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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
6.9
Number of Reviews
134
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Database as a Service (DBaaS) category, the mindshare of Google Cloud Spanner is 7.9%, up from 4.5% compared to the previous year. The mindshare of Microsoft Azure SQL Database is 9.9%, 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
ProductMindshare (%)
Microsoft Azure SQL Database9.9%
Google Cloud Spanner7.9%
Other82.2%
Database as a Service (DBaaS)
 

Featured Reviews

LJ
System Architect at UST Global España
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.
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

"The solution is stable and reliable."
"We can scale the solution if we need to."
"It is a very scalable solution."
"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."
"The most valuable aspect of SQL Azure is the SQL language itself. It's open and everybody can use it at my company. Also, we thought in the beginning that the response time would be inadequate, but it's actually decent. It's much better than expected. Then again, I'm not a programmer, but that's what I hear from our development team."
"The most valuable feature is PolyBase."
"What I like about SQL Azure is that it's similar to your on-premises SQL databases. It's not much different, so it's easy to start quickly on the solution if you know Microsoft SQL. I find its ease of use most valuable, and I also like that SQL Azure is also easily integrated with the Azure Cloud platform."
"Microsoft Azure SQL Database benefits my company on a day-to-day basis as it serves as an excellent place to store our database and data."
"I like that Microsoft Azure SQL Database is almost identical to an on-premise SQL Server except for a few things, like how you edit rows and some jobs that you can't run."
"I rate Microsoft Azure SQL Database 10 out of 10."
"Its cost benefit is most valuable because you are charged per data unit instead of licensing. You can easily migrate your on-premise SQL to the cloud with a managed instance. That's what it is designed to do. It is easy to take your on-premise or older SQL instance and move it to the cloud. It makes it easy to get off your on-premise SQL and start utilizing the cost benefit of the cloud."
"The most valuable feature from the infra point of view is you don't have to keep any on-prem infrastructure, it is available all the time whenever you want to access it."
 

Cons

"The tool lacks to offer AI features."
"The tool needs to improve horizontal scaling."
"The cost can be a bit high."
"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."
"I want to improve the deployment of cameras and surveillance infrastructure."
"There is probably more functionality in our on-prem SQL Server than SQL Azure."
"We've had many concurrency issues with it, particularly with applications that do a lot of parallel processing. We noticed that sometimes the Azure SQL databases would spike and peak their CPU units, causing some performance issues for us. It would be helpful if CPU performance were not pinned to the amount of storage you're using, and we could scale different properties of the Azure SQL database independently."
"I would like to see integration with Snowflake."
"I feel that the price is high and it could be reduced."
"They could improve Azure SQL by adding some of the features available on-prem, such as cross-database queries and the ability to run particular jobs. We need to migrate those to something else, like a function or logic app."
"They should also simplify the security in Azure. We are using the cloud as a platform, so there is no physical infrastructure. We're using Azure components like databases and servers to create an application. Integrating those components in terms of permissions and security is challenging for us. Maybe there is a lack of knowledge on our side, but it's not straightforward."
"The benefits I have realized from using Microsoft Azure SQL Database are currently limited since we've only done it in test and dev environments right now, and we haven't moved to production, so we haven't realized the full gain just yet."
"The only thing that concerns me today is the pricing connected with Microsoft Azure SQL Database; everything else is all right."
 

Pricing and Cost Advice

"The solution is expensive."
"Google Cloud Spanner is an expensive solution."
"It is expensive."
"Price-wise, I heard that Google Cloud Spanner is on the higher side."
"I am not aware of the exact pricing, but our monthly bill for Azure is around 80,000. It is less expensive than using SQL Server. It has the pay-as-you-go model, and the charges are based on the usage."
"When you go with SQL Azure Database, you can create a small database, which is around $4 to $5 per month for development purposes."
"The solution is expensive."
"It requires a license. As compared to its competitors, such as Oracle, it is affordable and reasonable."
"It only has a subscription-based license."
"The license is based on the number of users."
"SQL Azure's licensing cost is expensive."
"From a licensing benefit standpoint, we have clients who are coming with their own SQL licensing with Software Assurance, and they are able to use those licenses for their Azure SQL and reduce costs."
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Top Industries

By visitors reading reviews
Financial Services Firm
24%
Healthcare Company
9%
Computer Software Company
9%
Media Company
7%
Financial Services Firm
15%
Outsourcing Company
8%
Marketing Services Firm
7%
Computer Software Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business60
Midsize Enterprise17
Large Enterprise61
 

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 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...
What needs improvement with Google Cloud Spanner?
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 ...
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: April 2026.
893,221 professionals have used our research since 2012.