目录一、事务并发问题二、mysql 事务隔离级别1. READ UNCOMMITTED（读未提交）2. READ COMMITTED（读已提交）3. REPEATABLE READ（可重复读）（MySQL 默认级别）4. SERIALIZABLE（可串行化）三、MySQL 默认事务隔离级
LINQ to SQL .Count takes way to much process time and decreases performances. I am doing a recursive loop and for one child (lets call it parent) I have to check the number of children under it to ma
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