What Are Database Links?
A database link is a pointer that defines a one-way communication path from an Oracle Database server to another database server. The link pointer is actually defined as an entry in a data dictionary table. To access the link, you must be connected to the local database that contains the data dictionary entry.
A database link connection is one-way in the sense that a client connected to local database A can use a link stored in database A to access information in remote database B, but users connected to database B cannot use the same link to access data in database A. If local users on database B want to access data on database A, then they must define a link that is stored in the data dictionary of database B.
A database link connection allows local users to access data on a remote database. For this connection to occur, each database in the distributed system must have a unique global database name in the network domain. The global database name uniquely identifies a database server in a distributed system.
apakah ada RDBMS atau non-RDBMS yg memakai datalink selain oracle berdasarkan pengalaman agan2?
mohon info nya utk nambah pengetahuan
![[ask] SQL - No SQL Server yg make database link?](https://s.kaskus.id/images/2020/06/16/5208372_20200616093628.jpg)
