QUOTENAME()函数 这个函数和SQL Server对象名组合使用,以将结果传递给表达式。它只用于给输入的字符串加一对方括号,并返回新形成的字符串。 如果参数包含保留的分隔符或者封装字符(比如引号或括号),这个函数将修改字符串,以便SQL Server能将结果字符串中的这类字符当成文本字符。如下面的例子所示,查询的结果如图所示。
The LOG() function returns the natural logarithm of a specified number, or the logarithm of the number to the specified base.From SQL Server 2012, you can also change the base of the logarithm to another value by using the optional base parameter. ...
1.将log_bin_trust_function_creators参数设置为ON,这样一来开启了log-bin的MySQL Server便可以随意创建function。这里存在潜在的数据安全问题,除非明确的知道创建的function在master和slave上的行为完全一致。 设置该参数可以用动态的方式或者指定该参数来启动数据库服务器或者修改配置文件后重启服务器。需注意的是,动态设...
You create a linked server in Microsoft SQL Server 2016 or 2017 that points to a remote instance of SQL Server 2012 or later versions. You want to use the LOG() function without explicitly specifying the logarithm base (to ...
Error Code: 1418. This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)原来是因为在主从复制的两台MySQL服务器中开启了二进制日志选项log-...
For more information about recovery models, see Back Up and Restore of SQL Server Databases. Before you can create the first log backup, you must create a full backup, such as a database backup or the first in a set of file backups. Restoring a database by using only file bac...
Object Explorer only displays the SQL Server Agent node if you have permission to use it. Security Permissions To perform its functions, SQL Server Agent must be configured to use the credentials of an account that is a member of the sysadmin fixed server role in SQL Server. The account must...
You set up a query log on the server. You synchronize a database on the server. In this scenario, all records in the query log table are truncated. Note This problem also exists in SQL Server 2008 and in SQL Server 2008 R2. For more information, see the "More Information...
in place, then you will need to replace them. And if the existing instances or other services are using these files, resulting in these files being locked at this moment, you’ll have to reboot to replace them. Thus you can always install a SQL Server 2000 instance that is the same ...
Applies to: SQL Server This topic describes how to configure log shipping in SQL Server by using SQL Server Management Studio or Transact-SQL. Note SQL Server 2008 (10.0.x) Enterprise and later versions support backup compression. When creating a log shipping configuration, you can control the ...