concurrent transaction造句
例句與造句
- Exclusive locks prevent access to a resource by concurrent transactions
排他鎖( x鎖)可以防止并發(fā)事務(wù)對(duì)資源進(jìn)行訪(fǎng)問(wèn)。 - Shared locks allow concurrent transactions to read select a resource under pessimistic concurrency control
共享鎖( s鎖)允許并發(fā)事務(wù)在封閉式并發(fā)控制(請(qǐng)參閱 - Conversely , a query holding a sch - s lock blocks a concurrent transaction that attempts to acquire a sch - m lock
相反,持有sch - s鎖的查詢(xún)將阻塞嘗試獲取sch - m鎖的并發(fā)事務(wù)。 - When one transaction holds a lock on an item , no concurrent transaction can read and / or modify this item
當(dāng)一個(gè)事務(wù)對(duì)一個(gè)數(shù)據(jù)擁有了鎖,那么其他并發(fā)事務(wù)則無(wú)法對(duì)它進(jìn)行讀或者寫(xiě)。 - Because of this , queries are blocked when a concurrent transaction holds a sch - m schema modification lock on the table
因此,當(dāng)并發(fā)事務(wù)持有表的sch - m (架構(gòu)修改)鎖時(shí),將阻塞查詢(xún)。 - It's difficult to find concurrent transaction in a sentence. 用concurrent transaction造句挺難的
- A transaction is a unit of isolation and each occurs separately and independently of concurrent transactions
事務(wù)是一個(gè)隔離單元,并發(fā)事務(wù)中的每個(gè)事務(wù)在發(fā)生時(shí)都相互分離,彼此獨(dú)立。 - Modifications made by concurrent transactions must be isolated from the modifications made by any other concurrent transactions
由并發(fā)事務(wù)所作的修改必須與任何其他并發(fā)事務(wù)所作的修改隔離。 - Imagine that two concurrent transactions both read a row , one writes to it and commits , and then the second writes to it and commits
有兩個(gè)并發(fā)事務(wù)同時(shí)讀取同一行數(shù)據(jù),然后其中一個(gè)對(duì)它進(jìn)行修改提交,而另一個(gè)也是修改提交。 - In addition , it brings forward the method to the concurrent transactions " s cooperative process , solve the underlying conflication problems
另外,在協(xié)議棧的實(shí)現(xiàn)過(guò)程中,對(duì)多個(gè)并發(fā)事務(wù)的協(xié)調(diào)處理提出了自己的解決思路,有效地克服了潛在的會(huì)話(huà)沖突問(wèn)題。 - The microsoft sql server database engine locks resources using different lock modes that determine how the resources can be accessed by concurrent transactions
Microsoft sql server數(shù)據(jù)庫(kù)引擎使用不同的鎖模式鎖定資源,這些鎖模式確定了并發(fā)事務(wù)訪(fǎng)問(wèn)資源的方式。 - If a lock escalation attempt fails because of conflicting locks held by concurrent transactions , the database engine will retry the lock escalation for each additional 1 , 250 locks acquired by the transaction
如果由于并發(fā)事務(wù)所持有的鎖沖突而導(dǎo)致鎖升級(jí)嘗試失敗,則數(shù)據(jù)庫(kù)引擎將對(duì)事務(wù)獲取的其他1 , 250個(gè)鎖重試鎖升級(jí)。 - A transaction either recognizes data in the state it was in before another concurrent transaction modified it , or it recognizes the data after the second transaction has completed , but it does not recognize an intermediate state
事務(wù)識(shí)別數(shù)據(jù)時(shí)數(shù)據(jù)所處的狀態(tài),要么是另一并發(fā)事務(wù)修改它之前的狀態(tài),要么是第二個(gè)事務(wù)修改它之后的狀態(tài),事務(wù)不會(huì)識(shí)別中間狀態(tài)的數(shù)據(jù)。 - This isolation level eliminates the possibility that one transaction could overwrite changes made by another concurrent transaction ( the second lost updates problem ) if all data access is performed in a single atomic database transaction
如果所有的數(shù)據(jù)訪(fǎng)問(wèn)都是在統(tǒng)一的原子數(shù)據(jù)庫(kù)事務(wù)中,此隔離級(jí)別將消除一個(gè)事務(wù)在另外一個(gè)并發(fā)事務(wù)過(guò)程中覆蓋數(shù)據(jù)的可能性(第二個(gè)事務(wù)更新丟失問(wèn)題) 。 - The following example uses a test scenario in which four concurrent transactions , each identified by a transaction sequence number , are running in a database that has the allow snapshot isolation and read committed snapshot options set to on
下面的示例使用具有四個(gè)并發(fā)事務(wù)的測(cè)試方案,每一個(gè)事務(wù)都由事務(wù)序列號(hào)( xsn )標(biāo)識(shí),并在allow _ snapshot _ isolation和read _ committed _ snapshot選項(xiàng)設(shè)置為on的數(shù)據(jù)庫(kù)中運(yùn)行。 - The performance and capability requirements expected for wireless location - based service can easily approach that of heavily used applications ? that is , millions of queries on a daily basis , hundreds of concurrent transactions , and millisecond query - response times
基于位置的無(wú)線(xiàn)服務(wù)的預(yù)期性能和容量很容易就能達(dá)到使用量很大的應(yīng)用程序所提出的要求? ?也就是每天進(jìn)行上百萬(wàn)次的查詢(xún),同時(shí)進(jìn)行上百個(gè)交易和毫秒級(jí)查詢(xún)響應(yīng)時(shí)間。