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Google Cloud Spanner vs Microsoft Azure SQL Database comparison

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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
140
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2026, in the Database as a Service (DBaaS) category, the mindshare of Google Cloud Spanner is 7.3%, up from 5.5% compared to the previous year. The mindshare of Microsoft Azure SQL Database is 9.2%, down from 13.0% 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

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.
Matthew Parker - PeerSpot reviewer
Ai Team Lead at Phoenix Software
Integrates with familiar tools and supports reliable data storage for AI applications
Microsoft Azure SQL Database can be improved overall by being able to compete with some of the features that come from things such as PostgreSQL. From my team's perspective in terms of building AI applications, more native integrations with some of the newer AI data types, such as vectors for storing embeddings, would be beneficial. I think all of that is coming. It is just a big product, so I think it is naturally a little bit behind the curve. However, that is not necessarily a bad thing because a lot of customers, because it has been around for so long, they trust it and they are willing to wait until those features become available.

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."
"Google Cloud Spanner is stable."
"The application deployment in the cloud is the best feature of the infrastructure."
"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."
"We can scale the solution if we need to."
"The solution is stable and reliable."
"The scalability and simple management of the infrastructure are the most valuable features."
"We were able to cut down the size of our data center by 80%."
"Its cost benefit is most valuable because you are charged per data unit instead of licensing."
"Microsoft Azure SQL Database has helped us tremendously with regards to cost and scaling, and it is just really easy to use and really easy with permissions as well through Entra ID."
"Microsoft Azure SQL Database has significantly reduced our total cost of ownership by eliminating the need for a dedicated environment to host SQL."
"In my current role, I consider SQL Azure the leader for cloud-based RDBMS solutions, far ahead of any other cloud-based RBMS offering."
"I prefer using Microsoft SQL Server because I like the experience and the way Microsoft handles the query tuning and security."
"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."
 

Cons

"The tool needs to improve horizontal scaling."
"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 lacks to offer AI features."
"Microsoft Azure SQL Database can be improved overall by being able to compete with some of the features that come from things such as PostgreSQL."
"The only problem we have with Azure is regarding the price."
"In terms of management, you can't really pause things."
"Scalability is an issue because we can't upgrade to new versions due to hardware limitations."
"The price is high in my opinion, but we can lower the price with mechanisms like Azure Hybrid Benefit."
"There are certain shortcomings when it comes to the stability of the product, especially if I consider the fact that there can always be some bug-related issues in the tool."
"I haven't explored SQL Azure's features much, but I would like to see some better integration with Python."
"If the product could support applications requiring an SQL server for installation, by using SQL Azure as a backend, that would be useful."
 

Pricing and Cost Advice

"Google Cloud Spanner is an expensive solution."
"Price-wise, I heard that Google Cloud Spanner is on the higher side."
"It is expensive."
"The solution is expensive."
"SQL Azure is an expensive solution."
"I would rate the pricing a seven out of ten."
"It is beneficial in terms of cost because you are charged per data unit instead of licensing."
"There is a license required to use the solution and it cost $30 to do the installation."
"The licensing for this solution is based on subscription."
"The solution is more cost-effective than Google BigQuery. Compared to Google BigQuery, downloading data can be more expensive."
"Microsoft Azure SQL Database is not cheap."
"I would like it to be cheaper, but comparatively, it is reasonably priced."
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Top Industries

By visitors reading reviews
Financial Services Firm
24%
Healthcare Company
9%
Manufacturing Company
8%
Computer Software Company
7%
Outsourcing Company
17%
Financial Services Firm
12%
Manufacturing Company
9%
Construction Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business64
Midsize Enterprise17
Large Enterprise66
 

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?
For pricing, it is a good benefit. You can decrease the price by approximately 25% or 30% maximum. It is a good opportunity for us. Software Assurance and Azure Hybrid Benefit is a good opportunity...
What needs improvement with SQL Azure?
This question is complicated. Some developers know the SQL language, but they are not database managers. They can develop with some queries, which is acceptable for us, but management of SQL engine...
What is your primary use case for SQL Azure?
We work in Azure on our applications. We work with SQL, Cosmos DB, PostgreSQL, and we work with some services: AKS, Kubernetes services, managed Kubernetes, which we use in our applications. We use...
 

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: September 2026.
917,403 professionals have used our research since 2012.