1、read_only参数和super_read_only参数默认都是关闭的,read_only参数设置为on的情况下,会组织客户端的更新,但是如果一个账号拥有super权限,那么还是可以进行更新的。而super_read_only会阻止所有的客户端更新,即使客户端拥有super权限也不可以。 2、设置super_read_only参数为on会默认
SQL 错误 [164]: ClickHouse exception, code: 164, host: 127.0.0.1, port: 53860; Code: 164, e.displayText() = DB::Exception: Cannot override setting (result_overflow_mode) in readonly mode ClickHouse 连接: clickhouse-server 账号配置 问题描述: 同一个账号密码,在命令行中执行查询是正常的;由此...
另一个问题是将 AUTOGROW_ALL_FILES 或 READ_ONLY属性设置为文件组时,在数据库或服务器重新启动后不保留该属性。 Sys 文件视图 仍显示属性的对应列(is_autogrow_all_files和is_read_only)设置为1。 但是,这并不是真正有效。 解决方案 在以下 SQL Server 累积更新中首先修复此问题: ...
1 可能发生了主备切换:查看/data/pg_hba.conf select pg_is_in_recovery(); 备机返回T 2 show default_transaction_read_only 查看是否参数值为ON 会话级别: set default_transaction_read_only = off; DB级别: alter database xxxxx set default_transaction_read_only = off; 系统级别: alter system set ...
SQL Server中的"应用程序Intent=readonly"是一个连接字符串选项,用于指定连接到数据库的应用程序的意图是只读访问数据。然而,根据提供的问答内容,问题似乎是关于JDBC连接中的问题。 JDBC(Java Database Connectivity)是Java语言访问数据库的标准API。在使用JDBC连接SQL Server时,可以通过设置连接字符串的属性来指定...
if it is a system transaction then you will get the value "3" in this column.I'm not sure what would set the transaction type to "2" as I did a quick test on a read-only database with a SELECT statement and this still indicated a value of "1"....
执行SQL发生错误!错误:attempt to write a readonly database 找到SQLite数据库所在的文件夹,单击右键,属性->安全,为Users用户组添加写入权限(如果是虚拟主机,把虚拟主机用户设置写入权限即可)。再试一下,
Using Transact-SQL Show 4 more Applies to:SQL Server To configure an Always On availability group to support read-only routing in SQL Server, you can use either Transact-SQL or PowerShell.Read-only routingrefers to the ability of SQL Server to route qualifying read-only connection requests to...
java.sql.SQLException: Connection is read-only. Queries leading to data modification are not 产生的原因: 事务中查询的方法中,嵌套了新增或修改的方法,会报该异常。 解决方法: 找到报错的方法,在该方法上加上注解,@Transactional(readOnly = false) ...
With the read-only flag checked in the settings for a connection, 'Read-Only' is enforced client-side from the SQLyog GUI and the editor no matter if user's server-side privileges allows for writes. In 'Read-Only mode' you will be able to retrieve data from the server, use user ...