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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 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 application deployment in the cloud is the best feature of the infrastructure."
"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 solution is stable and reliable."
"Google Cloud Spanner is stable."
"We appreciate that Microsoft Azure SQL Database supplies reliability and efficiency with its infrastructure, which is very beneficial to our organization."
"Its performance is good. It has a lot of features. It has the backup feature, which is not there in Amazon RDS. In Azure SQL, there is an option to replicate and restore a database point to point, whereas we can't do that with Amazon RDS."
"Its technical support team is good."
"The feature I like the most about Microsoft Azure SQL Database is that it's a managed service, which is the main reason we use it, as a global enterprise we used to spend a lot of time maintaining SQL Server and SQL Databases, and using Azure SQL allows us to leverage our people's comprehensive power to focus on more important tasks than just upgrading the SQL and doing maintenance."
"I rate Microsoft Azure SQL Database 10 out of 10."
"It's the type of product that doesn't need much technical support assistance as it works seamlessly."
"The features of Microsoft Azure SQL Database that I find most valuable are the ability to scale it up and down dynamically with customer load, which is necessary because during the day or business hours when there's more load, we need to scale it up and scale it back down at night for cost efficiency."
"I rate Microsoft Azure SQL Database nine out of 10."
 

Cons

"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 tool lacks to offer AI features."
"The cost can be a bit high."
"The tool needs to improve horizontal scaling."
"I want to improve the deployment of cameras and surveillance infrastructure."
"I think Microsoft Azure SQL Database should be cheaper. The license is expensive, but not always; it depends on the case regarding pricing and licensing."
"The pricing plans when using multiple Microsoft solutions are complex and have room for improvement."
"Lack of flexibility for developers in terms of performance assistance."
"I want the pricing to be improved. They should try to lower it for their customers."
"If the product could support applications requiring an SQL server for installation, by using SQL Azure as a backend, that would be useful."
"The solution could be less expensive. They need to work on their pricing model."
"Its compatibility with existing applications can be improved. Its compatibility is currently a little bit imbalanced."
"Price definitely may be a negative point. As for most of cloud based solution, certain cost components as CPU and IO usage may cause extremely hi costs."
 

Pricing and Cost Advice

"The solution is expensive."
"It is expensive."
"Google Cloud Spanner is an expensive solution."
"Price-wise, I heard that Google Cloud Spanner is on the higher side."
"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."
"It is expensive for us. We are looking for something less expensive and thinking of migrating the whole system."
"Its price can definitely be lower. It is pretty pricey."
"It only has a subscription-based license."
"I find that they are relatively expensive, especially when compared to AWS, where the prices are notably lower."
"Microsoft Azure SQL Database is not cheap."
"Compared to other providers, the pricing is definitely on the affordable side."
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Top Industries

By visitors reading reviews
Financial Services Firm
25%
Healthcare Company
9%
Computer Software Company
8%
Manufacturing Company
8%
Financial Services Firm
13%
Outsourcing Company
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 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: August 2026.
908,834 professionals have used our research since 2012.