Welcome!

@CloudExpo Authors: Elizabeth White, Yeshim Deniz, Harry Trott, Pat Romanski, William Schmarzo

Related Topics: @CloudExpo, Linux Containers

@CloudExpo: Blog Feed Post

SQL Data Services: Your Database in the Cloud

This will really make sharing of data in the cloud so much easier

One thing in the Microsoft cloud I find really interesting is SQL Data Services and Huron/Data Hub - SQL cloud sync service, one of the “cloud” offerings I believe has lots of potential and will really make sharing of data in the cloud so much easier.

I had the pleasure to sit down and talk about this subject with Liam Cavanagh, Sr. Program Manager at Microsoft, with the SDS/Huron team, and get some insights about the current state and the future of this remarkable new technology. In this article I’ll talk about SQL Data Services, and I’ll follow up with one about Data Hub/Huron.

SQL Data Services is at the core, nothing more than a (Microsoft SQL) database-as-a-service offering from Microsoft, part of the Azure Services Platform. First thing you’ll find about SQL Data Services is that “is just SQL” (at least that’s how Microsoft is advertising it). And it is. You’re able to change your connection string from your local database to your cloud database and you can access the “cloud” SQL. You can use SQL Studio to run queries, create tables, everything (oh well, almost) you do locally. First version of SQL Data Services will support: tables, indexes, views, stored procedures, triggers, constraints, table variables, session temp tables etc. It will not support: distributed transactions or queries, CLR, Service Broker, Spatial, physical server or catalog DDL and views. Also, reporting services, Business Intelligence  services, will be available sometimes in the future. So far there’s no information for when some of the features not included in the first version will be available.

The initial commercial release will have some limitations on database size, most likely it will be around 10 GB. The limitation might be lifted on future releases, but for now will be there to stay. This limitation is mainly because Microsoft feels that this is a good size they can easily manage in the background: backups, moving the database from a server to another server, data recovery, etc. You can have as many databases you want, and let’s be honest, 10 GB is a lot of data to store.

Other limitation will have to do with the duration of transactions and resource load on the server hosting your data. Keep in mind that your data will be living on servers in Microsoft’s data centers, with data from other customers. Microsoft makes sure your data is secure (I’m sure we’ll see some guarantees in the SLA), but in order to maintain good multi-tenant practices it will have to throttle or otherwise make sure that all the databases on the server get enough resources to function properly. One of the techniques used is moving more active databases from a loaded server to an idle server.

Like with any other database, corruption of data can happen in the cloud database as well. Microsoft has mechanisms in place to recover from data corruption (mainly by keeping database replicas on multiple servers), however, they don’t provide any user level backup of the database (at least in the first version). As we’ve seen in some of the PDC 2008 presentations, in the future we will probably see database backup/restore and geo-replication (synchronous – replica set spans datacenters and asynchronous – independent replica sets in different datacenters).

There’s no surprise on how concurrency is handled in the cloud database, SDS has the same mechanism like any SQL Server. SQL Server supports optimistic (time-stamps or value comparisons) or pessimistic concurrency models. The presence of the “cloud” doesn’t change the model at all. If you’re really curious about the subject, here’s a link to some information about SQL Server 2008 Concurrency which essentially deals with how the SQL Server handles locking.

By having the database in the cloud, there’s going to be a latency when accessing it from your premises. Microsoft recommends running your applications that are using the database in the cloud on the Azure Platform, so the latency is minimal. When you deploy an application on Windows Azure and provision an SDS server, the two are going to be co-located, to provide low latency between the application and the data.

You will find out rather quickly that there’s no web based administration tool for managing your database in the cloud, but most probably some kind of web admin tool (Microsoft or third party) will be available in the near future.

The exact billing model is not yet available. However, we know from Nigel Ellis (the person responsible for the design, development, and release of SQL Data Services) that customers will be charged for the physical database size including all data and indexes defined.

