Google Cloud Spanner vs Microsoft Azure SQL Database comparison

Google and Microsoft are both solutions in the Database as a Service (DBaaS) category. Google is ranked #8 with an average rating of 10.0, while Microsoft is ranked #1 with an average rating of 8.5. Google holds a 7.8% mindshare in DS, compared to Microsoft’s 10.5% mindshare. Additionally, 100% of Google users are willing to recommend the solution, compared to 96% of Microsoft users who would recommend it.

Google Cloud Spanner

Read 5 Google Cloud Spanner reviews

1,449 Views
1,377 Comparison Views

100% willing to recommend

Microsoft Azure SQL Database

Read 134 Microsoft Azure SQL Database reviews

4,459 Views
4,370 Comparison Views

96% willing to recommend

Google Cloud Spanner

Microsoft Azure SQL Database

Comparison Buyer's Guide

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Executive SummaryUpdated on Aug 12, 2024

Microsoft Azure SQL Database and Google Cloud Spanner are two prominent cloud database services with distinct functionalities and benefits, each suited to different needs. Users find Spanner superior for its global distribution and consistency.

Features: Microsoft Azure SQL Database is praised for its integrated AI capabilities, disaster recovery options, and strong integration with Microsoft services. Google Cloud Spanner is noted for its strong global scaling, true ACID compliance, and global transactional consistency.

Room for Improvement: Users identify areas for improvement in Azure SQL Database's performance tuning, advanced data analytics features, and documentation. For Google Cloud Spanner, complex query execution, additional native support for various data types, and training resources need enhancements.

Ease of Deployment and Customer Service: Users generally find the deployment process of Microsoft Azure SQL Database straightforward, benefitting from integrated support. Google Cloud Spanner offers robust deployment options but could enhance initial setup ease. Azure receives mixed feedback on customer service responsiveness, while Spanner users value prompt and knowledgeable support.

Pricing and ROI: Microsoft Azure SQL Database offers competitive pricing with flexible options, appealing to those seeking cost-effective solutions. Google Cloud Spanner, meanwhile, is considered expensive but justified by its high performance and scalability. Users experience significant ROI with Azure due to cost savings, while Spanner users justify the higher upfront costs with long-term gains in performance and reliability.

To learn more, read our detailed Google Cloud Spanner vs. Microsoft Azure SQL Database Report (Updated: March 2026).

Buyer's Guide

Google Cloud Spanner vs. Microsoft Azure SQL Database

March 2026

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Helped 884,012 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Google Cloud Spanner

Ranking in Database as a Service (DBaaS)

8th

Average Rating

9.2

Reviews Sentiment

7.8

Number of Reviews

Ranking in other categories

No ranking in other categories

Microsoft Azure SQL Database

Ranking in Database as a Service (DBaaS)

1st

Average Rating

8.6

Reviews Sentiment

6.9

Number of Reviews

134

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of March 2026, in the Database as a Service (DBaaS) category, the mindshare of Google Cloud Spanner is 7.8%, up from 4.1% compared to the previous year. The mindshare of Microsoft Azure SQL Database is 10.5%, down from 15.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Database as a Service (DBaaS) Mindshare Distribution
Product	Mindshare (%)
Microsoft Azure SQL Database	10.5%
Google Cloud Spanner	7.8%
Other	81.7%

Database as a Service (DBaaS)

Featured Reviews

LijomonJose

System Architect at UST Global EspaÃ±a

Offers good performance to users

The tool lacks to offer AI features. In the future, I would like the product to offer AI features to users. Nowadays, we are creating small acronyms for our SQL Server. We put some templates. If I just put your name and stop it, the entire cloud can be explored, but such features are not there in Google Cloud Spanner. As a layman rather than a developer, if I create a tool or a procedure. If I write a procedure and then when you describe a procedure, a dummy procedure will be written for you, and it will be available for you as a template in SQL Server, but such kind features are not there in Google Cloud Spanner.

