Polyglot Databases!David.Stokes@Oracle.com@Stokerslideshare.net/davidmstokes

"THE FOLLOWING IS INTENDED TO OUTLINE OUR GENERAL PRODUCT DIRECTION. IT IS INTENDED FOR INFORMATION PURPOSES ONLY, AND MAY NOT BE INCORPORATED INTO ANY CONTRACT. IT IS NOT A COMMITMENT TO DELIVER ANY MATERIAL, CODE, OR FUNCTIONALITY, AND SHOULD NOT BE RELIED UPON IN MAKING PURCHASING DECISIONS. THE DEVELOPMENT, RELEASE, AND TIMING OF ANY FEATURES OR FUNCTIONALITY DESCRIBED FOR ORACLE'S PRODUCTS REMAINS AT THE SOLE DISCRETION OF ORACLE."

Safe Harbor

Quick MySQL Catch Up21 Years OldMySQL has been part of Oracle’s family of databases for six years.

MySQL 8MySQl 5.7 is the current release but the next version will be MySQL 8. Big feature is real time data dictionary

Group ReplicationActive master-master replication.

JSONA new native JSON datatype to store documents in a column of a table

Document StoreProgrammers not know SQL but need a database? X Devapi allows them to use RDMS from language of choice

EncryptionUse Oracle Key Vault to encrypt your data at rest.

pol·y·glot"one who can write or speak several

languages."

Pol·y·glotDatabase

"A data who can write or speak structured query language and more."

Not a glUT Of parrots

Databases are … mutatingThe relational database model has been established for decades. Originally designed for efficient storage of data of normalized data when disk drive space was expensive, they now can consume un-normalized data or bypass their own optimizers and syntax checking restraints for previously unimagined speed.

Why!What would force well behaving software of outstanding utility To change … To morph … To take on new SuperPowers?????

1.RElational

ModelOne size fits all,

One size fits small,Or

One size gives all fits?

RDMSThe relational model works well but not all data fits easily into schemas.Sometimes the data is too big (or messy) , ephemeral, the team lacks DBA skills, orThe programmer is #%*@ lazy and wantsTo pile stuff like a teenager!!!

NoSQL -- Broad topic made up of

many technologies looped together like indolent cattle and

branded

NoSQL

NoSQL technologies× Graph Databases --relations, 6°of Kevin

Bacon× Map/Reduce -- Filter/Sort/Count× Key/Value -- <attribute name/ value>× Document store -- key/value with document

data

× Most designed to scale horizontally× Give up consistency

Adding NoSQL

The relational database vendors have been busy adding NoSQL features to SQL. ACID on NoSQL still very hard.

Key/Value Pair

Document StoreJSON Data TypeMicrosoft, PostgreSQL, MySQL & more

Adding the ‘Poly’ to your data

The InnoDB memcached plugin provides an integrated memcached daemon that automatically stores and retrieves data from InnoDB tables, turning the MySQL server into a fast “key-value store”. Instead of formulating queries in SQL, you can use simple get, set, and incr operations that avoid the performance overhead associated with SQL parsing and constructing a query optimization plan. You can also access the same InnoDB tables through SQL for convenience, complex queries, bulk operations, and other strengths of traditional database software.

InnoDB Key/Value via memcahced

9X faster!

When you bypass syntax

check and optimizer.

Getting it workPluginOne line command to installed shared object.

ScriptRun a script to setup example tables. Use as a template to fit your data, e.g. column separator character defaults to ‘|’ (pipe).

CacheYou can now use MySQL/Memcached as a consistent cache or customize to your needs.

JSON

Java Script Object Notation or JSON is a popular way of storing information in a relatively easy for humans to consume fashion.

Not THIS JASON

dON’T WANT TO NORMALIZE YOUR DATA? tHEN STORE A ENTIREDOCUMENTIN A SINGLECOLUMN!

mYsqL 5.7’S nATIVE json DATA TYPECREATE TABLE json_example (JSON stuff);INSERT INTO json_example (stuff) \Values (‘{"k1": "value", "k2": 10}’);

You are breaking the first rule of data normalization! So

you need new functions to be able to take care of the document in the

column!

Twenty Two functions for JSON data

Create/Modify Search Meta

See JSON DATA TYPE http://slideshare.net/davidmstokes for details & examples

JSON Data can not be indexed -- hard to find

You can use GENERATED columns to extract values from a JSON column and those columns can be indexed for fast SQL searches.

SQL skills == no?

What if your programmers do not know Structured Query Language???

Document StoreRelational databases such as MySQL usually required a document schema to be defined before documents can be stored. You can use MySQL as a document store, which is a schema-less, and therefore schema-flexible, storage system for documents. When using MySQL as a document store, to create documents describing products you do not need to know and define all possible attributes of any products before storing them and operating with them. This differs from working with a relational database and storing products in a table, when all columns of the table must be known and defined before adding any products to the database.

New Shell & New protocolDevelopers can do CRUD

(create/read/update/delete)From language of choice

(SQL hidden as to not frighten them)

33060New port

mysqlshNew shell with Python, Javascript, and SQL modes

X DevapiNew protocol

X DevapiThe X DevAPI wraps powerful concepts in a simple API.

● A new high-level session concept enables you to write code that can transparently scale from single MySQL Server to a multiple server environment.

● Read operations are simple and easy to understand.

● Non-blocking, asynchronous calls follow common host language patterns.

The X DevAPI introduces a new, modern and easy-to-learn way to work with your data.

● Documents are stored in Collections and have their dedicated CRUD operation set.

● Work with your existing domain objects or generate code based on structure definitions for strictly typed languages.

● Focus is put on working with data

● Modern practices and syntax styles are used to get away from traditional SQL-String-Building

The new shellmysqlsh -u root --sqlEnter password: ****mysql-py> db.createCollection("flags")<Collection:flags>mysql-py> db.getCollections()[ <Collection:CountryInfo>, <Collection:flags>]mysql-py> db.CountryInfo.find("GNP > 500000")...[output removed]10 documents in set (0.00 sec)

Languages SupportedConnectors for

JavascriptPython.NETJAVANode.JS

(others in development)

Other Vendors

have similar offerings of

NoSQL interfaces for

their SQL

databases

And to you!!

What does this mean to your

servers???

Databases are the spoiled brats of servicesDatabases do not× Play Well With Others× Always Want More× Needs near constant

watching× Always growing× Demanding

Disk Reads are 100,000 slower than Memory

Place your screenshot here

yOur futuredatabase Server

HardwareMore/faster memory for in memory DBs

Spill to disk, pin to memoryDurable to disk (ACID Compliant)

Gets cheaper every year (~40%)Cache is the new RAM, RAM the new disk, disk the new

tape, etcNo random writes leverage SSDsNVRAM on the way, many be cheaper

SoftwareSecurityCommunicationBackupSchedulerSmarter file systems/device drivers

THANKS!Any questions?You can find me at @stoker or david.stokes@oracle.comSlides -- http://slideshare.net.davidmstokes