What is SDS offering more than other SQL hosting services? High availability - your data is guaranteed, is available all the time. If you’re hosting SQL, in order to have high availability, you need to probably have two servers (mirrored) in case one goes down, the other one can take over. Also, SDS solution seems to be cost effective, since you pay just for what you’re using.

Initially SDS was built to use SOAP and REST protocols to access the data. With the switch to being a full relational database in the cloud, SDS is now using Tabular Data Stream (TDS) protocol, an application layer protocol used to transfer data between a database server and a client, initially developed by Sybase Inc. for their Sybase SQL Server relational database engine in 1984, and later by Microsoft in Microsoft SQL Server. There are already lots of drivers already implemented for this protocol: ODBC, OLEDB, ADO .NET, ODBC driver for PHP stack, you can access it from ruby, from linux using the Open TDS driver.

Of course, it will take some time for the platform to mature. It is the goal of this first version to address the needs of 95% or more web and departmental applications.

The SQL Data Services Community Technology Preview (CTP) will be available soon. You can join the mailing list in order to receive an e-mail notification when it will become available.

Related posts:

Read the original blog entry...

More Stories By Alin Irimie

Alin Irimie is a software engineer - architect, designer, and developer with over 10 years experience in various languages and technologies. Currently he is Messaging Security Manager at Sunbelt Software, a security company. He is also the CTO of RADSense Software, a software consulting company. He has expertise in Microsoft technologies such as .NET Framework, ASP.NET, AJAX, SQL Server, C#, C++, Ruby On Rails, Cloud computing (Amazon and Windows Azure),and he also blogs about cloud technologies here.