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Thomas Sawyer

Executive Director, Platform Architecture at Sumitomo Mitsui Banking Corporation – SMBC Group

Automatic tuning and multi-region availability have reduced manual workloads and improved performance management

The features of Microsoft Azure SQL Database that I like the most are easy scaling and high availability. I appreciate those features because it's easy to make Microsoft Azure SQL Database readily available in a multi-region infrastructure. Using Microsoft Azure SQL Database is very easy; it's much easier than SQL on-premise because I don't have to worry about deploying infrastructure, and I can rapidly deploy via infrastructure as code. I am using the automatic tuning feature in Microsoft Azure SQL Database. We are using the new feature of data encryption in Microsoft Azure SQL Database with customer-managed keys only. The reliability and stability of Microsoft Azure SQL Database platform are rock-solid; it's as good, if not better, than what our on-premise stability has been from an uptime perspective.

Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"It is a very scalable solution."

"We can scale the solution if we need to."

"The most valuable feature of the solution is its scalability. Scalability comes with two options, among which Google Cloud Spanner can scale horizontally, compared to other relational databases that scale vertically."

"Google Cloud Spanner is stable."

"The application deployment in the cloud is the best feature of the infrastructure."

"The impact of the automatic tuning feature on my database performance has increased performance while keeping costs at realistic levels, and it has removed some of the engineering workloads for our DBAs who would have had to worry about manually performing tuning."

"It has significantly streamlined our disaster recovery plans, making it much more straightforward to spin up new instances as opposed to setting up a new VM with all necessary packages. The normal cost of our VMs with storage has been significantly reduced."

"The integration with Azure Data Factory is seamless and straightforward, described as just a click away."

"It's easy to use and maintain. If we look at the development of the maintenance team, we are not directly responsible for any infrastructure issues. We have too many positive sides to that. No maintenance, easy to use, and we'll know the limits very well."

"It integrates well on the back end with our functions and logic apps."

"I rate Microsoft Azure SQL Database nine out of 10."

"Azure SQL Database has significantly reduced our total cost of ownership by eliminating the need for managing physical infrastructure, including data warehouses and data centers."

"The biggest return on investment from my perspective when using Microsoft Azure SQL Database comes from how easy it is to set up and how much of a foundation it already has in terms of being a trusted platform."

More Microsoft Azure SQL Database pros

Cons

"The tool lacks to offer AI features."

"The cost can be a bit high."

"The tool needs to improve horizontal scaling."

"Google came up with something called Cloud Spanner Emulator, which fails to work like the real product if I want to develop some code and run a database locally on my machine."

"I want to improve the deployment of cameras and surveillance infrastructure."

"The managed SQL MI does not allow us to control the zone it runs in, which affects latency."

"We haven't had any major issues that have prevented us from doing stuff fundamentally. For its implementation, sometimes, it is complicated to understand what your needs are. It would be good to have a few use cases that provide different cloud variations that match on-premise installations and show how they can be moved to the cloud a bit better."

"It's a little bit limited in terms of functionality."

"The only thing that concerns me today is the pricing connected with Microsoft Azure SQL Database; everything else is all right."

"The preset configuration switches we can select on SQL Azure should be made more liberal to work on."

"Microsoft Azure SQL Database can be improved by making the interface a little easier for users to manage. A lot of the configuration has to be done through PowerShell, but perhaps they could include some more enhancements and settings to do through the portal."

"Azure SQL had a bit of a learning curve to start, but it was fairly simple once I understood how to develop it."

"What worked with Microsoft Azure SQL Database is good, but the challenge I faced is that it does not fit for a large-scale or tier-one business application."

More Microsoft Azure SQL Database cons

Pricing and Cost Advice

"It is expensive."

"Google Cloud Spanner is an expensive solution."

"The solution is expensive."

"Price-wise, I heard that Google Cloud Spanner is on the higher side."

