We have seen how to read data from a file, either in unstructured text or CSV format, and how to write data in these formats. We’ve also seen how to read and write JSON. In this chapter we’ll see how ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The easiest way for a Java developer to learn Java Database Connectivity (JDBC) is to experiment ...

Microsoft's SQL Server software, used in thousands of businesses ranging from storefront operations to multinational companies, has capabilities to bulk-insert Comma Separated Value files into a ...

Thanks to the technology behind ChatGPT, it’s become surprisingly simple to query a data set in plain English. As with most generative AI, results from OpenAI’s API are still imperfect, which means ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

Everyone likes doing things with SQL, so let's make it so people can do batch ingestion using SQL INSERT! I'd like to make it possible to write an INSERT INTO .... SELECT query that maps onto Druid's ...

There are a couple of scenarios that frustrate me when writing or editing INSERT SQL statements on tables with multiple attributes, probably because of the nature of SQL language itself, but tools ...