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Google Cloud Spanner vs Microsoft Azure SQL Database comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 12, 2024

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
5
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
6.8
Number of Reviews
136
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the Database as a Service (DBaaS) category, the mindshare of Google Cloud Spanner is 7.3%, up from 5.1% compared to the previous year. The mindshare of Microsoft Azure SQL Database is 9.2%, down from 14.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Database as a Service (DBaaS) Mindshare Distribution
ProductMindshare (%)
Microsoft Azure SQL Database9.2%
Google Cloud Spanner7.3%
Other83.5%
Database as a Service (DBaaS)
 

Featured Reviews

Ethan Lo - PeerSpot reviewer
Infrastructuer Security at Premise Data
A stable and scalable relational database that ensures a return on investment for its users
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. You can change Google Cloud Spanner's resource configuration, which is done through processing units. Suppose you set up Google Cloud Spanner initially with a hundred processing units, and then you run out of resources since your database used too much CPU. In the aforementioned scenario, you can scale up or down and face no downtime in the production phase. The solution's features are important when running a company twenty-four hours, seven days a week.
Thomas Sawyer - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"We can scale the solution if we need to."
"The solution is stable and reliable."
"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."
"The application deployment in the cloud is the best feature of the infrastructure."
"Google Cloud Spanner is stable."
"It is a very scalable solution."
"I am delighted to use this solution."
"If anybody is using Azure Cloud, they should definitely use Azure SQL."
"Microsoft Azure SQL Database is fairly easy to use and set up for our DBA teams, who use it for various applications and tools like RabbitMQ."
"Database services and Active Directory related functions for this solution are good. Stable, scalable, and easy to install. Its technical support is good."
"Great auto-scaling and security features."
"I rate Microsoft Azure SQL Database 10 out of 10."
"We have come from hosting on-premise for customers, or they've done it themselves with SQL. We've now taken a cloud offering for the equivalent services of standard database management and the inbuilt backup and restore offerings. The scalability is probably the biggest feature that we are benefiting from by being in the cloud."
"Microsoft Azure SQL Database has significantly improved our operations by allowing us to extract data and generate comprehensive reports in Power BI."
 

Cons

"I want to improve the deployment of cameras and surveillance infrastructure."
"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."
"The cost can be a bit high."
"The tool needs to improve horizontal scaling."
"The tool lacks to offer AI features."
"Pricing could be improved to make Microsoft Azure SQL Database more accessible."
"The underlying Windows OS is highly scalable but has a very large resource requirement."
"The pricing is actually complicated, and that is probably one downside of it."
"Scalability Cost efficiency Business continuity"
"SQL Azure's performance monitoring features need to be improved."
"I want the pricing to be improved. They should try to lower it for their customers."
"It would help if the solution was more secure."
"Sometimes, we encounter limitations due to our use of a government cloud environment, which differs from commercial cloud platforms."
 

Pricing and Cost Advice

"It is expensive."
"Google Cloud Spanner is an expensive solution."
"Price-wise, I heard that Google Cloud Spanner is on the higher side."
"The solution is expensive."
"The solution is expensive."
"It's reasonably priced and when you compare it with other products in the cloud environment, it's cheaper."
"We have a three-year contract. The cost was somewhere around $70-80,000 for the original deployment, which was about two years ago"
"It is quite expensive. I would definitely recommend not using the pay-as-you-go model because this will just mean all your money will go to Microsoft. So, really make sure to control resource usage as much as possible."
"The pricing is actually complicated, and that is probably one downside of it. In some respects, although we can plan for the costs on a month-by-month basis, we are finding it hard to project our costings for it. Fundamentally, Microsoft is offering two pricing models, and it is challenging to understand the differences between the two. We're basically on the DTU model at the moment. That may change in the future as the size grows, but it is one of those things that we'll end up monitoring as we progress. At the moment, to get a reasonable response, generally, the price is a little high for us, but it is one of those things for which we know that we can do improvements on our code. So, it is not just the service that's the problem; it is some of the things that we need to do as well."
"There is a license required to use the solution and it cost $30 to do the installation."
"It is beneficial in terms of cost because you are charged per data unit instead of licensing."
"I would rate the pricing a seven out of ten."
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Top Industries

By visitors reading reviews
Financial Services Firm
25%
Healthcare Company
9%
Computer Software Company
8%
Manufacturing Company
8%
Outsourcing Company
13%
Financial Services Firm
12%
Construction Company
10%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise17
Large Enterprise62
 

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...
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...
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 ...
What is your primary use case for SQL Azure?
My main use cases for Microsoft Azure SQL Database are third-party applications.
 

Also Known As

Google Spanner
No data available
 

Overview

 

Sample Customers

Streak, Optiva, Mixpanel
adnymics GmbH, LG CNS, Centrebet, netfabb GmbH, MedPlast, Accelera Solutions, Sochi Organizing Committee, realzeit GmbH
Find out what your peers are saying about Google Cloud Spanner vs. Microsoft Azure SQL Database and other solutions. Updated: August 2026.
910,479 professionals have used our research since 2012.