Couchbase N1QL queries on server

旧街凉风 提交于 2019-12-23 15:53:48

问题


I used the online N1QL tutorial to practices writing queries. Now that I have a couchbase server of my own, I want to query my own data.

My questions is

Where in the Couchbase server can I write my queries?

thanks


回答1:


Remember that N1Q1 is still in Beta.

The way it works is that you have to run Couchbase Query Server (aka CBQ). It runs in a default port 8093 (see N1QL) The query server will connect to the specified Couchbase instance/cluster. e.g.

cbq-engine -couchbase <CB-location>

Once CB Query Engine up and running you can run command line client and in a command prompt can issue your N1QL statements, e.g.:

cbq -engine http://your-cb-host:8093/

cbq> SELECT 'Hello World' AS Greeting
{
    "resultset": [
        {
            "Greeting": "Hello World"
        }
    ],
    "info": [
        {
            "caller": "http_response:160",
            "code": 100,
            "key": "total_rows",
            "message": "1"
        },
        {
            "caller": "http_response:162",
            "code": 101,
            "key": "total_elapsed_time",
            "message": "4.0002ms"
        }
    ]
}



回答2:


N1QL is released and available as part of Couchbase Server. Please download Couchbase Server 4.1 http://www.couchbase.com/nosql-databases/downloads

Learn more at: http://www.couchbase.com/n1ql




回答3:


Just to note, there is a new developer preview of N1QL out now (http://docs.couchbase.com/developer/n1ql-dp3/n1ql-intro.html) and the way to connect to a Couchbase cluster has changed from the answer given by user1697575; it's now:

cbq-engine -datastore <CB-location>

The Couchbase query engine can also serve N1QL queries from a file system, and there is a file system included in the download that can be queried:

cbq-engine -datastore=dir:./data


来源:https://stackoverflow.com/questions/25620506/couchbase-n1ql-queries-on-server

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