数据库复制.2台服务器，主数据库，第二台是只读的

假设您有 2 个数据库服务器，其中一个数据库是执行所有写入操作的主"数据库，它被视为真实/原始"数据库.另一台服务器的数据库是主数据库(从?)的镜像副本，用于应用程序的某个部分的只读操作.

Say you have 2 database servers, one database is the 'master' database where all write operations are performed, it is treated as the 'real/original' database. The other server's database is to be a mirror copy of the master database (slave?), which will be used for read only operations for a certain part of the application.

你如何设置一个从数据库来镜像主数据库上的数据?据我了解，slave/readonly 数据库是使用master db 的事务日志文件来镜像数据是否正确?
在从数据库镜像数据的频率方面，我有哪些选择?(实时/每 x 分钟?).

How do you go about setting up a slave database that mirrors the data on the master database? From what I understand, the slave/readonly database is to use the master db's transaction log file to mirror the data correct?
What options do I have in terms of how often the slave db mirrors the data? (real time/every x minutes?).