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在我的应用程序中,我有两个线程正在运行。一种是查询服务器并更新数据库。其他线程将获取数据并更新 UI。
问题是,当读取和写入同时调用数据库时,其中一个失败了。
错误如下: 创建SELECT c.id,c.address,c.type,e.id,e.name,e.logo,e.system,c.city FROM cashpoints c,实体e WHERE e时出错。 id = c.entity AND c.id = ?; => '数据库已锁定'