@CloudExpo Stories
Everything run by electricity will eventually be connected to the Internet. Get ahead of the Internet of Things revolution and join Akvelon expert and IoT industry leader, Sergey Grebnov, in his session at @ThingsExpo, for an educational dive into the world of managing your home, workplace and all the devices they contain with the power of machine-based AI and intelligent Bot services for a completely streamlined experience.
Because IoT devices are deployed in mission-critical environments more than ever before, it’s increasingly imperative they be truly smart. IoT sensors simply stockpiling data isn’t useful. IoT must be artificially and naturally intelligent in order to provide more value In his session at @ThingsExpo, John Crupi, Vice President and Engineering System Architect at Greenwave Systems, will discuss how IoT artificial intelligence (AI) can be carried out via edge analytics and machine learning techn...
SYS-CON Events announced today that Datera, that offers a radically new data management architecture, has been named "Exhibitor" of SYS-CON's 21st International Cloud Expo ®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Datera is transforming the traditional datacenter model through modern cloud simplicity. The technology industry is at another major inflection point. The rise of mobile, the Internet of Things, data storage and Big...
FinTechs use the cloud to operate at the speed and scale of digital financial activity, but are often hindered by the complexity of managing security and compliance in the cloud. In his session at 20th Cloud Expo, Sesh Murthy, co-founder and CTO of Cloud Raxak, showed how proactive and automated cloud security enables FinTechs to leverage the cloud to achieve their business goals. Through business-driven cloud security, FinTechs can speed time-to-market, diminish risk and costs, maintain continu...
Existing Big Data solutions are mainly focused on the discovery and analysis of data. The solutions are scalable and highly available but tedious when swapping in and swapping out occurs in disarray and thrashing takes place. The resolution for thrashing through machine learning algorithms and support nomenclature is through simple techniques. Organizations that have been collecting large customer data are increasingly seeing the need to use the data for swapping in and out and thrashing occurs ...
As many know, the first generation of Cloud Management Platform (CMP) solutions were designed for managing virtual infrastructure (IaaS) and traditional applications. But that’s no longer enough to satisfy evolving and complex business requirements. In his session at 21st Cloud Expo, Scott Davis, Embotics CTO, will explore how next-generation CMPs ensure organizations can manage cloud-native and microservice-based application architectures, while also facilitating agile DevOps methodology. He wi...
SYS-CON Events announced today that CA Technologies has been named "Platinum Sponsor" of SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business - from apparel to energy - is being rewritten by software. From planning to development to management to security, CA creates software that fuels transformation for companies in the applic...
From 2013, NTT Communications has been providing cPaaS service, SkyWay. Its customer’s expectations for leveraging WebRTC technology are not only typical real-time communication use cases such as Web conference, remote education, but also IoT use cases such as remote camera monitoring, smart-glass, and robotic. Because of this, NTT Communications has numerous IoT business use-cases that its customers are developing on top of PaaS. WebRTC will lead IoT businesses to be more innovative and address...
An increasing number of companies are creating products that combine data with analytical capabilities. Running interactive queries on Big Data requires complex architectures to store and query data effectively, typically involving data streams, an choosing efficient file format/database and multiple independent systems that are tied together through custom-engineered pipelines. In his session at @BigDataExpo at @ThingsExpo, Tomer Levi, a senior software engineer at Intel’s Advanced Analytics ...
Blockchain is a shared, secure record of exchange that establishes trust, accountability and transparency across business networks. Supported by the Linux Foundation's open source, open-standards based Hyperledger Project, Blockchain has the potential to improve regulatory compliance, reduce cost as well as advance trade. Are you curious about how Blockchain is built for business? In her session at 21st Cloud Expo, René Bostic, Technical VP of the IBM Cloud Unit in North America, will discuss th...
yperConvergence came to market with the objective of being simple, flexible and to help drive down operating expenses. It reduced the footprint by bundling the compute/storage/network into one box. This brought a new set of challenges as the HyperConverged vendors are very focused on their own proprietary building blocks. If you want to scale in a certain way, let’s say you identified a need for more storage and want to add a device that is not sold by the HyperConverged vendor, forget about it....
SYS-CON Events announced today that App2Cloud will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. App2Cloud is an online Platform, specializing in migrating legacy applications to any Cloud Providers (AWS, Azure, Google Cloud).
While some vendors scramble to create and sell you a fancy solution for monitoring your spanking new Amazon Lambdas, hear how you can do it on the cheap using just built-in Java APIs yourself. By exploiting a little-known fact that Lambdas aren’t exactly single-threaded, you can effectively identify hot spots in your serverless code. In his session at @DevOpsSummit at 21st Cloud Expo, Dave Martin, Product owner at CA Technologies, will give a live demonstration and code walkthrough, showing how ...
SYS-CON Events announced today that MobiDev, a client-oriented software development company, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MobiDev is a software company that develops and delivers turn-key mobile apps, websites, web services, and complex software systems for startups and enterprises. Since 2009 it has grown from a small group of passionate engineers and business...
Internet of @ThingsExpo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devic...
SYS-CON Events announced today that Dasher Technologies will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Dasher Technologies, Inc. ® is a premier IT solution provider that delivers expert technical resources along with trusted account executives to architect and deliver complete IT solutions and services to help our clients execute their goals, plans and objectives. Since 1999, we'v...
SYS-CON Events announced today that Ayehu will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Ayehu provides IT Process Automation & Orchestration solutions for IT and Security professionals to identify and resolve critical incidents and enable rapid containment, eradication, and recovery from cyber security breaches. Ayehu provides customers greater control over IT infrastructure throu...
Cloud adoption is often driven by a desire to increase efficiency, boost agility and save money. All too often, however, the reality involves unpredictable cost spikes and lack of oversight due to resource limitations. In his session at 20th Cloud Expo, Joe Kinsella, CTO and Founder of CloudHealth Technologies, tackled the question: “How do you build a fully optimized cloud?” He will examine: Why TCO is critical to achieving cloud success – and why attendees should be thinking holistically ab...
SYS-CON Events announced today that Elastifile will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Elastifile Cloud File System (ECFS) is software-defined data infrastructure designed for seamless and efficient management of dynamic workloads across heterogeneous environments. Elastifile provides the architecture needed to optimize your hybrid cloud environment, by facilitating efficient...
SYS-CON Events announced today that Grape Up will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Grape Up is a software company specializing in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market across the U.S. and Europe, Grape Up works with a variety of customers from emergi...