Analyze database contents using basic, intermediate and advanced SQL statement syntax and usage. Demonstrate capability to query data from multiple tables using SQL JOINS. Create and modify database ...

A common SQL habit is to use SELECT * on ... For instance, if you insert data into a table and then use UPDATE to change it, like I’ve just shown, that’s two separate transactions.

A temporal table lets you retrieve the state of your data at any point in time ... of a temporal table (by adding a new column, for example), SQL Server will take care of copying the change to your ...

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 ...

If your business uses relational databases to store data, it helps to use the SQL SELECT command with the INTO clause to create new tables from query results. This method isn't ANSI-standard SQL ...

Users can still access tables ... supported in SQL Server, with XML data stored as binary large objects. Applications now can query data contained within an XML document and modify it in place ...