transaction-isolation

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What are the conditions for encountering a serialization failure in PostgreSQL?

The PostgreSQL manual page on the Serializable Isolation Level states: [Like] the Repeatable Read level, applications using this level must be prepared to retry transactions due to serialization fai[详细]

2023-04-11 15:09 分类：问答
Best way to retry a transaction with Seam & Hibernate

I\'ve got a Seam web application working with Seam & Hibernate (JDBC to SQLServer). It\'s working well, but under heavy load (stress test with JMeter), I have some LockAcquisitionException or Opt[详细]

2023-03-19 01:56 分类：问答
Does MySQL/InnoDB implement true serializable isolation?

It is not entirely clear from MySQL documentation whethe开发者_C百科r the InnoDB engine implements true serializable isolation1 or snapshot isolation, which is often confusingly called \"serializable\[详细]

2023-03-11 20:39 分类：问答
Practical uses of Seralization Isolation level?

Under what scenarios we use SERIALIZABLE Isolation level? I have seen some answers on website that says, when you want transaction to be completely isolated, we usually go for this.[详细]

2023-02-27 15:17 分类：问答
Is Database Connection same as Session?

I\'m bit confused about relationship between a Database Open Session Connection pooling To elaborate, I\'开发者_运维百科m using JDBC with Oracle 9i DB and I\'m also using a Connection Pool to poo[详细]

2023-02-27 11:43 分类：问答
SQL Server Insert query for a forum

Considering a forum table and many users simultaneously inserting messages into it, how safe is this transaction?[详细]

2023-01-29 00:37 分类：问答
How do I use a transaction when reading data with Entity Framework 4?

I\'m trying to utilize the SNAPSHOT transaction isolation level in Microsoft SQL Server 2008 R2 with the Entity Framework 4.0. However, this doesn\'t seem to be as easy as I first thought.[详细]

2023-01-24 15:37 分类：问答
how to lock a DB table or a range of rows for writing?

I have a simple table with a primary key. Most of the read operations fetch one row by the exact value of the key.[详细]

2023-01-24 08:14 分类：问答
Nhibernate : generates insert then update statements, in multithreaded environment leads to deadlock issues

I\'ve experienced the following scenario when using NHibernate with SQL Server 2005. I have a business process which involves the following steps:[详细]

2023-01-17 23:54 分类：问答
how to sort Gridview rows by a unbound Template column

i want开发者_开发技巧 to sort my Gridview rows by a template column that is not bound to any database field. This template coulmn just has a label whose text i set in code depending on a value in a di[详细]

2022-12-23 22:25 分类：问答