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XPath & XQuery Tutorial for SQL Pros


Prior to starting at Altova I had zero experience with both XPath and XQuery. The first task I was presented with was to train myself on both query languages as quickly as possible and produce a concise video tutorial. It was important to develop a thorough understanding of their features and capabilities because both languages are integral to app development in MobileTogether and querying data in XMLSpy. I started with a strong background in SQL, learning XPath and XQuery by building queries first in SQL, and then determining how to replicate them in both query languages.

 

 

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Using Google Cloud SQL


Google recently announced their next generation of managed MySQL offerings on Cloud SQL, so we wanted to take it for a spin and create a cloud-based SQL database that we could then utilize as the back-end for mobile apps, or even for advanced data analytics from our desktop.

According to Google, the two principal goals of the second generation of Cloud SQL were better performance and scalability per dollar. It seems that they succeeded in these goals: the second generation Cloud SQL is more than seven times faster than the first. And it scales to 10TB of data, 15,000 IOPS, and 104GB of RAM per instance — well beyond the first generation. So it looks like the ideal, scalable cloud-based database back-end for mobile apps.

Data n the cloud

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