isolation-level

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Defining transaction isolation in BIRT

My BIRT report retrieves data using a SQL query (JDBC datasource). My SQL Server 2005 database is set to use snapshot transaction isolation.[详细]

2022-12-29 07:17 分类：问答
Read committed Snapshot VS Snapshot Isolation Level

Could some one please help me understand when to use SNAPSHOT isolati开发者_Go百科on level over READ COMMITTED SNAPSHOT in SQL Server?[详细]

2022-12-28 21:21 分类：问答
Oracle transaction read-consistency?

I have a problem understanding read consistency in database (Oracle). Suppose I am manager of a bank . A customer has got a lock (which I don\'t know) and is doing some updating.Now after 开发者_运维[详细]

2022-12-27 20:21 分类：问答
Why use a READ UNCOMMITTED isolation level?

In plain English, what are the disadvantages and advantages of using SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED[详细]

2022-12-23 14:56 分类：问答
Why better isolation level means better performance in SQL Server

When measuring performance on my query I came up with a dependency between isolation level and elapsed time that was surprising to me[详细]

2022-12-23 04:30 分类：问答
TransactionScope and Connection Pooling

I\'m trying to get a handle on whether we have a problem in our application with database connections using incorrect IsolationLevels.Our application is a .Net 3.5 database app using SQL Server 2005.[详细]

2022-12-22 20:09 分类：问答
Do DB locks require transactions?

Is it true that \"Every statement (select/insert/delete/update) has an isolation level regardless of transactions\"?[详细]

2022-12-19 10:55 分类：问答
TRANSACTION ISOLATION LEVEL REPEATABLE READ in SQL Server

What are the risks or performance degradation when using SET TRANSACTION ISOLATION LEVEL REPEATABLE READ?[详细]

2022-12-18 13:42 分类：问答
Set isolation w/o an ifxtransaction?

I\'m trying to execute a simple select query using IfxCommand. I would like to set isolation to dirty read, but I have only found examples of setting isolation level in the context of an IfxTransactio[详细]

2022-12-18 05:07 分类：问答
READ_COMMITTED_SNAPSHOT on SQL Server 2005 in 2000 Compatability Mode?

While investigating a problem I believed to be related to lock escalation and thinking that READ_COMMITTED_SNAPSHOT would be the solution, I checked whether it was already enabled.To my surprise, the[详细]

2022-12-15 22:14 分类：问答