"It is expensive. Snowflake and PostgreSQL are cheaper than this. Google is also cheaper than Azure. Its licensing is on a pay-as-you-go basis. It is based on usage and storage."

"SQL Azure's licensing cost is expensive."

"There is no licensing cost for the solution."

"There is a license required to use the solution and it cost $30 to do the installation."

"The solution is expensive."

"Offers options for paying the license on a yearly or a monthly basis."

"I believe the licensing is more on a global scale."

"It only has a subscription-based license."

More Microsoft Azure SQL Database pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

22%

Computer Software Company

12%

Healthcare Company

Media Company

Financial Services Firm

13%

Marketing Services Firm

Computer Software Company

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

By reviewers
Company Size	Count
Small Business	59
Midsize Enterprise	17
Large Enterprise	61

Questions from the Community

What is your primary use case for Google Cloud Spanner?

Google Cloud Spanner has all the features of a traditional relational database, including schemas, SQL queries, ACID transactions, and provides excellent integration and monitoring tools as well as...

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What is your experience regarding pricing and costs for Google Cloud Spanner?

Price-wise, I heard that Google Cloud Spanner is on the higher side. I am not sure if this is a rumor or if it's fake news, but I believe that having BigQuery and GCP together could be a little cos...

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What needs improvement with Google Cloud Spanner?

See all answers

What do you like most about SQL Azure?

The automated scalability feature of SQL Azure has proven to be highly beneficial, particularly when deployed in the cloud.

See all answers

What is your experience regarding pricing and costs for SQL Azure?

I would say I am at a basic experience level with the pricing, setup costs and licensing because while I am the administrator for the service, I do not provision the services and worry about the co...

See all answers

What needs improvement with SQL Azure?

I have no comments at the moment on how Microsoft Azure SQL Database can be improved. I have no comments on additional features that I would like to see released in the next release. I do not have ...

See all answers

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Compared 17% of the time

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Compared 14% of the time

MongoDB Atlas vs Microsoft Azure SQL Database

Compared 12% of the time

Azure Database for PostgreSQL vs Microsoft Azure SQL Database

Compared 12% of the time

Oracle Database as a Service vs Microsoft Azure SQL Database

Compared 4% of the time

More Microsoft Azure SQL Database Competitors

Product Reports

Buyer's Guide

Database as a Service (DBaaS)

February 2026

Download Google Cloud Spanner product report

Buyer's Guide

Microsoft Azure SQL Database

February 2026

Download Microsoft Azure SQL Database product report

Also Known As

Google Spanner

No data available

Overview

Cloud Spanner is the first and only relational database service that is both strongly consistent and horizontally scalable. With Cloud Spanner you enjoy all the traditional benefits of a relational database: ACID transactions, relational schemas (and schema changes without downtime), SQL queries, high performance, and high availability. But unlike any other relational database service, Cloud Spanner scales horizontally, to hundreds or thousands of servers, so it can handle the highest of transactional workloads. With automatic scaling, synchronous data replication, and node redundancy, Cloud Spanner delivers up to 99.999% (five 9s) of availability for your mission critical applications. In fact, Google’s internal Spanner service has been handling millions of queries per second from many Google services for years.

Google

Microsoft Azure SQL Database is a relational database-as-a-service that delivers predictable performance, scalability, business continuity, data protection, and near-zero administration to cloud developers and solution architects. This is the deep technical library for Azure SQL Database.

Microsoft

Sample Customers

Streak, Optiva, Mixpanel

adnymics GmbH, LG CNS, Centrebet, netfabb GmbH, MedPlast, Accelera Solutions, Sochi Organizing Committee, realzeit GmbH

Buyer's Guide

Google Cloud Spanner vs. Microsoft Azure SQL Database

March 2026

Free Report: Google Cloud Spanner vs. Microsoft Azure SQL Database

Find out what your peers are saying about Google Cloud Spanner vs. Microsoft Azure SQL Database and other solutions. Updated: March 2026.

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