What is the default isolation level in SQL Server 2005 and in which scenario would you want to change it ? And little explanation about the default isolation level would be appreciated.
Thanks in anticipation
What is the default isolation level in SQL Server 2005 and in which scenario would you want to change it ? And little explanation about the default isolation level would be appreciated.
Thanks in anticipation
默认 = 已提交读
你不需要经常改变它。有些人建议“始终使用 READ UNCOMMITTED”,但这很危险。
至于为什么,我建议使用Wikipedia,但总而言之,可能会出现 3 个数据读取问题:
当您以降低并发性为代价增加隔离(到 SERIALIZABLE)时,这些中的每一个都会被删除。
默认级别可以防止“脏读”,坦率地说已经足够了。