Copy data from one ClickHouse® server to another
You can copy data from one ClickHouse® server to another using the
remoteSecure()
function.
Prerequisites
Details of the source (remote) server
- Hostname
- Port
- Username
- Password
Copy data
-
From your target server(s), use the
remoteSecure()
function to select data from the source server.SELECT * FROM remoteSecure('HOSTNAME:PORT', db.remote_engine_table, 'USERNAME', 'PASSWORD') LIMIT 3;
-
Insert the selected data into the target server.
INSERT INTO [db.]table [(c1, c2, c3)] SELECT ...
For details on how to configure and use the INSERT query, see Inserting the Results of SELECT.
Your data has been copied from the remote (source) server to the new (target) server.