Question

我的C#/SQLite app工作正常但偶尔输出此错误：

SQLite error (10): delayed 25ms for lock/sharing conflict

根据this thread的建议，我更新了最新的SQLite，但它仍然会发生如何解决这个问题？

SQLite版本sqlite-netFx40-static-binary-Win32-2010-1.0.84.0.zip位于http://system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki的Precompiled Statically-Linked Binaries for 32-bit Windows (.NET Framework 4.0)段

Visual C＃2010 Express

Answer 1

从这段原始代码：

    using (var command = new SQLiteCommand(GetSQLiteConnection()))
    {
        try
        {
            command.CommandText =
                "DELETE FROM folders WHERE path='" + path + "'";
            command.ExecuteNonQuery();
        }
        catch (SQLiteException e)
        {
            SparkleLogger.LogInfo("CmisDatabase", e.Message);
        }
    }

更改为此解决了问题（只有前两行不同）：

    var connection = GetSQLiteConnection();
    using (var command = new SQLiteCommand(connection))
    {
    try
        {
            command.CommandText =
                "DELETE FROM folders WHERE path='" + path + "'";
            command.ExecuteNonQuery();
        }
        catch (SQLiteException e)
        {
            SparkleLogger.LogInfo("CmisDatabase", e.Message);
        }
    }

Answer 2

查看评论中的源代码：

        using (var command = new SQLiteCommand(GetSQLiteConnection()))
        {
            try
            {
                command.CommandText =
                    "DELETE FROM folders WHERE path='" + path + "'";
                command.ExecuteNonQuery();
            }
            catch (SQLiteException e)
            {
                SparkleLogger.LogInfo("CmisDatabase", e.Message);
            }
        }

using语句是处理命令而不是连接。尝试为每个命令使用两个嵌套的using语句。

   using (var connection= GetSQLiteConnection())
   {
      using (var command = new SQLiteCommand(connection))
      {
        try
        {
            command.CommandText =
                "DELETE FROM folders WHERE path='" + path + "'";
            command.ExecuteNonQuery();
        }
        catch (SQLiteException e)
        {
            SparkleLogger.LogInfo("CmisDatabase", e.Message);
        }
     }
  }

这可以缓解这个问题，但是其他因素可能会导致此错误出现。

SQLite错误（10）：锁定/共享冲突延迟25ms

2 个答案: