System Databases in SQL Server
https://docs.microsoft.com/en-us/sql/relational-databases/databases/system-databases
SQL Server includes the following system databases.
1.master
Records all the system-level information for an instance of SQL Server.
2.model
Is used as the template for all databases created on the instance of SQL Server.
Modifications made to themodeldatabase, such as database size, collation, recovery model, and other database options, are applied to any databases created afterward.
3.msdb
Is used by SQL Server Agent for scheduling alerts and jobs.
4.tempdb
Is a workspace for holding temporary objects or intermediate result sets.
5.Resource
Is a read-only database that contains system objects that are included with SQL Server. System objects are physically persisted in theResourcedatabase, but they logically appear in thesysschema of every database.
优质内容筛选与推荐>>1、我的CCIE认证之路---出自tech
2、关于类无限递归问题（转）
3、虚拟键盘驱动程序
4、C#语言学习：变量的声明与初始化的范围（对比C++）
5、Chrome DevTools 的 Sources 调试