Google Cloud has recently announced the preview of a global queries feature for BigQuery. The new option lets developers run ...

Microsoft SQL Server installation is simple when system requirements and edition choices are planned.Choosing the right authentication mode, such as ...

The beauty and joy of a relational database is the concept of relational closure—everything is a table. Beyond the eponymous table, query results are also “tables.” Any query serves as a table to be ...

Pitfall: One of the most common mistakes of all is to forget to add proper indexing. Without indexes, SQL queries will eventually slow down over time and with increasing database size. Solution: Make ...

Currently huge piece of SQL functionality couldn't be used in virtual datasets due to the fact that dataset query is being put into from section in a pattern "from ("SQL query") as virtual_table. This ...

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 ...

Do you want to find out how to avoid duplicates in the results of a SQL SELECT query? This article will show you how. Simply use the DISTINCT clause and between the SELECT clause and the fields.