读操作
- 网络read;read operation;Reading
![读操作](../cache/1399459.jpg)
-
这样可以防止更新基础表,但允许读操作(如select语句)。
This prevents updates to the underlying table but allows read operations , such as select statements .
-
使用键执行随机读操作的最常见RPG方法是CHAIN操作。
The most common RPG method for performing a random read using a key is the CHAIN operation .
-
算法所需的运算只有RAM的读操作与乘法、加法运算。
All the operations needed are addition , multiplication and RAM reading .
-
在某些情况下,如果读操作远远大于写操作,volatile变量还可以提供优于锁的性能优势。
In situations where reads greatly outnumber writes , volatile variables may also provide a performance advantage over locking .
-
就是说,在目前大多数的处理器架构上,volatile读操作开销非常低&几乎和非volatile读操作一样。
That said , on most current processor architectures , volatile reads are cheap & nearly as cheap as nonvolatile reads .
-
在成功更新后,控制器应该重定向到执行“读操作”的URL。
After a successful update operation , the controller should redirect to a URL that does a read operation .
-
由于SELECTINTO返回单个行,因此它不能用于其他RPG读操作。
Because the SELECT INTO returns a single row it cannot be used for other RPG read operations .
-
如果读操作的次数要远远超过写操作,与锁相比,volatile变量通常能够减少同步的性能开销。
In cases where reads greatly outnumber writes , volatile variables can often reduce the performance cost of synchronization compared to locking .
-
保密位可用来防止软件被盗用和并行编程模式下未被授权团体对FLASH的读操作。
The Security Bit protects against SOFTWARE piracy and prevents the contents of the FLASH from being read by unauthorized parties in Parallel Programmer Mode .
-
然而,如果不涉及XML解析,那么文件系统缓存能够帮助提高对CLOB列的读操作。
However , file system caching can help read operations on CLOB columns if no XML parsing is involved .
-
然而,如果读操作远远超过写操作,您可以结合使用内部锁和volatile变量来减少公共代码路径的开销。
However , if reads greatly outnumber modifications , you can combine intrinsic locking and volatile variables to reduce the cost on the common code path .
-
在研究PCIAD双向总线及PCI总线读操作时序特性的基础上,提出了基于分时复用技术实现PCIAD总线再复用的模型。
This paper proposes a model of reusing PCI AD bus based on the study of the PCI AD bi-direction bus and its read operation timing using the time-sharing reuse technology .
-
DPF对于以读操作为主的工作负载很有用,包括数据仓库环境中常见的工作负载。
DPF can be useful for read-intensive workloads , including those common to data warehouse environments .
-
试图对正在执行读操作的ZZ进行写。
An attempt was made to write to the reading ZZ .
-
通过定义主从机读操作的两次握手命令-应答帧格式及其参数改写子VI实现数据采集。
Data acquisition was realized by defined two times of handshake order or response frame format and VI of read-write operation between host and slave computers .
-
我在这里假设这个读操作(作为API层的入口点)不会反过来对数据库调用写操作。
I am making the assumption here that the read operation ( as an entry point to the API layer ) is not in turn invoking write operations on the database .
-
然而,您可以在读操作中使用volatile确保当前值的可见性,因此可以使用锁进行所有变化的操作,使用volatile进行只读操作。
However , you can use volatile to ensure the visibility of the current value when reading , so you use locking for all mutative operations and volatile for read-only operations .
-
LDAP是一种轻量级的目录访问协议,它对数据的读操作进行了优化,非常适合用于像网格服务这种频繁读取数据的资源管理系统。
LDAP is a kind of light directory access protocol , which optimizes the data-read operation . It is suitable for the resource management in grid service that requires frequent reading operations .
-
RPG程序更新通过键访问的行之前,必须执行一个读操作,以便锁定该行,进行更新。
Before an RPG program updates a row accessed by a key it must perform a read operation to lock the row for update intent .
-
对于顺序和随机写操作,以及顺序读操作来说,它的性能非常优秀,根据Google的性能基准测试,它能在某些测试项目中得分领先SQLite两个数量级。
The result is good performance for sequential and random writes , and sequential reads , beating SQLite by two orders of magnitude in some tests , according to a Google performance benchmark .
-
为了在FPGA上实现简化的PCI接口控制器采用模块设计的方法,将PCI接口逻辑分成四个模块,重点介绍了状态机模块的设计,并给出了存储器读操作的仿真波形。
In order to realize a simply PCI Target interface on FPGA , building block design method was introduced . The PCI interface logic was divided into four modules . And the designing of state-machine module was emphatic introduced .
-
HotStandby还附带一个好处,即负载平衡读操作。
HotStandby also has a beneficial side effect of load balancing read operations .
-
rw参数,使用它指明预抓取数据是为了执行读操作,还是执行写操作
The rw parameter , which you use to indicate whether the data is being pulled in for Read or preparing for a Write operation
-
OpenLDAP软件和包提供了创建目录信息树(一个主要进行读操作的数据库)的工具。
The OpenLDAP software and the packages it interfaces with provide tools to create a Directory Information Tree , a read-mostly database .
-
如果应用程序对某个文件进行写操作(而不是读操作),那么永久存储分页将是经过修改的,并且AIX必须在释放这些分页之前将其刷新到磁盘。
If the application had been doing writes to the file instead of reads , the permanent storage pages would be " modified ," and AIX would have to flush the pages to disk before releasing the pages .
-
按照我的理解,Azul硬件的关键优势之一是它直接支持写操作和读操作屏障以获得低GC停顿。
InfoQ : As I understand it a key advantage of Azul 's hardware is that it has direct support for write and read barriers which allows you to obtain low GC pauses .
-
当客户机完成读操作时,它以LAYOUTRETURN表示操作结束。
When the client is finished reading , it expresses the end of the operation with LAYOUTRETURN .
-
因此,应提供足够的缓冲池空间来支持索引读操作。
Thus , provide sufficient buffer pool space to support index reads .
-
读操作期间发生了磁盘错误。
A disk error has occurred during a read operation .
-
如果为真,只有读操作可以进行。
If true , only reads may be executed against the storage .