在两个微服务之间共享单个数据库连接

Question

I have two micro-services written using .net core that shares a single database (sql server) i want to unify database connection between the two micro-services is this possible to do?

Answer 1

.Net and database server instance manage Actual(physical) database connections. Every time applications request to open a connection to the database; it is provided from a connection pool. And, when a connection is closed in an application, it is returned to the pool.
You may able to share the connection object by some of the inter-process-communication methods and native coding, but it is not a good pattern.
If you need a connection for keeping a transaction in both services, it is better to do that by using distributed transactions.

Answer 2

Can you explain with more detail what you want to do or what problem you are having?

You can create 2 different users for each of the 2 micro-services so you can manage their premissions separately.
That's the recommended option if they use different tables/databases or they do different things (One can only read a single table, the other one can read and write to a different table).

If you don't need that then you can use a single user for both micro-services. The user has a "Max Connections" property for that.