是否存在UPDATE count = count + 1的并发？

问题描述

我想知道，我会遇到任何并发问题吗？

I wanted to know, will I run into any concurrency problem with this?

这不在交易中。该代码用于 Sqlite（prototype），但我计划将其与MySql或MS的SQL一起使用

This is NOT in a transaction. This code is for Sqlite(prototype), but I plan to use it with either MySql or a SQL from MS

                command.CommandText =
                    "UPDATE tag_name SET count = count+1 "+
                    "WHERE tagid=@tagid";
                command.Parameters.Add("@tagid", DbType.Int64).Value = tagId;
                command.ExecuteNonQuery();

推荐答案

不，这不是问题。默认情况下，锁定机制应处理单个语句中的任何并发问题。

No this shouldn't be a problem. By default the locking mechanism should take care of any concurrency issues in single statements.

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