I have experience with SQL Server. My company switched from SQL Server to Oracle Database as a Service since we found the latter to be one of the best products in the market.

We have used other cloud providers. However, they did not have a true high-availability cloud solution. The second issue we found is that I/O bandwidth was comparatively variable on the other cloud providers and we could not scale easily beyond a few terabytes without facing I/O bottlenecks.

I'm working on Postgres and Advanced Postgres and we have some products on it, but I found that the performance is not the same as Oracle Database as a Service.

We do use a bit of PostgreSQL. 

Previously, we were working with MySQL.

If a customer requires a solution, we go with that solution. therefore, we use a variety of products. 

For example, we've also used WebLogic, which is a bit simpler and easier to handle.

Previously to using this solution I used Microsoft SQS and switched over based on suggestions from the employees.

Previously, we utilized Oracle on-premises solutions for our database needs. We switched to SQL Server for specific business requirements. However, more recently, we transitioned to Oracle Database as a Service (DBaaS), a shift influenced by a reassessment of our evolving business needs.

I have used a different solution prior to Oracle. I can't recall the name of the product, however. 

I have used Microsoft SQL Server and switched to Oracle Database because it can support large systems with many users. Most large systems today run on Unix or Reynolds operating systems, and Oracle Database is well-suited for these environments. However, IT environments such as AWS or Azure are increasingly moving to the cloud.

We previously used Microsoft SQL Server.

I previously used Microsoft and if you compare Oracle to Microsoft SQL server, I believe Oracle is so much better than Microsoft SQL Server that they are not comparable. So, I obviously prefer working with the Oracle product. The reason for the difference is probably that Oracle is basically a database company and they focus on this aspect of their business. Microsoft, having many products, is not so focused on this competition with Oracle and they are more focused on Microsoft NET Frameworks and Microsoft Office. Oracle itself has many products right now, but all of them are database products. This concentration is why Oracle is number one in transactional databases.

Other than Oracle Database as a Service, I have worked with Microsoft and SAP. Oracle Database as a Service is better than other solutions because it is easy to work with, and we can use many tools to work with it.

I think everybody knows that they need to move from on-premise to the cloud. They know the cloud is what's coming next. They know it's way to quickly interface with social media with Big Data very quickly. I think their hesitancy is: where does it fit? Give us the opportunity to do a hybrid cloud so that our staff can be up to date on exactly how this works and I think then they'll move there faster. There are other clouds with MANY hidden costs.  Please hire an expert to consult when evaluating hidden costs on the cloud.  Viscosity North America pays particular attention to these hidden costs.  Viscosity also has an Oracle vs. AWS whitepaper on our website.

So obviously we did an ROI analysis and a TCU. So, we have seen that the cost is definitely a factor. And security is more important, so that's why we did not press the button on the production yet. So we are piloting with the non-prod to see what kind of security we're going to get, what kind of threats are we going to be exposed to. And once we are satisfied, once we get our sign-off from the management, we might probably pull the trigger. But we are in the evaluation period.

Prior to using Oracle Database as a Service, we were using MySequence. We chose to switch solutions due to the cost.

I have used MySQL and Microsoft SQL Server, and there is no comparison to Oracle. 

I have always used Oracle Database.

Most of the DEV/UAT/TEST were on-premises, which moved to the cloud with consolidation.

Usually it's a long process so it starts when you realize that the hardware you have is going to be obsolete and you start your process there. You know one year from now I have to do something, I have to buy new hardware, I have to do something. That's usually where the process starts and then you start thinking should I buy a new hardware or should I go to the cloud.

We had Hitachi storage, but the performance and the support were very bad.