读数据，
Exception is thrown when there is an attempt to change the value of a read - only data column 关于异常的疑难解答： system . data . readonlyexception试图更改只读数据列的值时，将引发
In contrast , for a read - only database , the log cannot be rebuilt because the primary file cannot be updated 相比之下，对于只读数据库，由于主文件不能更新，将不能重新生成日志。
Can result in the same address being assigned to different functions or read only data members const variables compiled with 可导致相同的地址分配到不同的函数或只读数据成员（用
Meaning that the method or function performs read - only data - access operations , such as executing select statements （意味着方法或函数执行只读数据访问操作，如执行select语句） 。
The following dbcc commands operate on an internal read - only database snapshot that sql server database engine creates 以下dbcc命令对sql server数据库引擎创建的内部只读数据库快照执行操作。
You can create a database for read - only purposes that can then be distributed through removable media such as cd - rom 您可以创建一个只读数据库，然后通过可移动媒体（例如cd - rom ）分发该数据库。
For a read - only database , the log file or files must be available at the location specified in the primary file of the database 对于只读数据库，日志文件在数据库主文件中指定的位置上必须可用。
Half of the data in your subscription is a list of customers , stored as read - only data . the other half is order data 在您的订阅中，有一半的数据是以只读数据形式存储的客户列表，另一半是订购数据。
