couchbase live europe 2015: bringing n1ql query to your app frameworks in java, .net & node.js

Bringing N1QL Query to Your App Frameworks in Java, .NET & Node.js

Matt Ingenthron & Simon Baslé - Couchbase

N1QL Primer

©2015 Couchbase Inc.

N1QL Primer

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NoSQL...


N1QL Primer

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NoSQLbut why not a

query language?


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querying on

relational data=

SQL


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querying on

JSON=

N1QL


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SELECT fname, children FROM tutorial


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SELECT fname, children FROM tutorial

SQL? We can do better


N1QL Primer

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SELECT fname, children FROM tutorialWHERE EVERY child IN tutorial.children

SATISFIES child.age > 10 END


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cbq-enginethe N1QL service


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cbq-enginethe N1QL service

standalone in DP4, to be integrated in couchbase server


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cbqcommand line client


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responses are

JSON


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{"results": [{"children": [{"age": 17,"fname": "Abama","gender": "m"

},{"age": 21,"fname": "Bebama","gender": "m"

}],

responses are

JSON


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responses have

MetaData


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"requestID": "19bb1a64-633a"signature": {

"Greeting": "string"},"results": [ {"Greeting": "Hello World""status": "success","metrics": {

"elapsedTime": "7.48ms","executionTime": "6.8ms","resultCount": 1,"resultSize": 49

}}

responses have

MetaData

Usage in the SDKs


Usage in the SDKs

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C / C++


Usage in the SDKs

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Usage in the SDKs

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API at the

Bucketlevel


Usage in the SDKs

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Statementin a

Querywith additional

Parameters


Usage in the SDKs

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Statements can have

Placeholders


Usage in the SDKs

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either

positional $1


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or

named$param


Usage in the SDKs

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Placeholder valuesare passed in the query's parameters


Usage in the SDKs

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Statements can be

Prepared


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get a QueryPlanhold to it

then execute it repeatedly

©2015 Couchbase Inc. ‹#›

Try it yourself?

Connect to “linksys18871” with “couchbase123”

Head to http://192.168.1.149/ to follow along with .NET, Node or Java

http://192.168.1.149/

.Net

N1QL in

Node.JS

N1QL in

Java

N1QL in

Thank you.

couchbase live europe 2015: bringing n1ql query to your app frameworks in java, .net & node.js

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